# Graphic ## **Overview** Defines a lightweight graphics system that provides basic UI and container views, including buttons, images, labels, lists, animators, scroll views, swipe views, and layouts. This system also provides the Design for X \(DFX\) capability to implement features such as view rendering, animation, and input event distribution. **Since:** 1.0 **Version:** 1.0 ## **Summary** ## Files

File Name	Description
animator.h	Defines the attributes and common functions of the animator module.
easing_equation.h	Defines the attributes and functions of the animation easing module.
interpolation.h	Defines the functions for calculating the interpolation in computer graphics.
color.h	Defines color attributes for the graphics system and implements common color functions.
image.h	Declares basic image attributes, including the image type and path.
screen.h	Declares the screen information.
task.h	Declares the Task class of the graphics module, which provides functions for setting the running period and time of a task.
text.h	Declares the Text class that provides functions to set basic text attributes, such as the text direction and alignment mode.
abstract_adapter.h	Defines the base class for adapters.
root_view.h	Manages a root view.
text_adapter.h	Defines a text adapter that is used to construct UILabel instances.
ui_abstract_clock.h	Declares the UIAbstractClock class that provides the functions related to clocks.
ui_abstract_progress.h	Defines the base class attributes and common functions of a progress bar.
ui_abstract_scroll.h	Declares the base class used to define the attributes of a scroll. The UIList, UIScrollView, and UISwipeView inherit from this class.
ui_analog_clock.h	Declares an analog clock.
ui_arc_label.h	Defines the attributes of an arc label.
ui_axis.h	Defines the attributes and functions of the x- and y-axises. This class is used in UIChart.
ui_box_progress.h	Defines the attributes and common functions of a linear progress bar.
ui_button.h	Defines the attributes and common functions of a button.
ui_canvas.h	Defines the attributes of the canvas component and provides functions for drawing rectangles, circles, and others.
ui_chart.h	Defines the attributes of the chart component and provides functions for adding and deleting data sets to display a chart.
ui_checkbox.h	Defines the attributes and common functions of a check box.
ui_circle_progress.h	Defines the attributes and common functions of a circular progress bar.
ui_dialog.h	Declares the UIDialog class that defines the dialog box component.
ui_digital_clock.h	Declares a digital clock.
ui_image_animator.h	Defines the attributes and functions of an image animator.
ui_image_view.h	Declares an image view.
ui_label.h	Declares a UILabel class that represents a label.
ui_label_button.h	Declares a label button.
ui_list.h	Declares a scrollable list in the vertical or horizontal direction. * This scrollable list can be used with the adapter AbstractAdapter to implement scrolling, inertial scrolling, automatic alignment, and invoking of a callback when a child view at the preset position is selected as this list scrolls. It is used when there is a large number of child views with a fixed format.
ui_picker.h	Defines the attributes and functions of the UIPicker class.
ui_radiobutton.h	Defines the attributes and common functions of a radio button.
ui_scroll_view.h	Declares a view group that allows its child views to be displayed as scroll events occur.
ui_slider.h	Defines the attributes and common functions of a slider.
ui_surface_view.h	Declares the surface view that interacts with the multimedia to achieve camera preview and video playback.
ui_swipe_view.h	Defines the attributes and common functions of a swipe view.
ui_texture_mapper.h	Defines the attributes and functions of a texture mapper.
ui_time_picker.h	Defines the attributes and functions of the UITimePicker class.
ui_toggle_button.h	Defines the attributes and common functions of a toggle button.
ui_view.h	Declares the base class of a view, providing basic view attributes and operations. All views are derived from this class.
ui_view_group.h	Declares a view group.
event_injector.h	Declares the function for simulating input events.
ui_dump_dom_tree.h	Declares a function for exporting information about a Document Object Model (DOM) tree or DOM node.
ui_screenshot.h	Declares the screenshot function.
aod_callback.h	Defines the callback for the touch event notification in screen-off mode.
cancel_event.h	Declares a cancel event, which usually occurs when the target view changes due to user sliding. For example, this event is triggered if you, after pressing a button, does not release the button but slides.
click_event.h	Declares a click event, which indicates that a finger is pressed on the screen and then lifted within 1 second.
drag_event.h	Declares a drag event, which indicates a certain movement (more than 10 pixels) after a view is pressed.
event.h	Declares the base class of a user input event and provides functions to record information such as the event position and timestamp.
key_event.h	Declares a key event, which indicates that a physical button is pressed or released.
long_press_event.h	Declares a long-press event, which indicates that the finger is not raised or moved within 1 second after a view is pressed.
press_event.h	Declares a touch event, which indicates that the touchscreen or mouse is pressed.
release_event.h	Declares a release event, which indicates that the touchscreen or mouse is released.
virtual_device_event.h	Declares a virtual device event, which is used to receive a customized input event and call back the listening function registered.
geometry2d.h	Defines attributes of 2D geometries (including points, lines, rectangles, and polygons) of the lightweight graphics system and provides functions for performing operations on the geometries.
graphic_assert.h	Declares the assertion utility for the graphics module.
graphic_config.h	Provides configuration items required for graphics.
graphic_math.h	Defines mathematical operation functions and types, including trigonometric functions, two-dimensional vectors, three-dimensional vectors, and matrices.
graphic_types.h	Defines the common data types for the graphics system.
heap_base.h	Declares the functions for overriding the new and delete functions.
image_info.h	Defines image information.
flex_layout.h	Declares a flexible layout container. You can perform simple adaptive layout on child views that the container holds, for example, to evenly arrange all child views in the same row or column.
grid_layout.h	Declares a grid layout container. You can perform simple grid layout on child views that the container holds.
layout.h	Declares the base class of the layout, which indicates the basic data types and operations that may be used in the layout.
list.h	Defines a linked list template class, which implements the data structure of bidirectional linked list and provides basic functions such as adding, deleting, inserting, clearing, popping up, and obtaining the size of the linked list.
mem_api.h	Defines the functions for memory application and release. You can implement the malloc and free functions to manage the memory.
rect.h	Defines a rectangle, including the position data of the four boundaries of the rectangle, and provides functions for rectangle inclusion, intersection, and aggregation.
style.h	Defines the attributes and common functions of style.
sys_info.h	Declares the system information about the graphics module, including the function to obtain the information about FPS, which needs to be enabled by the ENABLE_FPS_SUPPORT macro.
theme.h	Declares the base class used to define the functions related to the styles of different components.
theme_manager.h	Declares the singleton class used to manage the current screen theme of an application.
transform.h	Provides functions to transform components, points, and line segments, including rotation and scaling.
version.h	Declares the version number control for the graphics module. This file defines functions to obtain the version number and library description.

## Data Structures

Data Structure Name	Description
OHOS::AnimatorCallback	Represents the animator callback.
OHOS::Animator	Represents an animator.
OHOS::AnimatorManager	Represents the animator manager.
OHOS::EasingEquation	Defines functions for specifying the velocity of an animation.
OHOS::Interpolation	Calculates the Bezier interpolation.
OHOS::Color16	Defines the color attribute when the color depth is 16.
OHOS::Color24	Defines the color attribute when the color depth is 24.
OHOS::Color32	Defines the color attribute when the color depth is 32.
OHOS::Color	Converts colors in different formats and defines common colors.
OHOS::Image	Represents basic image attributes, including the image type and path.
OHOS::Screen	Represents the screen info of the device.
OHOS::Task	Represents the Task class of the graphics module. This class provides functions for setting the running period and time of a task.
OHOS::Text	Represents the base class of Text, providing the text attribute setting and text drawing capabilities for components that require font display.
OHOS::AbstractAdapter	Defines the base class for adapters. You can derive AbstractAdapter based on actual requirements and use the GetView() and GetCount() functions to implement adapters of different data types. For details, see TextAdapter.
OHOS::RootView::OnKeyActListener	Represents the listener for monitoring physical key events.
OHOS::RootView::OnVirtualDeviceEventListener	Listens for the input events triggered by a virtual device other than human touching or physical pressing.
OHOS::RootView	Defines the functions related to a root view which contains its child views and represents the root node in a tree structure.
OHOS::TextFormatter	Defines a text formatter. You can inherit this class and implement the Format() function.
OHOS::TextAdapter	Defines a text adapter, which implements UILabel instance construction and supports text data and continuous integer data.
OHOS::UIAbstractClock	An abstract class that contains functions for converting units of time (hour, minute, and second), setting and obtaining the time.
OHOS::UIAbstractProgress	Represents the abstract base class which provides functions related to the progress bar.
OHOS::UIAbstractScroll	Defines the attributes of a scroll, including the scroll direction, blank size of a scroll view, velocity and effects of a scroll animation.
OHOS::UIAnalogClock::Hand	Defines the basic attributes of the analog clock hands. This is an inner class of UIAbstractClock.
OHOS::UIAnalogClock	Provides the functions related to an analog clock.
OHOS::UIArcLabel::ArcTextInfo	Stores the attribute information about this arc text to draw.
OHOS::UIArcLabel	Defines functions related to an arc label.
OHOS::UIAxis	Represents the coordinate axis base class, which defines the basic attributes of coordinate axis, sets whether a coordinate axis is visible, and sets the number of scales on a coordinate axis. This class is used in UIChart.
OHOS::UIXAxis	Defines the unique attributes and functions for the x-axis. This class is used in UIChart.
OHOS::UIYAxis	Defines the unique attributes and functions for the y-axis. This class is used in UIChart.
OHOS::UIBoxProgress	Represents a linear progress bar.
OHOS::UIButton	Represents a button.
OHOS::Paint	Defines the basic styles of graphs drawn on canvases.
OHOS::UICanvas::FontStyle	Defines the font style.
OHOS::UICanvas	Defines a canvas, which is used to draw multiple types of 2D graphs.
OHOS::UIChartDataSerial::PointStyle	Defines the style for the top, bottom, and frontmost points in a line chart.
OHOS::UIChartDataSerial	Defines a data set and provides functions such as adding and deleting data points.
OHOS::UIChart	Defines the chart class and provides functions such as adding and deleting data sets to display a chart.
OHOS::UIChartPillar	Provides special functions for implementing a bar chart.
OHOS::UIChartPolyline	Provides special functions for implementing a polyline.
OHOS::UICheckBox::OnChangeListener	Represents a listener for changes of a check box.
OHOS::UICheckBox	Represents a check box.
OHOS::UICircleProgress	Represents a circular progress bar.
OHOS::UIDialog	Represents a dialog box.
OHOS::UIDigitalClock	Displays time digitally.
OHOS::ImageAnimatorInfo	Provides information about the images.
OHOS::UIImageAnimatorView::AnimatorStopListener	Represents a listener that contains a callback to be invoked when this animator stops.
OHOS::UIImageAnimatorView	Represents an image animator.
OHOS::UIImageView	Defines the functions related to an image view.
OHOS::UILabel	Defines the functions for presenting a label in a specified area, setting the style and background color of a label, and setting the display mode of a long label text.
OHOS::UILabelButton	Provides the functions related to a label button.
OHOS::ListScrollListener	Represents a listener that contains a callback to be invoked when the scroll state changes or when a new child view is selected at the preset position as this list scrolls. The scroll state can be {} or SCROLL_STATE_MOVE}.
OHOS::UIList	Represents a scrollable list which is used with the adapter AbstractAdapter to implement scrolling, inertial scrolling, automatic alignment, and invoking of a callback when a child view is selected at the preset position as this list scrolls.
OHOS::UIPicker::SelectedListener	Defines the listener used by a picker. This listener is triggered when an item is selected after sliding stops.
OHOS::UIPicker	Defines a picker. Multiple texts or numbers can be put into a sliding list for selection. The selected text or numbers are highlighted.
OHOS::UIRadioButton	Represents a radio button.
OHOS::UIRepeatButton	Represents a repeat button.
OHOS::UIScrollView::OnScrollListener	Represents a listener that contains a callback to be invoked upon scroll state changes. The state can either be SCROLL_STATE_STOP or SCROLL_STATE_MOVE.
OHOS::UIScrollView	Supports horizontal or vertical scroll of child views. This class is inherited from UIAbstractScroll.
OHOS::UISlider::UISliderEventListener	Represents the listener for a slider change.
OHOS::UISlider	Represents a slider.
OHOS::UISurfaceView	Represents a surface view that interacts with the multimedia to achieve camera preview and video playback.
OHOS::UISwipeView::OnSwipeListener	Represents a listener for changes of the swipe view.
OHOS::UISwipeView	Represents a swipe view.
OHOS::UITextureMapper::AnimatorStopListener	Represents a listener that contains a callback to be invoked when this animator stops.
OHOS::UITextureMapper	Rotates and scales images.
OHOS::UITimePicker::SelectedListener	Defines the listener used by the time picker. This listener is triggered when an item is selected after sliding stops.
OHOS::UITimePicker	Defines the time picker. The time is in the format of "hour:minute" or "hour:minute:second". The selected time is highlighted.
OHOS::UIToggleButton	Represents a toggle button.
OHOS::UIView::OnClickListener	Defines a click event listener. You need to register this listener with the view to listen to click events.
OHOS::UIView::OnLongPressListener	Defines a long-press event listener. You need to register this listener with the view to listen to long-press events.
OHOS::UIView::OnDragListener	Defines a drag event listener. You need to register this listener with the view to listen to drag events.
OHOS::UIView::OnTouchListener	Defines a touch event listener. You need to register this listener with the view to listen to touch events.
OHOS::UIView	Defines the base class of a view, providing basic view attributes and operations. All views are derived from this class.
OHOS::UIViewGroup	Represents a view group that consists of its child views.
OHOS::UIDumpDomTree	Provides functions for exporting information about a specified DOM node or information about the DOM tree starting from a specified DOM node.
OHOS::CancelEvent	Defines a cancel event, which usually occurs when the target view changes due to user sliding. For example, this event is triggered if you, after pressing a button, does not release the button but slides.
OHOS::ClickEvent	Defines a click event, which indicates that a finger is pressed on the screen and then lifted within 1 second.
OHOS::DragEvent	Defines a drag event, which indicates a certain movement (more than 10 pixels) after a view is pressed.
OHOS::Event	Defines the base class of a user input event and provides functions to record information such as the event position and timestamp.
OHOS::KeyEvent	Defines a key event, which indicates that a physical button is pressed or released.
OHOS::LongPressEvent	Defines a long-press event, which indicates that the finger is not raised or moved within 1 second after a view is pressed.
OHOS::PressEvent	Defines a touch event, which indicates that the touchscreen or mouse is pressed.
OHOS::ReleaseEvent	Defines a release event, which indicates that the touchscreen or mouse is released.
OHOS::VirtualDeviceEvent	Defines a virtual device event, which is used to receive a customized input event and call back the listening function registered.
OHOS::Line	Defines a line, which consists of the start and end points.
OHOS::Polygon	Defines a polygon, including vertex coordinates and the maximum number of vertices (defined by MAX_VERTEX_NUM).
OHOS::Vector2< T >	Defines the two-dimensional vector, and provides basic mathematical operations such as vector assignment, scalar product, cross product, addition, and subtraction.
OHOS::Vector3< T >	Defines the 3-dimensional vector, and provides basic operators such as [] and ==.
OHOS::Matrix3< T >	Defines a 3 x 3 matrix.
OHOS::Point	Defines a point.
OHOS::HeapBase	Defines the base class, overriding the new and delete functions.
OHOS::ImageHeader	Defines image head node information.
OHOS::ImageInfo	Defines image information.
OHOS::FlexLayout	Defines a flexible layout container. You can perform simple adaptive layout on child views that the container holds, for example, to evenly arrange all child views in the same row or column.
OHOS::GridLayout	Defines a grid layout container. You can perform simple grid layout on child views that the container holds.
OHOS::Layout	Defines the base class of the layout, which indicates the basic data types and operations that may be used in the layout.
OHOS::ListNode< T >	Stores linked list data and contains pointers to the previous node and the next node.
OHOS::List< T >	Defines a linked list template class, which implements the data structure of bidirectional linked list and provides basic functions such as adding, deleting, inserting, clearing, popping up, and obtaining the size of the linked list.
OHOS::Rect	Defines a rectangle, including the position data of the four boundaries of the rectangle, and provides functions for rectangle inclusion, intersection, and aggregation.
OHOS::Style	Defines the basic attributes and functions of a style. You can use this class to set different styles.
OHOS::StyleDefault	Define some default style for UIView.
OHOS::SysInfo::OnFPSChangedListener	Called when the FPS changes.
OHOS::SysInfo	Obtains the system information. Currently, the FPS information can be obtained. To enable the FPS feature, enable the ENABLE_FPS_SUPPORT macro.
OHOS::ButtonStyle	Stores styles of a button in its different states.
OHOS::Theme	Defines the theme class used to define the functions related to the styles of different components.
OHOS::ThemeManager	Declares the singleton class used to manage the current screen theme of an application.
OHOS::TransformMap	Transforms a rectangle, including rotation and scaling.

## Macros

Macro Name and Value	Description
VERSION_STANDARD
ENABLE_DMA2D 0	DMA2D hardware acceleration, which does not take effect on other platforms.
ENABLE_DMA2D_TEXT 0	DMA2D hardware acceleration for font rendering, which does not take effect on other platforms.
ENABLE_ICU 0	Advanced algorithm for line breaks, which is disabled by default on other platforms.
ENABLE_WINDOW 1	Multi-window, which is enabled by default on other platforms.
ENABLE_FRAME_BUFFER 0	Display buffer for rendering data refresh, which is disabled by default on other platforms.
ENABLE_VECTOR_FONT 1	Vector type font，which is enabled by default on other platforms.
ENABLE_BUFFER_RGBA 1	Graphics bottom-layer RGBA, which is enabled by default.
ENABLE_HARDWARE_ACCELERATION 1	Graphics rendering hardware acceleration, which is enabled by default.
ENABLE_DEBUG 1	Debug mode, which is disabled by default.
ENABLE_MEMORY_HOOKS 0	Memory hook, which is enabled by default. The system memory allocation is taken over after it is enabled.
ENABLE_FPS_SUPPORT 0	Function for monitoring the image refresh frame rate, which is disabled by default.
ENABLE_ANTIALIAS 1	Anti-aliasing, which is enabled by default.
ENABLE_RECT_ANTIALIAS 0	Rectangle anti-aliasing, which is disabled by default.
ENABLE_SPEC_FONT 0	Font color mode, which is disabled by default. After it is enabled, the font color mode is set to 4 to accelerate font rendering.
ENABLE_GRAPHIC_LOG 0	Log function of a graphics subsystem, which is disabled by default.
ENABLE_AOD 0	Function for receiving input events in screen-off mode, which is disabled by default.
GRAPHIC_LOG_LEVEL 5	Defines the log level. A smaller value indicates a higher priority. Logs whose priorities are higher than a specified level can be recorded. Log levels: NONE: disabling logs FATAL: fatal level ERROR: error level WARN: warning level INFO: info level DEBUG: debugging level.
COLOR_DEPTH 32	Defines the color depth of graphics rendering. The default value is 32 bits. The value can be 16 or 32.
DEFAULT_VECTOR_FONT_FILENAME "SourceHanSansSC-Regular.otf"	Defines the file name of default vector font.
MATH_MAX (a, b) ((a) > (b) ? (a) : (b))	Larger of a and b.
MATH_MIN (a, b) ((a) < (b) ? (a) : (b))	Smaller of a and b.
MATH_ABS (x) ((x) > 0 ? (x) : (-(x)))	Absolute value of x.
MATH_MINUS (a, b) ((a) < (b) ? ((b) - (a)) : ((a) - (b)))	Difference between a and b.

## Typedefs

Typedef Name	Description
OHOS::EasingFunc) (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	typedef int16_t(* Calculates the value for the current time of an animation.

Typedef Name

Description

OHOS::EasingFunc) (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)

typedef int16_t(*

Calculates the value for the current time of an animation.

## Enumerations

Enumeration Name	Description
: uint8_t { OHOS::Animator::STOP, OHOS::Animator::START, OHOS::Animator::PAUSE, OHOS::Animator::RUNNING }	Enumerates the states of this animator.
{ OHOS::OPA_TRANSPARENT = 0, OHOS::OPA_OPAQUE = 255 }	Enumerates opacity values.
OHOS::UITextLanguageAlignment : uint8_t { OHOS::TEXT_ALIGNMENT_LEFT = 0, OHOS::TEXT_ALIGNMENT_RIGHT, OHOS::TEXT_ALIGNMENT_CENTER, OHOS::TEXT_ALIGNMENT_TOP, OHOS::TEXT_ALIGNMENT_BOTTOM }	Enumerates text alignment modes.
OHOS::UITextLanguageDirect : uint8_t { OHOS::TEXT_DIRECT_LTR = 0, OHOS::TEXT_DIRECT_RTL }	Enumerates text directions.
OHOS::UIAbstractClock::WorkMode { OHOS::UIAbstractClock::ALWAYS_ON, OHOS::UIAbstractClock::NORMAL }	Enumerates the working modes of this clock.
OHOS::UIAnalogClock::HandType { OHOS::UIAnalogClock::HandType::HOUR_HAND, OHOS::UIAnalogClock::HandType::MINUTE_HAND, OHOS::UIAnalogClock::HandType::SECOND_HAND }	Enumerates the clock hand types.
OHOS::UIAnalogClock::DrawType { OHOS::UIAnalogClock::DrawType::DRAW_LINE, OHOS::UIAnalogClock::DrawType::DRAW_IMAGE }	Enumerates the drawing types of a clock hand.
OHOS::UIArcLabel::TextOrientation : uint8_t { OHOS::UIArcLabel::TextOrientation::INSIDE, OHOS::UIArcLabel::TextOrientation::OUTSIDE }	Enumerates text orientations.
OHOS::UIBoxProgress::Direction : uint8_t { OHOS::UIBoxProgress::Direction::DIR_LEFT_TO_RIGHT, OHOS::UIBoxProgress::Direction::DIR_RIGHT_TO_LEFT, OHOS::UIBoxProgress::Direction::DIR_TOP_TO_BOTTOM, OHOS::UIBoxProgress::Direction::DIR_BOTTOM_TO_TOP }	Enumerates the directions of the progress bar.
OHOS::UIButton::ButtonImageSrc : uint8_t	Enumerates the images for different button states.
OHOS::UIButton::ButtonState : uint8_t	Enumerates the states of this button.
OHOS::Paint::PaintStyle { OHOS::Paint::STROKE_STYLE = 1, OHOS::Paint::FILL_STYLE, OHOS::Paint::STROKE_FILL_STYLE }	Enumerates paint styles of a closed graph. The styles are invalid for non-closed graphs.
OHOS::UICheckBox::UICheckBoxState : uint8_t	Enumerates the states of a check box.
OHOS::UIDialog::DialogButtonType { OHOS::UIDialog::DialogButtonType::BUTTON1, OHOS::UIDialog::DialogButtonType::BUTTON2, OHOS::UIDialog::DialogButtonType::BUTTON3 }	Enumerates buttons in a dialog box.
OHOS::UIDigitalClock::DisplayMode { OHOS::UIDigitalClock::DISPLAY_12_HOUR_NO_SECONDS, OHOS::UIDigitalClock::DISPLAY_24_HOUR_NO_SECONDS, OHOS::UIDigitalClock::DISPLAY_12_HOUR, OHOS::UIDigitalClock::DISPLAY_24_HOUR }	Enumerates the display modes of this digital clock.
OHOS::UIDigitalClock::TimeElement { OHOS::UIDigitalClock::HOUR_ELEMENT, OHOS::UIDigitalClock::MINUTE_ELEMENT, OHOS::UIDigitalClock::SECOND_ELEMENT }	Enumerates the time elements of this digital clock.
OHOS::UILabel::LineBreakMode : uint8_t { OHOS::UILabel::LINE_BREAK_ADAPT = 0, OHOS::UILabel::LINE_BREAK_STRETCH, OHOS::UILabel::LINE_BREAK_WRAP, OHOS::UILabel::LINE_BREAK_ELLIPSIS, OHOS::UILabel::LINE_BREAK_MARQUEE, OHOS::UILabel::LINE_BREAK_CLIP, OHOS::UILabel::LINE_BREAK_MAX }	Enumerates the display modes of a long text.
OHOS::VirtualDeviceEvent::DeviceType	Enumerates virtual device types.
OHOS::ColorMode : uint8_t { OHOS::ARGB8888 = 0, OHOS::RGB888, OHOS::RGB565, OHOS::ARGB1555, OHOS::ARGB4444, OHOS::AL44, OHOS::AL88, OHOS::L1, OHOS::L2, OHOS::L4, OHOS::L8, OHOS::A1, OHOS::A2, OHOS::A4, OHOS::A8, OHOS::UNKNOW }	colormode of image and font.
: uint8_t { OHOS::STYLE_BACKGROUND_COLOR, OHOS::STYLE_BACKGROUND_OPA, OHOS::STYLE_BORDER_RADIUS, OHOS::STYLE_BORDER_COLOR, OHOS::STYLE_BORDER_OPA, OHOS::STYLE_BORDER_WIDTH, OHOS::STYLE_PADDING_LEFT, OHOS::STYLE_PADDING_RIGHT, OHOS::STYLE_PADDING_TOP, OHOS::STYLE_PADDING_BOTTOM, OHOS::STYLE_MARGIN_LEFT, OHOS::STYLE_MARGIN_RIGHT, OHOS::STYLE_MARGIN_TOP, OHOS::STYLE_MARGIN_BOTTOM, OHOS::STYLE_IMAGE_OPA, OHOS::STYLE_TEXT_COLOR, OHOS::STYLE_TEXT_FONT, OHOS::STYLE_LETTER_SPACE, OHOS::STYLE_LINE_SPACE, OHOS::STYLE_TEXT_OPA, OHOS::STYLE_LINE_COLOR, OHOS::STYLE_LINE_WIDTH, OHOS::STYLE_LINE_OPA, OHOS::STYLE_LINE_CAP }	Enumerates keys of styles.
OHOS::CapType : uint8_t { OHOS::CAP_NONE, OHOS::CAP_ROUND }	Enumerates cap styles.
OHOS::SysInfo::FPSCalculateType { OHOS::SysInfo::FPS_CT_FIXED_TIME, OHOS::SysInfo::FPS_CT_AVERAGE_SAMPLING, OHOS::SysInfo::FPS_CT_PRECISE_SAMPLING }	Enumerates the FPS capture types.

## Functions

Function Name	Description
OHOS::AnimatorCallback::Callback (UIView *view)=0	virtual void Called when each frame starts. This is a pure virtual function, which needs your inheritance and implementation.
OHOS::AnimatorCallback::OnStop (UIView &view)	virtual void Called when an animator stops. This is a pure virtual function, which needs your inheritance and implementation.
OHOS::AnimatorCallback::~AnimatorCallback ()	virtual A default destructor used to delete an AnimatorCallback instance.
OHOS::Animator::Animator ()	A default constructor used to create an Animator instance.
OHOS::Animator::Animator (AnimatorCallback callback, UIView view, uint32_t time, bool repeat)	A constructor used to create an Animator instance.
OHOS::Animator::~Animator ()	virtual A destructor used to delete the Animator instance.
OHOS::Animator::Start ()	void Starts this animator.
OHOS::Animator::Stop ()	void Stops this animator.
OHOS::Animator::Pause ()	void Pauses this animator.
OHOS::Animator::Resume ()	void Resumes this animator from where it was paused.
OHOS::Animator::GetState () const	uint8_t Obtains the current state of this animator.
OHOS::Animator::SetState (uint8_t state)	void Sets the current state for this animator.
OHOS::Animator::GetTime () const	uint32_t Obtains the total duration of this animator.
OHOS::Animator::SetTime (uint32_t time)	void Sets the total duration for this animator.
OHOS::Animator::GetRunTime () const	uint32_t Obtains the running time of this animator.
OHOS::Animator::SetRunTime (uint32_t runTime)	void Sets the running time for this animator.
OHOS::Animator::IsRepeat () const	bool Checks whether this animator is repeated.
OHOS::AnimatorManager::GetInstance ()	static AnimatorManager * Obtains the AnimatorManager instance.
OHOS::AnimatorManager::Init () override	void Initializes this task.
OHOS::AnimatorManager::Add (Animator *animator)	void Adds the Animator instance to the AnimatorManager linked list for management, so that the Run function of the Animator class is called once for each frame.
OHOS::AnimatorManager::Remove (const Animator *animator)	void Removes the Animator instance from the AnimatorManager linked list.
OHOS::AnimatorManager::Callback () override	void Called when this task is executed.
OHOS::EasingEquation::SetBackOvershoot (double overshoot)	static void Sets the parameter s in the equation *(s+1)t^3 - st^2* for a back easing.
OHOS::EasingEquation::BackEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in with an overshoot.
OHOS::EasingEquation::BackEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases out with an overshoot.
OHOS::EasingEquation::BackEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in and then out with an overshoot.
OHOS::EasingEquation::CircEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in shaping like a circular curve.
OHOS::EasingEquation::CircEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases out shaping like a circular curve.
OHOS::EasingEquation::CircEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in and then out shaping like a circular curve.
OHOS::EasingEquation::CubicEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in shaping like a cubic curve.
OHOS::EasingEquation::CubicEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases out shaping like a cubic curve.
OHOS::EasingEquation::CubicEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in and then out shaping like a cubic curve.
OHOS::EasingEquation::LinearEaseNone (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Displays no linear easing effects.
OHOS::EasingEquation::QuadEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in shaping like a quadratic curve.
OHOS::EasingEquation::QuadEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases out shaping like a quadratic curve.
OHOS::EasingEquation::QuadEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in and then out shaping like a quadratic curve.
OHOS::EasingEquation::QuintEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in shaping like a quintic curve.
OHOS::EasingEquation::QuintEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases out shaping like a quintic curve.
OHOS::EasingEquation::QuintEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in and then out shaping like a quintic curve.
OHOS::EasingEquation::SineEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in shaping like a sinusoidal curve.
OHOS::EasingEquation::SineEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases out shaping like a sinusoidal curve.
OHOS::EasingEquation::SineEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime)	static int16_t Eases in and then out shaping like a sinusoidal curve.
OHOS::Interpolation::GetBezierInterpolation (int16_t t, int16_t u0, int16_t u1, int16_t u2, int16_t u3)	static int16_t Obtains the value calculated by the cubic Bezier equation.
OHOS::Color::GetMixColor (ColorType c1, ColorType c2, uint8_t mix)	static ColorType Mixes two colors (color 1 and color 2) based on a specified opacity.
OHOS::Color::GetColorFromRGB (uint8_t r8, uint8_t g8, uint8_t b8)	static ColorType Obtains the color based on the RGB color value.
OHOS::Color::GetColorFromRGBA (uint8_t r8, uint8_t g8, uint8_t b8, uint8_t alpha)	static ColorType Obtains the color based on the RGBA color value.
OHOS::Color::ColorTo32 (ColorType color)	static uint32_t Converts color data into the RGBA8888 format.
OHOS::Color::ColorTo32 (Color16 color, uint8_t alpha)	static uint32_t Converts color data with the 16-bit color depth into the RGBA8888 format.
OHOS::Color::ColorTo16 (Color32 color)	static uint16_t Converts color data from the RGBA8888 format into the RGB565 format.
OHOS::Color::White ()	static ColorType Obtains the color data of white.
OHOS::Color::Silver ()	static ColorType Obtains the color data of silver.
OHOS::Color::Gray ()	static ColorType Obtains the color data of gray.
OHOS::Color::Black ()	static ColorType Obtains the color data of black.
OHOS::Color::Red ()	static ColorType Obtains the color data of red.
OHOS::Color::Maroon ()	static ColorType Obtains the color data of maroon.
OHOS::Color::Yellow ()	static ColorType Obtains the color data of yellow.
OHOS::Color::Olive ()	static ColorType Obtains the color data of olive.
OHOS::Color::Lime ()	static ColorType Obtains the color data of lime.
OHOS::Color::Green ()	static ColorType Obtains the color data of green.
OHOS::Color::Cyan ()	static ColorType Obtains the color data of cyan.
OHOS::Color::Aqua ()	static ColorType Obtains the color data of aqua.
OHOS::Color::Teal ()	static ColorType Obtains the color data of teal.
OHOS::Color::Blue ()	static ColorType Obtains the color data of blue.
OHOS::Color::Navy ()	static ColorType Obtains the color data of navy.
OHOS::Color::Magenta ()	static ColorType Obtains the color data of magenta.
OHOS::Color::Purple ()	static ColorType Obtains the color data of purple.
OHOS::Color::Orange ()	static ColorType Obtains the color data of orange.
OHOS::Image::Image ()	A constructor used to create an Image instance. You can use this constructor when a component requires a map.
OHOS::Image::~Image ()	virtual A destructor used to delete the Image instance.
OHOS::Image::GetImageInfo () const	const ImageInfo * Obtains the image information in an array.
OHOS::Image::GetPath () const	const char * Obtains the image path in binary.
OHOS::Image::GetHeader (ImageHeader &header) const	void Obtains the basic image information, including the image format, width, and height.
OHOS::Image::GetSrcType () const	uint8_t Obtains the image type.
OHOS::Image::SetSrc (const char *src)	bool Sets the image path.
OHOS::Image::SetSrc (const ImageInfo *src)	bool Sets the image information.
OHOS::Screen::GetInstance ()	static Screen & Obtains a singleton Screen instance.
OHOS::Screen::GetWidth ()	uint16_t Obtains the width of this screen.
OHOS::Screen::GetHeight ()	uint16_t Obtains the height of this screen.
OHOS::Task::Task ()	A constructor used to create a Task instance.
OHOS::Task::Task (uint32_t period)	A constructor used to create a Task instance with the specified running period.
OHOS::Task::~Task ()	virtual A destructor used to delete the Task instance.
OHOS::Task::SetPeriod (uint32_t period)	void Sets the running period for this task.
OHOS::Task::SetLastRun (uint32_t lastRun)	void Sets the end time for this task.
OHOS::Task::GetPeriod () const	uint32_t Obtains the running period of this task.
OHOS::Task::GetLastRun () const	uint32_t Obtains the end time of this task.
OHOS::Task::TaskExecute ()	void Executes this task.
OHOS::Task::Callback ()=0	virtual void Called when this task is executed.
OHOS::Task::Init ()	virtual void Initializes this task.
OHOS::Text::Text ()	A constructor used to create a Text instance.
OHOS::Text::~Text ()	virtual A destructor used to delete the Text instance.
OHOS::Text::SetText (const char *text)	void Sets the content for this text.
OHOS::Text::GetText () const	const char * Obtains the content of this text.
OHOS::Text::SetFont (const char *name, uint8_t size)	void Sets the font name and size.
OHOS::Text::SetFontId (uint8_t fontId)	void Sets the font ID.
OHOS::Text::GetFontId () const	uint8_t Obtains the font ID.
OHOS::Text::SetDirect (UITextLanguageDirect direct)	void Sets the direction for this text.
OHOS::Text::GetDirect () const	UITextLanguageDirect Obtains the direction of this text.
OHOS::Text::SetAlign (UITextLanguageAlignment horizontalAlign, UITextLanguageAlignment verticalAlign=TEXT_ALIGNMENT_TOP)	void Sets the alignment mode for this text.
OHOS::Text::GetHorAlign () const	UITextLanguageAlignment Obtains the horizontal alignment mode.
OHOS::Text::GetVerAlign () const	UITextLanguageAlignment Obtains the vertical alignment mode.
OHOS::Text::SetTextRotation (LabelRotateDegree angle)	void Sets the clockwise rotation angle for this text.
OHOS::Text::GetTextRotation () const	LabelRotateDegree Obtains the clockwise rotation degree of this text.
OHOS::Text::GetTextRotateDegree () const	uint16_t Obtains the number of text rotation degrees.
OHOS::Text::GetTextSize () const	Point Obtains the size of this text.
OHOS::Text::SetExpandWidth (bool expand)	void Sets whether to adapt the component width to this text.
OHOS::Text::IsExpandWidth () const	bool Checks whether the component width adapts to this text.
OHOS::Text::SetExpandHeight (bool expand)	void Sets whether to adapt the component height to this text.
OHOS::Text::IsExpandHeight () const	bool Checks whether the component height adapts to this text.
OHOS::Text::GetEllipsisIndex (const Rect &textRect, const Style &style)	uint16_t Obtains the index of the character from where text will be replaced by ellipses based on the text rectangle and style.
OHOS::AbstractAdapter::AbstractAdapter ()	A constructor used to create an AbstractAdapter instance.
OHOS::AbstractAdapter::~AbstractAdapter ()	virtual A destructor used to delete the AbstractAdapter instance.
OHOS::AbstractAdapter::GetCount ()=0	virtual uint16_t Obtains the number of adapter data items.
OHOS::AbstractAdapter::GetView (UIView *inView, int16_t index)=0	virtual UIView * Obtains a UIView instance to convert adapter data into another UIView instance.
OHOS::RootView::GetInstance ()	static RootView * Obtains a singleton RootView instance.
OHOS::RootView::OnKeyActListener::OnKeyAct (UIView &view, const KeyEvent &event)=0	virtual bool Responds to a physical key event.
OHOS::RootView::GetViewType () const override	UIViewType Obtains the view type.
OHOS::RootView::OnKeyEvent (const KeyEvent &event)	virtual void Executes a physical key event.
OHOS::RootView::SetOnKeyActListener (OnKeyActListener *onKeyActListener)	void Sets the listener that contains a callback to be invoked upon a physical key event.
OHOS::RootView::ClearOnKeyActListener ()	void Clears the listener for monitoring physical key events.
OHOS::RootView::OnVirtualDeviceEventListener::OnVirtualDeviceEvent (UIView &view, VirtualDeviceEvent event)=0	virtual bool Responds to an input event triggered by a virtual device.
OHOS::RootView::OnVirtualDeviceEvent (const VirtualDeviceEvent &event)	virtual void Executes an input event triggered by a virtual device.
OHOS::RootView::SetOnVirtualDeviceEventListener (OnVirtualDeviceEventListener *onVirtualDeviceEventListener)	void Sets a listener for monitoring the input events of a virtual device.
OHOS::RootView::ClearOnVirtualDeviceEventListener ()	void Clears the listener for monitoring the input events of a virtual device.
OHOS::RootView::FindSubView (const UIView &parentView, const UIView *subView)	static bool Checks whether the target view is one of the child views of the specified parent view.
OHOS::TextFormatter::Format (int16_t value, char *outText, uint16_t textLen)	virtual bool Converts the input integer into a character string for output.
OHOS::TextAdapter::TextAdapter ()	A constructor used to create a UILabel instance.
OHOS::TextAdapter::~TextAdapter ()	virtual A destructor used to delete the UILabel instance.
OHOS::TextAdapter::GetView (UIView *inView, int16_t index) override	UIView * Obtains a UILabel instance to convert adapter data into another UILabel instance.
OHOS::TextAdapter::SetData (List< const char * > *data)	void Sets the UILabel adapter data, which is a string linked list.
OHOS::TextAdapter::SetData (int16_t start, int16_t end)	void Sets continuously increasing data. For example, if you need to set data 0, 1, 2, 3, 4, use this function to set start to 0 and end to 4.
OHOS::TextAdapter::SetFontId (uint8_t fontId)	void Sets font ID.
OHOS::TextAdapter::GetFontId () const	uint8_t Obtains font ID.
OHOS::TextAdapter::SetFont (const char *name, uint8_t size)	void Sets the font.
OHOS::TextAdapter::GetStyle ()	Style & Obtains the UILabel adapter style.
OHOS::TextAdapter::GetCount () override	virtual uint16_t Obtains the data size of the UILabel adapter.
OHOS::TextAdapter::SetWidth (int16_t width)	void Sets the width of UILabel constructed by the adapter.
OHOS::TextAdapter::SetDirect (UITextLanguageDirect direct)	void Sets the direction of the UILabel constructed by the adapter.
OHOS::TextAdapter::SetHeight (int16_t height)	void Sets the height of the UILabel constructed by the adapter.
OHOS::TextAdapter::SetLineBreakMode (const uint8_t lineBreakMode)	void Sets the LineBreakMode attribute of UILabel constructed by the adapter. For details about the values of LineBreakMode, see LINE_BREAK_ADAPT, LINE_BREAK_WRAP, LINE_BREAK_ELLIPSIS, and LINE_BREAK_MARQUEE.
OHOS::TextAdapter::SetOnClickListener (UIView::OnClickListener *clickListener)	void Sets the callback function to be invoked upon a click event.
OHOS::TextAdapter::SetTextFormatter (TextFormatter *formatter)	void Sets the text formatter.
OHOS::UIAbstractClock::UIAbstractClock ()	A default constructor used to create a UIAbstractClock instance.
OHOS::UIAbstractClock::UIAbstractClock (uint8_t hour, uint8_t minute, uint8_t second)	A constructor used to create a UIAbstractClock instance with time elements (hour, minute and second).
OHOS::UIAbstractClock::~UIAbstractClock ()	virtual A destructor used to delete the UIAbstractClock instance.
OHOS::UIAbstractClock::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIAbstractClock::SetTime24Hour (uint8_t hour, uint8_t minute, uint8_t second)	void Sets the time in 24-hour format.
OHOS::UIAbstractClock::SetTime12Hour (uint8_t hour, uint8_t minute, uint8_t second, bool am)	void Sets the time in 12-hour format.
OHOS::UIAbstractClock::GetCurrentHour () const	uint8_t Obtains the current number of hours.
OHOS::UIAbstractClock::GetCurrentMinute () const	uint8_t Obtains the current number of minutes.
OHOS::UIAbstractClock::GetCurrentSecond () const	uint8_t Obtains the current number of seconds.
OHOS::UIAbstractClock::IncOneSecond ()	void Increases the time by one second.
OHOS::UIAbstractClock::UpdateClock (bool clockInit)	virtual void Updates this clock.
OHOS::UIAbstractClock::SetWorkMode (WorkMode newMode)	virtual void Sets the working mode for this clock.
OHOS::UIAbstractClock::GetWorkMode () const	virtual WorkMode Obtains the working mode of this clock.
OHOS::UIAbstractProgress::UIAbstractProgress ()	A constructor used to create a UIAbstractProgress instance.
OHOS::UIAbstractProgress::~UIAbstractProgress ()	virtual A destructor used to delete the UIAbstractProgress instance.
OHOS::UIAbstractProgress::GetViewType () const override	UIViewType Obtains the component type.
OHOS::UIAbstractProgress::EnableBackground (bool enable)	void Sets whether the background of the progress bar is visible.
OHOS::UIAbstractProgress::SetValue (int16_t value)	void Sets the current value for this progress bar.
OHOS::UIAbstractProgress::GetValue () const	int16_t Obtains the current value of this progress bar.
OHOS::UIAbstractProgress::SetRange (int16_t rangeMax, int16_t rangeMin)	void Sets the range for this progress bar.
OHOS::UIAbstractProgress::GetRangeMin () const	int16_t Obtains the minimum value of this progress bar.
OHOS::UIAbstractProgress::GetRangeMax () const	int16_t Obtains the maximum value of this progress bar.
OHOS::UIAbstractProgress::SetImage (const char foregroundImage, const char backgroundImage=nullptr)	void Sets the image for this progress bar.
OHOS::UIAbstractProgress::SetImage (const ImageInfo foregroundImage, const ImageInfo backgroundImage=nullptr)	void Sets the image as a pixel map for this progress bar.
OHOS::UIAbstractProgress::SetStep (uint16_t step)	void Sets the step for this progress bar.
OHOS::UIAbstractProgress::GetStep () const	uint16_t Obtains the current step of this progress bar.
OHOS::UIAbstractProgress::SetBackgroundStyle (const Style &style)	void Sets the background style for this progress bar.
OHOS::UIAbstractProgress::SetBackgroundStyle (uint8_t key, int64_t value)	void Sets a background style for this progress bar.
OHOS::UIAbstractProgress::GetBackgroundStyle () const	const Style & Obtains the background style of this progress bar.
OHOS::UIAbstractProgress::GetBackgroundStyle (uint8_t key) const	int64_t Obtains the value of a background style of this progress bar.
OHOS::UIAbstractProgress::SetForegroundStyle (const Style &style)	void Sets the foreground style for this progress bar.
OHOS::UIAbstractProgress::SetForegroundStyle (uint8_t key, int64_t value)	void Sets a foreground style for this progress bar.
OHOS::UIAbstractProgress::GetForegroundStyle () const	const Style & Obtains the foreground style of this progress bar.
OHOS::UIAbstractProgress::GetForegroundStyle (uint8_t key) const	int64_t Obtains the value of a foreground style of this progress bar.
OHOS::UIAbstractProgress::SetCapType (CapType cap)	void Sets the type of caps on the background and foreground of the progress bar.
OHOS::UIAbstractScroll::UIAbstractScroll ()	A constructor used to create a UIAbstractScroll instance.
OHOS::UIAbstractScroll::~UIAbstractScroll ()	virtual A destructor used to delete the UIAbstractScroll instance.
OHOS::UIAbstractScroll::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIAbstractScroll::GetDirection () const	uint8_t Obtains the scroll direction.
OHOS::UIAbstractScroll::SetScrollBlankSize (uint16_t size)	void Sets the blank size for this scroll view.
OHOS::UIAbstractScroll::SetMaxScrollDistance (uint16_t distance)	void Sets the maximum scroll distance after a finger lifts the screen.
OHOS::UIAbstractScroll::SetReboundSize (uint16_t size)	void Sets the rebound size, which is the distance a knob moves after being released when it reaches the end of a scrollbar.
OHOS::UIAbstractScroll::GetMaxScrollDistance () const	uint16_t Obtains the maximum scroll distance after a finger lifts the screen.
OHOS::UIAbstractScroll::SetDragFunc (EasingFunc func)	void Sets the easing function that specifies a scroll animation after a finger lifts the screen.
OHOS::UIAbstractScroll::SetThrowDrag (bool throwDrag)	void Sets whether to continue scrolling after a finger lifts the screen.
OHOS::UIAbstractScroll::MoveChildByOffset (int16_t offsetX, int16_t offsetY) override	void Moves the position of all child views.
OHOS::UIAbstractScroll::SetDragACCLevel (uint16_t value)	void Sets the drag acceleration.
OHOS::UIAbstractScroll::GetDragACCLevel () const	uint8_t Obtains the drag acceleration.
OHOS::UIAbstractScroll::SetSwipeACCLevel (uint16_t value)	void Sets the compensation distance after a finger lifts the screen.
OHOS::UIAbstractScroll::GetSwipeACCLevel () const	uint8_t Obtains the compensation distance after a finger lifts the screen.
OHOS::UIAnalogClock::UIAnalogClock ()	A default constructor used to create a UIAnalogClock instance.
OHOS::UIAnalogClock::~UIAnalogClock ()	virtual A destructor used to delete the UIAnalogClock instance.
OHOS::UIAnalogClock::Hand::Hand ()	A default constructor used to create a Hand instance.
OHOS::UIAnalogClock::Hand::~Hand ()	virtual A destructor used to delete the Hand instance.
OHOS::UIAnalogClock::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIAnalogClock::SetHandImage (HandType type, const UIImageView &img, Point position, Point center)	void Sets the image used to draw a clock hand.
OHOS::UIAnalogClock::SetHandLine (HandType type, Point position, Point center, ColorType color, uint16_t width, uint16_t height, OpacityType opacity)	void Sets the line used to draw a clock hand.
OHOS::UIAnalogClock::GetHandRotateCenter (HandType type) const	Point Obtains the rotation center of a specified clock hand.
OHOS::UIAnalogClock::GetHandPosition (HandType type) const	Point Obtains the position of a specified clock hand.
OHOS::UIAnalogClock::GetHandInitAngle (HandType type) const	uint16_t Obtains the initial rotation angle of the specified clock hand.
OHOS::UIAnalogClock::GetHandCurrentAngle (HandType type) const	uint16_t Obtains the current rotation angle of the specified clock hand.
OHOS::UIAnalogClock::SetInitTime24Hour (uint8_t hour, uint8_t minute, uint8_t second)	void Sets the initial time in the 24-hour format.
OHOS::UIAnalogClock::SetInitTime12Hour (uint8_t hour, uint8_t minute, uint8_t second, bool am)	void Sets the initial time in the 12-hour format.
OHOS::UIAnalogClock::OnDraw (const Rect &invalidatedArea) override	void Draws an analog clock.
OHOS::UIAnalogClock::OnPostDraw (const Rect &invalidatedArea) override	virtual void Performs the operations needed after the drawing.
OHOS::UIAnalogClock::SetPosition (int16_t x, int16_t y) override	void Sets the position for this analog clock.
OHOS::UIAnalogClock::SetPosition (int16_t x, int16_t y, int16_t width, int16_t height) override	void Sets the position and size for this analog clock.
OHOS::UIAnalogClock::SetWorkMode (WorkMode newMode) override	void Sets the working mode for this analog clock.
OHOS::UIAnalogClock::UpdateClock (bool clockInit) override	void Updates the time of this analog clock.
OHOS::UIArcLabel::UIArcLabel ()	A default constructor used to create a UIArcLabel instance.
OHOS::UIArcLabel::~UIArcLabel ()	virtual A destructor used to delete the UIArcLabel instance.
OHOS::UIArcLabel::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIArcLabel::GetWidth () override	int16_t Obtains the width of this arc text.
OHOS::UIArcLabel::GetHeight () override	int16_t Obtains the height of this arc text.
OHOS::UIArcLabel::SetText (const char *text)	void Sets the text content for this arc label.
OHOS::UIArcLabel::GetText () const	const char * Obtains the text of this arc label.
OHOS::UIArcLabel::SetAlign (UITextLanguageAlignment horizontalAlign)	void Sets the alignment mode for this text.
OHOS::UIArcLabel::GetHorAlign () const	UITextLanguageAlignment Obtains the horizontal alignment mode.
OHOS::UIArcLabel::GetDirect ()	UITextLanguageDirect Obtains the direction of this text.
OHOS::UIArcLabel::SetFontId (uint8_t fontId)	void Sets the font ID for this arc label.
OHOS::UIArcLabel::GetFontId () const	uint8_t Obtains the font ID composed of font name and size.
OHOS::UIArcLabel::SetFont (const char *name, uint8_t size)	void Sets the font for this arc label.
OHOS::UIArcLabel::SetArcTextCenter (int16_t x, int16_t y)	void Sets the center position for this arc text.
OHOS::UIArcLabel::GetArcTextCenter () const	Point Obtains the center position of this arc text.
OHOS::UIArcLabel::SetArcTextRadius (uint16_t radius)	void Sets the radius for this arc text.
OHOS::UIArcLabel::GetArcTextRadius () const	uint16_t Obtains the radius of this arc text.
OHOS::UIArcLabel::SetArcTextAngle (int16_t startAngle, int16_t endAngle)	void Sets the start angle and end angle for this arc text.
OHOS::UIArcLabel::GetArcTextStartAngle () const	int16_t Obtains the start angle of this arc text.
OHOS::UIArcLabel::GetArcTextEndAngle () const	int16_t Obtains the end angle of this arc text.
OHOS::UIArcLabel::SetArcTextOrientation (TextOrientation orientation)	void Sets the orientation for this arc text.
OHOS::UIArcLabel::GetArcTextOrientation () const	TextOrientation Obtains the orientation of this arc text.
OHOS::UIArcLabel::OnDraw (const Rect &invalidatedArea) override	virtual void Draws an arc text.
OHOS::UIAxis::UIAxis ()	A constructor used to create a UIAxis instance.
OHOS::UIAxis::~UIAxis ()	virtual A destructor used to delete the UIAxis instance.
OHOS::UIAxis::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIAxis::SetDataRange (uint16_t min, uint16_t max)=0	virtual bool Sets the value range of a coordinate axis.
OHOS::UIAxis::SetMarkNum (uint16_t count)=0	virtual void Sets the number of scales on a coordinate axis.
OHOS::UIAxis::SetLineColor (const ColorType &color)	void Sets the line color of the coordinate axis.
OHOS::UIAxis::OnDraw (const Rect &invalidatedArea) override	void Called when a view is drawn.
OHOS::UIAxis::OnPreDraw (const Rect &invalidatedArea) override	bool Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process.
OHOS::UIAxis::TranslateToPixel (int16_t &value)=0	virtual void Translates data into pixel coordinates.
OHOS::UIXAxis::UIXAxis ()	A constructor used to create a UIXAxis instance.
OHOS::UIXAxis::~UIXAxis ()	virtual A destructor used to delete the UIXAxis instance.
OHOS::UIXAxis::TranslateToPixel (int16_t &value) override	void Translates data into the x coordinate of a pixel.
OHOS::UIXAxis::SetDataRange (uint16_t min, uint16_t max) override	bool Sets the value range of the X axis.
OHOS::UIXAxis::SetMarkNum (uint16_t count) override	void Sets the number of scales on the x-axis.
OHOS::UIYAxis::UIYAxis ()	A constructor used to create a UIYAxis instance.
OHOS::UIYAxis::~UIYAxis ()	virtual A destructor used to delete the UIYAxis instance.
OHOS::UIYAxis::TranslateToPixel (int16_t &value) override	void Translates data into the y coordinate of a pixel.
OHOS::UIYAxis::SetDataRange (uint16_t min, uint16_t max) override	bool Sets the value range of the y-axis.
OHOS::UIYAxis::SetMarkNum (uint16_t count) override	void Sets the number of scales on the Y axis.
OHOS::UIBoxProgress::UIBoxProgress ()	A constructor used to create a UIBoxProgress instance.
OHOS::UIBoxProgress::~UIBoxProgress ()	virtual A destructor used to delete the UIBoxProgress instance.
OHOS::UIBoxProgress::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIBoxProgress::SetWidth (int16_t width) override	void Sets the width for the view holding this progress bar.
OHOS::UIBoxProgress::SetHeight (int16_t height) override	void Sets the height for this view.
OHOS::UIBoxProgress::SetDirection (const Direction &direction)	void Sets the direction for this progress bar.
OHOS::UIBoxProgress::GetDirection () const	Direction Obtains the direction of this progress bar.
OHOS::UIBoxProgress::SetValidWidth (int16_t width)	void Sets the actual width for this progress bar.
OHOS::UIBoxProgress::GetValidWidth () const	int16_t Obtains the actual width of this progress bar.
OHOS::UIBoxProgress::SetValidHeight (int16_t height)	void Sets the actual height for this progress bar.
OHOS::UIBoxProgress::GetValidHeight () const	int16_t Obtains the actual height of this progress bar.
OHOS::UIBoxProgress::OnDraw (const Rect &invalidatedArea) override	void Called when a view is drawn.
OHOS::UIButton::UIButton ()	A constructor used to create a UIButton instance.
OHOS::UIButton::UIButton (const char *id)	A constructor used to create a UIButton instance based on the button ID.
OHOS::UIButton::~UIButton ()	virtual A destructor used to delete the UIButton instance.
OHOS::UIButton::GetViewType () const override	UIViewType Obtains the component type.
OHOS::UIButton::OnPreDraw (const Rect &invalidatedArea) override	bool Do something before draw, this function will be invoked mainly to check if this view need to cover invalidate area so render manager can decide which layer to draw firstly.
OHOS::UIButton::OnDraw (const Rect &invalidatedArea) override	void Executes the draw action.
OHOS::UIButton::OnPressEvent (const PressEvent &event) override	void Executes the press event action.
OHOS::UIButton::OnReleaseEvent (const ReleaseEvent &event) override	void Executes the press release event action.
OHOS::UIButton::OnCancelEvent (const CancelEvent &event) override	void Executes the cancel event action.
OHOS::UIButton::SetImageSrc (const char defaultImgSrc, const char triggeredImgSrc)	void Sets the image for this button.
OHOS::UIButton::SetImageSrc (const ImageInfo defaultImgSrc, const ImageInfo triggeredImgSrc)	void Sets the image for this button.
OHOS::UIButton::SetImagePosition (const int16_t x, const int16_t y)	void Sets the position for this image.
OHOS::UIButton::GetImageX () const	int16_t Obtains the x-coordinate of this image.
OHOS::UIButton::GetImageY () const	int16_t Obtains the y-coordinate of this image.
OHOS::UIButton::GetCurImageSrc () const	const Image * Obtains the image for the current button state.
OHOS::UIButton::GetWidth () override	int16_t Obtains the width of this image.
OHOS::UIButton::GetHeight () override	int16_t Obtains the height of this image.
OHOS::UIButton::SetWidth (int16_t width) override	void Sets the width for this image.
OHOS::UIButton::SetHeight (int16_t height) override	void Sets the height for this image.
OHOS::UIButton::GetContentRect () override	virtual Rect Obtains a rectangular area that contains coordinate information.
OHOS::UIButton::GetStyle (uint8_t key) const override	int64_t Obtains the value of a style.
OHOS::UIButton::SetStyle (uint8_t key, int64_t value) override	void Sets a style.
OHOS::UIButton::GetStyleForState (uint8_t key, ButtonState state) const	int64_t Obtains the style of a button in a specific state.
OHOS::UIButton::SetStyleForState (uint8_t key, int64_t value, ButtonState state)	void Sets the style for a button in a specific state.
OHOS::UIButton::Disable ()	void Disables this button.
OHOS::UIButton::Enable ()	void Enables this button.
OHOS::UIButton::SetStateForStyle (ButtonState state)	void Sets the state for a button. After the setting, calling SetStyle will change the style of this button, but not its state.
OHOS::Paint::Paint ()	A constructor used to create a Paint instance.
OHOS::Paint::~Paint ()	virtual A destructor used to delete the Paint instance.
OHOS::Paint::SetStyle (PaintStyle style)	void Sets the paint style of a closed graph.
OHOS::Paint::GetStyle () const	PaintStyle Obtains the paint style of a closed graph.
OHOS::Paint::SetStrokeWidth (uint16_t width)	void Sets the width of a line or border.
OHOS::Paint::GetStrokeWidth () const	uint16_t Obtains the width of a line or border.
OHOS::Paint::SetStrokeColor (ColorType color)	void Sets the color of a line or border.
OHOS::Paint::GetStrokeColor () const	ColorType Obtains the color of a line or border.
OHOS::Paint::SetFillColor (ColorType color)	void Sets fill color.
OHOS::Paint::GetFillColor () const	ColorType Obtains the fill color.
OHOS::Paint::SetOpacity (uint8_t opacity)	void Sets the opacity.
OHOS::Paint::GetOpacity () const	uint8_t Obtains the opacity.
OHOS::UICanvas::UICanvas ()	A constructor used to create a UICanvas instance.
OHOS::UICanvas::~UICanvas ()	virtual A destructor used to delete the UICanvas instance.
OHOS::UICanvas::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UICanvas::Clear ()	void Clears the entire canvas.
OHOS::UICanvas::SetStartPosition (const Point &startPoint)	void Sets the coordinates of the start point for drawing a line. For example, if startPoint is set to {50, 50}, the line is drawn from this set of coordinates on the canvas.
OHOS::UICanvas::GetStartPosition () const	const Point & Obtains the coordinates of the start point of a line.
OHOS::UICanvas::DrawLine (const Point &endPoint, const Paint &paint)	void Draws a straight line.
OHOS::UICanvas::DrawLine (const Point &startPoint, const Point &endPoint, const Paint &paint)	void Draws a straight line from the coordinates of the start point.
OHOS::UICanvas::DrawCurve (const Point &control1, const Point &control2, const Point &endPoint, const Paint &paint)	void Draws a cubic Bezier curve.
OHOS::UICanvas::DrawCurve (const Point &startPoint, const Point &control1, const Point &control2, const Point &endPoint, const Paint &paint)	void Draws a cubic Bezier curve from the start point coordinates.
OHOS::UICanvas::DrawRect (const Point &startPoint, int16_t height, int16_t width, const Paint &paint)	void Draws a rectangle.
OHOS::UICanvas::DrawCircle (const Point &center, uint16_t radius, const Paint &paint)	void Draws a circle.
OHOS::UICanvas::DrawSector (const Point &center, uint16_t radius, int16_t startAngle, int16_t endAngle, const Paint &paint)	void Draws a sector.
OHOS::UICanvas::DrawArc (const Point &center, uint16_t radius, int16_t startAngle, int16_t endAngle, const Paint &paint)	void Draws an arc.
OHOS::UICanvas::DrawImage (const Point &startPoint, const char *image, const Paint &paint)	void Draws an image.
OHOS::UICanvas::DrawLabel (const Point &startPoint, const char *text, uint16_t maxWidth, const FontStyle &fontStyle, const Paint &paint)	void Draws text.
OHOS::UICanvas::OnDraw (const Rect &invalidatedArea) override	virtual void Called when a view is drawn.
OHOS::UIChartDataSerial::UIChartDataSerial ()	A constructor used to create a UIChartDataSerial instance.
OHOS::UIChartDataSerial::~UIChartDataSerial ()	virtual A destructor used to delete the UIChartDataSerial instance.
OHOS::UIChartDataSerial::SetMaxDataCount (uint16_t maxCount)	bool Sets the maximum number of data points that can be stored in a data set.
OHOS::UIChartDataSerial::ModifyPoint (uint16_t index, const Point &point)	bool Modifies the value of a data point in the data set.
OHOS::UIChartDataSerial::GetPoint (uint16_t index, Point &point)	bool Obtains the coordinates in the chart for a data point in the data set.
OHOS::UIChartDataSerial::AddPoints (const Point *data, uint16_t count)	bool Adds data points.
OHOS::UIChartDataSerial::ClearData ()	void Clears all data points.
OHOS::UIChartDataSerial::GetDataCount () const	uint16_t Obtains the number of data points available in the data set.
OHOS::UIChartDataSerial::EnableSmooth (bool smooth)	void Sets whether to smooth a polyline.
OHOS::UIChartDataSerial::IsSmooth () const	bool Checks whether smoothing is performed on a polyline.
OHOS::UIChartDataSerial::EnableGradient (bool enable)	void Enables the fill color of a line chart.
OHOS::UIChartDataSerial::IsGradient () const	bool Checks whether a polyline has a fill color.
OHOS::UIChartDataSerial::GetPeakIndex () const	uint16_t Obtains the index of the top point in the data set.
OHOS::UIChartDataSerial::GetLatestIndex () const	uint16_t Obtains the index of the frontmost point (the latest added or modified data point in a data set).
OHOS::UIChartDataSerial::GetValleyIndex () const	uint16_t Obtains the index of the bottom point in a data set.
OHOS::UIChartDataSerial::GetPeakData () const	int16_t Obtains the Y value of the top point in a data set.
OHOS::UIChartDataSerial::GetValleyData () const	int16_t Obtains the Y value of the bottom point in a data set.
OHOS::UIChartDataSerial::GetLineColor () const	ColorType Obtains the polyline color of the data set in a line chart.
OHOS::UIChartDataSerial::GetFillColor () const	ColorType Obtains the fill color of the data set.
OHOS::UIChartDataSerial::SetFillColor (const ColorType &color)	void Sets the fill color of the data set.
OHOS::UIChartDataSerial::SetLineColor (const ColorType &color)	void Sets the polyline color of the data set in the line chart.
OHOS::UIChartDataSerial::HidePoint (uint16_t index, uint16_t count)	void Hides some points in the data set.
OHOS::UIChartDataSerial::GetHideIndex () const	uint16_t Obtains the index from which the data set starts to hide.
OHOS::UIChartDataSerial::GetHideCount () const	uint16_t Obtains the number of hidden points in the data set.
OHOS::UIChartDataSerial::SetHeadPointStyle (const PointStyle &style)	void Sets the style of the frontmost point on a polyline.
OHOS::UIChartDataSerial::SetTopPointStyle (const PointStyle &style)	void Sets the style of the top point of a polyline.
OHOS::UIChartDataSerial::SetBottomPointStyle (const PointStyle &style)	void Sets the style of the bottom point of a polyline.
OHOS::UIChartDataSerial::GetHeadPointStyle () const	const PointStyle & Obtains the style of the frontmost point on a polyline.
OHOS::UIChartDataSerial::GetTopPointStyle () const	const PointStyle & Obtains the style of the top point of a polyline.
OHOS::UIChartDataSerial::GetBottomPointStyle () const	const PointStyle & Obtains the style of the bottom point of a polyline.
OHOS::UIChartDataSerial::EnableHeadPoint (bool enable)	void Enables the feature of drawing the frontmost point on a polyline.
OHOS::UIChartDataSerial::EnableTopPoint (bool enable)	void Enables the feature of drawing the top point of a polyline. If there are multiple top points, only the first one is drawn.
OHOS::UIChartDataSerial::EnableBottomPoint (bool enable)	void Enables the feature of drawing the bottom point of a polyline. If there are multiple bottom points, only the first one is drawn.
OHOS::UIChart::UIChart ()	A constructor used to create a UIChart instance.
OHOS::UIChart::~UIChart ()	virtual A destructor used to delete the UIChart instance.
OHOS::UIChart::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIChart::SetHeight (int16_t height) override	void Sets the height for this component.
OHOS::UIChart::SetWidth (int16_t width) override	void Sets the width for this component.
OHOS::UIChart::OnPreDraw (const Rect &invalidatedArea) override	bool Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process.
OHOS::UIChart::OnDraw (const Rect &invalidatedArea) override	void Called when a view is drawn.
OHOS::UIChart::AddDataSerial (UIChartDataSerial *dataSerial)	virtual bool Adds a data set.
OHOS::UIChart::DeleteDataSerial (UIChartDataSerial *dataSerial)	virtual bool Deletes a data set.
OHOS::UIChart::ClearDataSerial ()	virtual void Clears all data sets.
OHOS::UIChart::RefreshChart ()=0	virtual void Refreshes a chart and redraws the dirty region.
OHOS::UIChart::GetXAxis ()	UIXAxis & Obtains the x-axis instance.
OHOS::UIChart::GetYAxis ()	UIYAxis & Obtains the y-axis instance.
OHOS::UIChart::EnableReverse (bool enable)	void Enables chart reverse.
OHOS::UIChartPillar::UIChartPillar ()	A constructor used to create a UIChartPillar instance.
OHOS::UIChartPillar::~UIChartPillar ()	virtual A destructor used to delete the UIChartPillar instance.
OHOS::UIChartPillar::RefreshChart () override	void Refreshes a bar chart and redraws the dirty region.
OHOS::UIChartPolyline::UIChartPolyline ()	A constructor used to create a UIChartPolyline instance.
OHOS::UIChartPolyline::~UIChartPolyline ()	virtual A destructor used to delete the UIChartPolyline instance.
OHOS::UIChartPolyline::RefreshChart () override	void Refreshes a line chart and redraws the dirty region.
OHOS::UIChartPolyline::SetGradientOpacity (uint8_t minOpa, uint8_t maxOpa)	void Sets the opacity range of the fill color gradient.
OHOS::UIChartPolyline::SetGradientBottom (uint16_t bottom)	void Sets the distance between the bottom edge of the fill color range and the x-axis.
OHOS::UICheckBox::UICheckBox ()	A constructor used to create a UICheckBox instance.
OHOS::UICheckBox::~UICheckBox ()	virtual A destructor used to delete the UICheckBox instance.
OHOS::UICheckBox::OnChangeListener::OnChange (UICheckBoxState state)=0	virtual bool Called when the state of this check box is switched. This is a virtual function, which needs your implementation.
OHOS::UICheckBox::OnChangeListener::~OnChangeListener ()	virtual A destructor used to delete the OnChangeListener instance.
OHOS::UICheckBox::GetViewType () const override	UIViewType Obtains the component type.
OHOS::UICheckBox::SetOnChangeListener (OnChangeListener *onStateChangeListener)	void Sets the listener for this check box.
OHOS::UICheckBox::OnPreDraw (const Rect &invalidatedArea) override	bool Do something before draw, this function will be invoked mainly to check if this view need to cover invalidate area so render manager can decide which layer to draw firstly.
OHOS::UICheckBox::OnDraw (const Rect &invalidatedArea) override	void Executes the draw action Ondraw invokes the rendering function provided by the underlying layer to draw pictures based on the selected status of the checkbox.
OHOS::UICheckBox::OnClickEvent (const ClickEvent &event) override	void Executes the click event action OnClickEvent will reverse the selected state of checkbox. Example: If the check box is selected, the checkbox status is changed to Unselected after the click action is taken.
OHOS::UICheckBox::SetImages (const char selectedImageSrc, const char unselectedImageSrc)	virtual void Sets the images for this check box.
OHOS::UICheckBox::SetImages (const ImageInfo selectedImageSrc, const ImageInfo unselectedImageSrc)	virtual void Sets the images for this check box.
OHOS::UICheckBox::GetState () const	UICheckBoxState Obtains the state of this check box.
OHOS::UICheckBox::SetState (UICheckBoxState state)	void Sets the state for this check box.
OHOS::UICircleProgress::UICircleProgress ()	A constructor used to create a UICircleProgress instance.
OHOS::UICircleProgress::~UICircleProgress ()	virtual A destructor used to delete the UICircleProgress instance.
OHOS::UICircleProgress::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UICircleProgress::OnPreDraw (const Rect &invalidatedArea) override	bool Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process.
OHOS::UICircleProgress::OnDraw (const Rect &invalidatedArea) override	void Called when a view is drawn.
OHOS::UICircleProgress::SetCenterPosition (int16_t x, int16_t y)	void Sets the coordinates of the center point for this circular progress bar.
OHOS::UICircleProgress::GetCenterPosition () const	Point Obtains the coordinates of the center point for this circular progress bar.
OHOS::UICircleProgress::SetRadius (uint16_t radius)	void Sets the outer radius for this circular progress bar.
OHOS::UICircleProgress::GetRadius () const	uint16_t Obtains the outer radius of this circular progress bar.
OHOS::UICircleProgress::SetStartAngle (int16_t startAngle)	void Sets the start angle.
OHOS::UICircleProgress::GetStartAngle () const	int16_t Obtains the start angle.
OHOS::UICircleProgress::SetEndAngle (int16_t endAngle)	void Sets the end angle.
OHOS::UICircleProgress::GetEndAngle () const	int16_t Obtains the end angle.
OHOS::UICircleProgress::SetProgressImagePosition (int16_t x, int16_t y)	void Sets the coordinates of the foreground image for this progress bar relative to the view.
OHOS::UICircleProgress::SetBackgroundImagePosition (int16_t x, int16_t y)	void Sets the coordinates of the background image for this progress bar relative to the view.
OHOS::UICircleProgress::SetLineColor (ColorType color)	void Sets the foreground color for this progress bar.
OHOS::UIDialog::UIDialog ()	A constructor used to create a UIDialog instance.
OHOS::UIDialog::~UIDialog ()	virtual A destructor used to delete the UIDialog instance.
OHOS::UIDialog::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIDialog::SetTitle (const char *title)	void Sets the title for this dialog box.
OHOS::UIDialog::SetText (const char *text)	void Sets the text for this dialog box.
OHOS::UIDialog::OnPreDraw (const Rect &invalidatedArea) override	bool Checks whether this label needs to be covered before drawing it.
OHOS::UIDialog::SetButton (DialogButtonType buttonType, const char text, OnClickListener listener)	void Sets a button for this dialog box.
OHOS::UIDialog::SetVisible (bool visible) override	void Sets whether a dialog box is visible.
OHOS::UIDigitalClock::UIDigitalClock ()	A default constructor used to create a UIDigitalClock instance.
OHOS::UIDigitalClock::~UIDigitalClock ()	virtual A destructor used to delete the UIDigitalClock instance.
OHOS::UIDigitalClock::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIDigitalClock::SetFontId (uint8_t fontId)	void Sets the dynamic font ID for this digital clock.
OHOS::UIDigitalClock::SetFont (const char *name, uint8_t size)	void Sets the dynamic font for this digital clock.
OHOS::UIDigitalClock::SetColor (ColorType color)	void Sets the font color for this digital clock.
OHOS::UIDigitalClock::SetDisplayMode (DisplayMode dm)	void Sets the display mode for this digital clock.
OHOS::UIDigitalClock::GetDisplayMode () const	DisplayMode Obtains the display mode of this digital clock.
OHOS::UIDigitalClock::DisplayLeadingZero (bool displayLeadingZero)	void Sets whether to add 0 before the hour of this digital clock.
OHOS::UIDigitalClock::SetOpacity (uint8_t opacity)	void Sets the opacity for this digital clock.
OHOS::UIDigitalClock::GetOpacity () const	uint8_t Obtains the opacity of this digital clock.
OHOS::UIDigitalClock::UpdateClock (bool clockInit) override	void Updates this digital clock.
OHOS::UIImageAnimatorView::UIImageAnimatorView ()	A constructor used to create a UIImageAnimatorView instance.
OHOS::UIImageAnimatorView::~UIImageAnimatorView ()	virtual A destructor used to delete the UIImageAnimatorView instance.
OHOS::UIImageAnimatorView::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIImageAnimatorView::SetImageAnimatorSrc (const char *imageSrc, uint8_t imageNum, uint16_t timeOfUpdate)	void Sets the images and speed for this animator.
OHOS::UIImageAnimatorView::SetImageAnimatorSrc (const char *imageSrc, uint8_t imageNum)	void Sets the images for this animator.
OHOS::UIImageAnimatorView::SetTimeOfUpdate (uint16_t timeOfUpdate)	void Sets the speed for this animator.
OHOS::UIImageAnimatorView::GetTimeOfUpdate () const	uint16_t Obtains the speed of this animator.
OHOS::UIImageAnimatorView::SetTimeOfPause (uint16_t timeOfPause)	void Sets the interval between two playbacks of an infinitely repeated animator.
OHOS::UIImageAnimatorView::GetTimeOfPause () const	uint16_t Obtains the interval between two playbacks of an infinitely repeated animator.
OHOS::UIImageAnimatorView::GetImageAnimatorSrc () const	const ImageAnimatorInfo * Obtains the image array of this frame animator.
OHOS::UIImageAnimatorView::GetImageAnimatorImageNum () const	uint8_t Obtains the number of images.
OHOS::UIImageAnimatorView::SetSizeFixed (bool fixed)	void Sets whether the image size is fixed to the view size.
OHOS::UIImageAnimatorView::IsSizeFixed () const	bool Checks whether the image size is fixed to the view size.
OHOS::UIImageAnimatorView::SetRepeat (bool repeat)	void Sets whether to play this animator for infinite times.
OHOS::UIImageAnimatorView::IsRepeat () const	bool Checks whether this animator is played for infinite times.
OHOS::UIImageAnimatorView::SetRepeatTimes (uint32_t times)	void Sets the playback times for this animator.
OHOS::UIImageAnimatorView::GetRepeatTimes () const	uint32_t Obtains the playback times.
OHOS::UIImageAnimatorView::GetState () const	uint8_t Obtains the current state of this animator.
OHOS::UIImageAnimatorView::SetReverse (bool reverse)	void Sets the playback sequence for this animator.
OHOS::UIImageAnimatorView::IsReverse () const	bool Obtains the playback sequence of this animator.
OHOS::UIImageAnimatorView::Start ()	void Starts this animator.
OHOS::UIImageAnimatorView::Stop (bool needReset=true)	void Stops this animator.
OHOS::UIImageAnimatorView::Pause ()	void Pauses this animator at the current image.
OHOS::UIImageAnimatorView::Resume ()	void Resumes this animator from the current image.
OHOS::UIImageAnimatorView::AnimatorStopListener::~AnimatorStopListener ()	virtual A destructor used to delete an AnimatorStopListener instance.
OHOS::UIImageAnimatorView::AnimatorStopListener::OnAnimatorStop (UIView &view)	virtual void Called when this animator stops.
OHOS::UIImageAnimatorView::SetAnimatorStopListener (AnimatorStopListener *listener)	void Sets the listener for the stop of this animator.
OHOS::UIImageView::UIImageView ()	A default constructor used to create a UIImageView instance.
OHOS::UIImageView::~UIImageView ()	virtual A destructor used to delete the UIImageView instance.
OHOS::UIImageView::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIImageView::GetWidth () override	int16_t Obtains the width of this image view.
OHOS::UIImageView::GetHeight () override	int16_t Obtains the height of this image view.
OHOS::UIImageView::OnPreDraw (const Rect &invalidatedArea) override	bool Checks whether this image view needs to be covered to optimize the drawing process.
OHOS::UIImageView::OnDraw (const Rect &invalidatedArea) override	void Draws this image view.
OHOS::UIImageView::SetSrc (const char *src)	void Sets the image path.
OHOS::UIImageView::SetSrc (const ImageInfo *src)	void Sets the image information.
OHOS::UIImageView::SetAutoEnable (bool enable)	void Sets whether the image view size needs to be adaptive to the image size.
OHOS::UIImageView::SetBlurLevel (BlurLevel level)	void Sets the blur level for this image when it is rotated or scaled.
OHOS::UIImageView::GetBlurLevel () const	BlurLevel Obtains the blur level of this image when it is rotated or scaled.
OHOS::UIImageView::SetTransformAlgorithm (TransformAlgorithm algorithm)	void Sets the algorithm used for image rotation and scaling.
OHOS::UIImageView::GetTransformAlgorithm () const	TransformAlgorithm Obtains the algorithm used for image rotation and scaling.
OHOS::UIImageView::GetPath () const	const char * 获取图片路径
OHOS::UIImageView::GetImageInfo () const	const ImageInfo * 获取图片信息
OHOS::UIImageView::GetSrcType () const	uint8_t 获取图片类型
OHOS::UILabel::UILabel ()	A constructor used to create a UILabel instance.
OHOS::UILabel::~UILabel ()	virtual A destructor used to delete the UILabel instance.
OHOS::UILabel::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UILabel::GetWidth () override	int16_t Obtains the width of this label.
OHOS::UILabel::GetHeight () override	int16_t Obtains the height of this label.
OHOS::UILabel::OnPreDraw (const Rect &invalidatedArea) override	bool Checks whether this label needs to be covered before drawing it.
OHOS::UILabel::OnDraw (const Rect &invalidatedArea) override	void Draws this label.
OHOS::UILabel::SetText (const char *text)	void Sets the text content for this label.
OHOS::UILabel::GetText () const	const char * Obtains the text of this label.
OHOS::UILabel::SetLineBreakMode (const uint8_t lineBreakMode)	void Sets the line break mode for this text.
OHOS::UILabel::GetLineBreakMode () const	uint8_t Obtains the line break mode of this text.
OHOS::UILabel::SetTextColor (ColorType color)	void Sets the color for this text.
OHOS::UILabel::GetTextColor () const	ColorType Obtains the color of this text.
OHOS::UILabel::SetAlign (UITextLanguageAlignment horizontalAlign, UITextLanguageAlignment verticalAlign=TEXT_ALIGNMENT_TOP)	void Sets the alignment mode for this text.
OHOS::UILabel::GetHorAlign () const	UITextLanguageAlignment Obtains the horizontal alignment mode.
OHOS::UILabel::GetVerAlign () const	UITextLanguageAlignment Obtains the vertical alignment mode.
OHOS::UILabel::SetDirect (UITextLanguageDirect direct)	void Sets the direction for this text.
OHOS::UILabel::GetDirect () const	UITextLanguageDirect Obtains the direction of this text.
OHOS::UILabel::SetFontId (uint8_t fontId)	void Sets the font ID for this label.
OHOS::UILabel::GetFontId () const	uint8_t Obtains the font ID composed of font name and size.
OHOS::UILabel::SetFont (const char *name, uint8_t size)	void Sets the font for this label.
OHOS::UILabel::SetRollSpeed (uint16_t speed)	void Sets the scroll speed for this text.
OHOS::UILabel::GetTextWidth ()	uint16_t Obtains the width of this text.
OHOS::UILabel::GetTextHeight ()	uint16_t Obtains the height of this text.
OHOS::UILabel::SetRollStartPos (int16_t pos)	void Sets the position where this text starts to roll.
OHOS::UILabel::GetRollStartPos () const	int16_t Obtains the position where this text starts to roll.
OHOS::UILabel::SetWidth (int16_t width) override	void Sets the width for this label.
OHOS::UILabel::SetHeight (int16_t height) override	void Sets the height for this label.
OHOS::UILabel::SetTextRotation (LabelRotateDegree angle)	void Sets the clockwise rotation angle for this text.
OHOS::UILabel::GetTextRotation () const	LabelRotateDegree Obtains the clockwise rotation degree of this text.
OHOS::UILabel::GetTextRotateDegree () const	uint16_t Obtains the number of text rotation degrees.
OHOS::UILabelButton::UILabelButton ()	A constructor used to create a UILabelButton instance.
OHOS::UILabelButton::~UILabelButton ()	virtual A destructor used to delete the UILabelButton instance.
OHOS::UILabelButton::OnDraw (const Rect &invalidatedArea) override	void Draws a label button.
OHOS::UILabelButton::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UILabelButton::SetText (const char *text)	void Sets the text for this label button.
OHOS::UILabelButton::GetText () const	const char * Obtains the text of this label button.
OHOS::UILabelButton::SetLablePosition (int16_t x, int16_t y)	void Sets the position for this label relative to the button holding it.
OHOS::UILabelButton::GetLabelPosition () const	Point Obtains the position of this label relative to the button holding it.
OHOS::UILabelButton::SetAlign (UITextLanguageAlignment align)	void Sets the alignment mode for this text.
OHOS::UILabelButton::GetAlign () const	UITextLanguageAlignment Obtains the alignment mode of this text.
OHOS::UILabelButton::SetDirect (UITextLanguageDirect direct)	void Sets the direction for this text.
OHOS::UILabelButton::GetDirect () const	UITextLanguageDirect Obtains the direction of this text.
OHOS::UILabelButton::SetLabelStyle (Style &labelStyle)	void Sets the style for this label.
OHOS::UILabelButton::SetLabelStyle (uint8_t key, int64_t value)	void Sets a style for this label.
OHOS::UILabelButton::GetLabelStyle () const	const Style & Obtains the style of this label.
OHOS::UILabelButton::GetLabelStyle (uint8_t key) const	int64_t Obtains the value of a style of this label.
OHOS::UILabelButton::SetTextColor (ColorType color)	void Sets the color for this text.
OHOS::UILabelButton::SetFont (const char *name, uint8_t size)	void Sets the font for this text.
OHOS::UILabelButton::SetFontId (uint8_t fontId)	void Sets the font ID.
OHOS::UILabelButton::GetFontId () const	uint8_t Obtains the font ID.
OHOS::ListScrollListener::ListScrollListener ()	A constructor used to create a ListScrollListener instance with the default state SCROLL_STATE_STOP.
OHOS::ListScrollListener::~ListScrollListener ()	virtual A destructor used to delete the ListScrollListener instance.
OHOS::ListScrollListener::OnScrollStart (int16_t index, UIView *view)	virtual void Called when a scroll starts.
OHOS::ListScrollListener::OnScrollEnd (int16_t index, UIView *view)	virtual void Called when a scroll ends.
OHOS::ListScrollListener::OnItemSelected (int16_t index, UIView *view)	virtual void Called when a new child view is selected at the preset position as this list scrolls. For details about how to set the position, see SetSelectPosition.
OHOS::ListScrollListener::GetScrollState () const	uint8_t Obtains the scroll state of this list.
OHOS::UIList::UIList ()	A constructor used to create a UIList instance in the vertical direction.
OHOS::UIList::UIList (uint8_t direction)	A constructor used to create a UIList instance in the specified direction.
OHOS::UIList::~UIList ()	virtual A destructor used to delete the UIList instance.
OHOS::UIList::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIList::OnDragEvent (const DragEvent &event) override	bool Called when the view is being dragged.
OHOS::UIList::OnDragEndEvent (const DragEvent &event) override	bool Called when the view stops dragging.
OHOS::UIList::OnPressEvent (const PressEvent &event) override	void Called when the view is pressed.
OHOS::UIList::SetAdapter (AbstractAdapter *adapter)	void Sets the adapter for this list. The content of this list is initialized when the adapter is set.
OHOS::UIList::MoveChildByOffset (int16_t x, int16_t y) override	virtual void Moves the position of all child views.
OHOS::UIList::ScrollTo (uint16_t index)	void Scrolls to change the index of the first row or column of the current view.
OHOS::UIList::ScrollBy (int16_t distance)	void Scrolls the content in this list.
OHOS::UIList::SetStartIndex (uint16_t index)	void Sets the start index for this list.
OHOS::UIList::GetStartIndex () const	uint16_t Obtains the start index of this list. The default value is 0.
OHOS::UIList::SetLoopState (bool state)	void Sets the loop state for this list, in which a loop scroll is possible since the top and bottom of the list are connected together.
OHOS::UIList::GetLoopState () const	bool Checks whether this list is in a loop state.
OHOS::UIList::SetSelectPosition (uint16_t position)	void Sets the position where a child view is selected as this list scrolls.
OHOS::UIList::GetSelectView ()	UIView * Obtains the child view being selected at the preset position.
OHOS::UIList::SetScrollStateListener (ListScrollListener *scrollListener)	void Sets the listener that contains a callback to be invoked when a child view is selected as this list scrolls.
OHOS::UIList::RefreshList ()	void Refreshes this list. The number of child views in the current view is fixed and the positions of those reserved child views as this list scrolls remain unchanged.
OHOS::UIList::EnableAutoAlign (bool state)	void Sets the automatic alignment state for this list. When a scroll stops, a child view is selected and its position is automatically aligned with the preset position.
OHOS::UIList::RemoveAll () override	void Removes all child views.
OHOS::UIPicker::UIPicker ()	A constructor used to create a UIPicker instance.
OHOS::UIPicker::~UIPicker ()	virtual A destructor used to delete the UIPicker instance.
OHOS::UIPicker::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIPicker::OnPreDraw (const Rect &invalidatedArea) override	bool Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process.
OHOS::UIPicker::SetValues (const char *value[], uint16_t count)	bool Sets dynamic text data in the picker by using a string array.
OHOS::UIPicker::SetValues (int16_t start, int16_t end)	bool Sets the numeric data in the picker by using a given numeric range.
OHOS::UIPicker::ClearValues ()	virtual void Clears all values in the picker.
OHOS::UIPicker::SetFontId (uint8_t backgroundFontId, uint8_t highlightFontId)	void Sets the font IDs of dynamic text, which is the string array set through SetValues.
OHOS::UIPicker::GetBackgroundFontId () const	uint16_t Obtains the font ID of the background text.
OHOS::UIPicker::GetHighlightFontId () const	uint16_t Obtains the font ID of the highlighted text.
OHOS::UIPicker::SetTextColor (ColorType backgroundColor, ColorType highlightColor)	void Sets the text color.
OHOS::UIPicker::GetBackgroundTextColor () const	ColorType Obtains the color of the background text.
OHOS::UIPicker::GetHighlightTextColor () const	ColorType Obtains the color of the highlighted text.
OHOS::UIPicker::SetSelected (uint16_t index)	bool Sets the index of the item currently selected in the picker.
OHOS::UIPicker::GetSelected () const	uint16_t Obtains the index of the item currently selected in the picker.
OHOS::UIPicker::SetItemHeight (int16_t height)	void Sets the height of each item in the picker.
OHOS::UIPicker::SetWidth (int16_t width) override	void Sets the width for this component.
OHOS::UIPicker::SetHeight (int16_t height) override	void Sets the height for this component.
OHOS::UIPicker::SetLoopState (bool state)	void Sets whether a picker can slide cyclically.
OHOS::UIPicker::SelectedListener::SelectedListener ()	A constructor used to create a SelectedListener instance.
OHOS::UIPicker::SelectedListener::~SelectedListener ()	virtual A destructor used to delete the SelectedListener instance.
OHOS::UIPicker::SelectedListener::OnPickerStoped (UIPicker &picker)	virtual void Called when an item is selected after sliding stops. This function is implemented by applications.
OHOS::UIPicker::RegisterSelectedListener (SelectedListener *pickerListener)	void Registers a listener for a selected event.
OHOS::UIPicker::SetDirect (UITextLanguageDirect direct)	void Sets the text direction.
OHOS::UIPicker::SetTextFormatter (TextFormatter *formatter)	void Sets the text formatter.
OHOS::UIRadioButton::UIRadioButton ()	A constructor used to create a UIRadioButton instance.
OHOS::UIRadioButton::UIRadioButton (const char *name)	Default constructor.
OHOS::UIRadioButton::~UIRadioButton ()	virtual A destructor used to delete the UIRadioButton instance.
OHOS::UIRadioButton::GetViewType () const override	UIViewType Obtains the component type.
OHOS::UIRadioButton::OnPreDraw (const Rect &invalidatedArea) override	bool Do something before draw, this function will be invoked mainly to check if this view need to cover invalidate area so render manager can decide which layer to draw firstly.
OHOS::UIRadioButton::OnClickEvent (const ClickEvent &event) override	void Executes the click event action OnClickEvent will reverse the selected state of checkbox. Example: If the check box is selected, the checkbox status is changed to Unselected after the click action is taken.
OHOS::UIRadioButton::SetName (const char *name)	void Sets the name for this radio button.
OHOS::UIRadioButton::GetName () const	const char * Obtains the name of this radio button.
OHOS::UIRepeatButton::UIRepeatButton ()	A constructor used to create a UIRepeatButton instance.
OHOS::UIRepeatButton::~UIRepeatButton ()	virtual A destructor used to delete the UIRepeatButton instance.
OHOS::UIRepeatButton::GetViewType () const override	UIViewType Obtains the component type.
OHOS::UIRepeatButton::SetInterval (uint16_t interval)	virtual void Sets the interval between two consecutive click events.
OHOS::UIRepeatButton::GetInterval () const	virtual uint16_t Obtains the interval between two consecutive click events.
OHOS::UIRepeatButton::OnClickEvent (const ClickEvent &event) override	virtual void The action of click event.
OHOS::UIRepeatButton::OnReleaseEvent (const ReleaseEvent &event) override	virtual void The action of release event.
OHOS::UIRepeatButton::OnLongPressEvent (const LongPressEvent &event) override	virtual bool The action of long press event.
OHOS::UIRepeatButton::HandleTickEvent ()	void handle the event of long pressing.
OHOS::UIScrollView::OnScrollListener::OnScrollListener ()	A constructor used to create an OnScrollListener instance with the default scroll state SCROLL_STATE_STOP.
OHOS::UIScrollView::OnScrollListener::~OnScrollListener ()	virtual A destructor used to delete the OnScrollListener instance.
OHOS::UIScrollView::OnScrollListener::OnScrollStart ()	virtual void Called when a scroll starts.
OHOS::UIScrollView::OnScrollListener::OnScrollEnd ()	virtual void Called when a scroll ends.
OHOS::UIScrollView::OnScrollListener::GetScrollState () const	uint8_t Obtains the scroll state of this view.
OHOS::UIScrollView::UIScrollView ()	A constructor used to create a UIScrollView instance, with both horizontal and vertical scrolls supported.
OHOS::UIScrollView::~UIScrollView ()	virtual A destructor used to delete the UIScrollView instance.
OHOS::UIScrollView::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIScrollView::OnPostDraw (const Rect &invalidatedArea) override	void Called after a view is drawn.
OHOS::UIScrollView::OnDragEvent (const DragEvent &event) override	bool Called when the view is being dragged.
OHOS::UIScrollView::OnDragEndEvent (const DragEvent &event) override	bool Called when the view stops dragging.
OHOS::UIScrollView::OnPressEvent (const PressEvent &event) override	void Called when the view is pressed.
OHOS::UIScrollView::ScrollBy (int16_t xDistance, int16_t yDistance)	void Scrolls the content of this view.
OHOS::UIScrollView::SetScrollbarWidth (uint8_t width)	void Sets the width for this scroll bar.
OHOS::UIScrollView::SetHorizontalScrollState (bool state)	void Sets whether a horizontal scroll is enabled.
OHOS::UIScrollView::GetHorizontalScrollState () const	bool Checks whether a horizontal scroll is enabled.
OHOS::UIScrollView::SetVerticalScrollState (bool state)	void Sets whether a vertical scroll is enabled.
OHOS::UIScrollView::GetVerticalScrollState () const	bool Checks whether a vertical scroll is enabled.
OHOS::UIScrollView::SetXScrollBarVisible (bool state)	void Sets whether the horizontal scroll bar is visible.
OHOS::UIScrollView::SetYScrollBarVisible (bool state)	void Sets whether the vertical scroll bar is visible.
OHOS::UIScrollView::RegisterScrollListener (OnScrollListener *scrollListener)	void Registers a listener that contains a callback to be invoked upon scroll state changes.
OHOS::UISlider::UISlider ()	A constructor used to create a UISlider instance.
OHOS::UISlider::~UISlider ()	virtual A destructor used to delete the UISlider instance.
OHOS::UISlider::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UISlider::SetKnobWidth (int16_t width)	void Sets the width for this knob.
OHOS::UISlider::GetKnobWidth ()	int16_t Obtains the knob width.
OHOS::UISlider::SetImage (const ImageInfo backgroundImage, const ImageInfo foregroundImage, const ImageInfo *knobImage)	void Sets the images as pixel maps for this slider, including the background, foreground, and knob images.
OHOS::UISlider::SetImage (const char backgroundImage, const char foregroundImage, const char *knobImage)	void Sets the images for this slider, including the background, foreground, and knob images.
OHOS::UISlider::SetSliderColor (const ColorType backgroundColor, const ColorType foregroundColor, const ColorType knobColor)	void Sets the colors for this slider, including the background, foreground, and knob colors.
OHOS::UISlider::SetSliderRadius (int16_t backgroundRadius, int16_t foregroundRadius, int16_t knobRadius)	void Sets the corner radiuses for this slider, including the background, foreground, and knob corner radiuses.
OHOS::UISlider::SetKnobStyle (const Style &style)	void Sets the knob style.
OHOS::UISlider::SetKnobStyle (uint8_t key, int64_t value)	void Sets a knob style.
OHOS::UISlider::GetKnobStyle () const	const Style & Obtains the knob style.
OHOS::UISlider::GetKnobStyle (uint8_t key) const	int64_t Obtains the value of a knob style.
OHOS::UISlider::OnClickEvent (const ClickEvent &event) override	void Called when the view is clicked.
OHOS::UISlider::OnDragEvent (const DragEvent &event) override	bool Called when the view is being dragged.
OHOS::UISlider::OnDragEndEvent (const DragEvent &event) override	bool Called when the view stops dragging.
OHOS::UISlider::OnPreDraw (const Rect &invalidatedArea) override	bool Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process.
OHOS::UISlider::OnDraw (const Rect &invalidatedArea) override	void Called when a view is drawn.
OHOS::UISlider::UISliderEventListener::~UISliderEventListener ()	virtual A destructor used to delete the UISliderEventListener instance.
OHOS::UISlider::UISliderEventListener::OnChange (int16_t value)	virtual void Called when the slider is dragged or clicked. This is a virtual function, which needs your implementation.
OHOS::UISlider::UISliderEventListener::OnRelease (int16_t value)	virtual void Called when the slider is released. This is a virtual function, which needs your implementation.
OHOS::UISlider::SetSliderEventListener (UISliderEventListener *listener)	void Sets the listener for a slider change.
OHOS::UISurfaceView::UISurfaceView ()	A constructor used to create a UISurfaceView instance.
OHOS::UISurfaceView::~UISurfaceView ()	A destructor used to delete the UISurfaceView instance.
OHOS::UISurfaceView::GetSurface () const	Surface * Obtains the surface, which should be used together with the camera and video modules.
OHOS::UISurfaceView::SetPosition (int16_t x, int16_t y) override	void Sets the position for this view.
OHOS::UISurfaceView::SetPosition (int16_t x, int16_t y, int16_t width, int16_t height) override	void Sets the position and size for this view.
OHOS::UISurfaceView::Resize (int16_t width, int16_t height) override	void Adjusts the size of this view.
OHOS::UISurfaceView::SetX (int16_t x) override	void Sets the x-coordinate for this view.
OHOS::UISurfaceView::SetY (int16_t y) override	void Sets the y-coordinate for this view.
OHOS::UISurfaceView::SetWidth (int16_t width) override	void Sets the width for this view.
OHOS::UISurfaceView::SetHeight (int16_t height) override	void Sets the height for this view.
OHOS::UISurfaceView::SetVisible (bool visible) override	void Sets whether this view is visible.
OHOS::UISurfaceView::OnPreDraw (const Rect &invalidatedArea) override	bool Called before this view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so that the drawing process is optimized.
OHOS::UISurfaceView::OnDraw (const Rect &invalidatedArea) override	void Called when this view is drawn.
OHOS::UISwipeView::UISwipeView (uint8_t direction=HORIZONTAL)	A constructor used to create a UISwipeView instance.
OHOS::UISwipeView::~UISwipeView ()	virtual A destructor used to delete the UISwipeView instance.
OHOS::UISwipeView::GetViewType () const override	UIViewType Obtains the component type.
OHOS::UISwipeView::SetDirection (uint8_t direction)	void Sets the dragging direction.
OHOS::UISwipeView::GetDirection () const	uint8_t Obtains the dragging direction.
OHOS::UISwipeView::Add (UIView *view) override	void Adds a view.
OHOS::UISwipeView::Insert (UIView prevView, UIView insertView) override	void Inserts a view.
OHOS::UISwipeView::Remove (UIView *view) override	virtual void Deletes a view.
OHOS::UISwipeView::SetCurrentPage (uint16_t index, bool needAnimator=false)	void Sets the index for the current tab.
OHOS::UISwipeView::GetCurrentPage () const	uint16_t Obtains the current tab index.
OHOS::UISwipeView::GetCurrentView () const	UIView * Obtains the current view.
OHOS::UISwipeView::SetBlankSize (uint16_t size)	void Sets a blank size, as defined in DEFAULT_BLANK_SIZE.
OHOS::UISwipeView::OnDragEvent (const DragEvent &event) override	bool revice drag event, Switch to specified view when drag
OHOS::UISwipeView::OnDragEndEvent (const DragEvent &event) override	bool Called when the view stops dragging.
OHOS::UISwipeView::SetAnimatorTime (uint16_t time)	void Sets the time for the page being animated. The page will go beyond the blank during this time.
OHOS::UISwipeView::SetLoopState (bool loop)	void Sets whether the swipe view supports a cycle swipe.
OHOS::UISwipeView::GetViewByIndex (uint16_t index) const	UIView * Obtains a view based on its index.
OHOS::UISwipeView::GetOnSwipeListener ()	OnSwipeListener *& Obtains the listener set for swipe events.
OHOS::UISwipeView::SetOnSwipeListener (OnSwipeListener *onSwipeListener)	void Sets the listener that contains a callback to be invoked upon a swipe event.
OHOS::UISwipeView::MoveChildByOffset (int16_t xOffset, int16_t yOffset) override	void Moves the position of all child views.
OHOS::UITextureMapper::UITextureMapper ()	A constructor used to create a UITextureMapper instance.
OHOS::UITextureMapper::~UITextureMapper ()	virtual A destructor used to delete the UITextureMapper instance.
OHOS::UITextureMapper::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UITextureMapper::Start ()	void Starts this animator.
OHOS::UITextureMapper::SetRotateStart (int16_t start)	void Sets the start angle of rotation for this image.
OHOS::UITextureMapper::SetRotateEnd (int16_t end)	void Sets the end angle of rotation for this image.
OHOS::UITextureMapper::SetScaleStart (float start)	void Sets the start ratio for scaling this image.
OHOS::UITextureMapper::SetScaleEnd (float end)	void Sets the end ratio for scaling this image.
OHOS::UITextureMapper::SetDurationTime (uint16_t durationTime)	void Sets the duration for this animator, in milliseconds.
OHOS::UITextureMapper::SetDelayTime (uint16_t delayTime)	void Sets the delay time for this animator, in milliseconds.
OHOS::UITextureMapper::SetEasingFunc (EasingFunc easingFunc)	void Sets the easing function for this animator.
OHOS::UITextureMapper::Cancel ()	void Cancels this animator.
OHOS::UITextureMapper::Reset ()	void Displays the original image.
OHOS::UITextureMapper::SetPivot (int16_t x, int16_t y)	void Sets the coordinates of the rotation and scaling pivots for this image.
OHOS::UITextureMapper::AnimatorStopListener::~AnimatorStopListener ()	virtual A destructor used to delete an AnimatorStopListener instance.
OHOS::UITextureMapper::AnimatorStopListener::OnAnimatorStop (UIView &view)=0	virtual void Called when this animator stops. This is a pure virtual function, which needs your inheritance and implementation.
OHOS::UITextureMapper::SetAnimatorStopListener (AnimatorStopListener *listener)	void Sets the listener for the stop of this animator.
OHOS::UITimePicker::UITimePicker ()	A constructor used to create a UITimePicker instance.
OHOS::UITimePicker::~UITimePicker ()	virtual A destructor used to delete the UITimePicker instance.
OHOS::UITimePicker::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UITimePicker::SetSelected (const char *value)	bool Sets the time currently selected in the time picker.
OHOS::UITimePicker::GetSelectValue ()	const char * Obtains the time currently selected in the time picker.
OHOS::UITimePicker::GetSelectHour () const	const char * Obtains the hour currently selected in the time picker.
OHOS::UITimePicker::GetSelectMinute () const	const char * Obtains the minute currently selected in the time picker.
OHOS::UITimePicker::GetSelectSecond () const	const char * Obtains the second currently selected in the time picker.
OHOS::UITimePicker::SetItemHeight (int16_t height)	void Sets the height of each item in the time picker.
OHOS::UITimePicker::EnableSecond (bool state)	void Sets whether to enable seconds in the time picker.
OHOS::UITimePicker::SetTextStyle (uint8_t backgroundFontId, uint8_t highlightFontId, ColorType backgroundColor, ColorType highlightColor)	void Sets the text format in the time picker, including the font ID and color.
OHOS::UITimePicker::SetWidth (int16_t width) override	void Sets the width for the time picker.
OHOS::UITimePicker::SetHeight (int16_t height) override	void Sets the height for the time picker.
OHOS::UITimePicker::SelectedListener::SelectedListener ()	A constructor used to create a SelectedListener instance.
OHOS::UITimePicker::SelectedListener::~SelectedListener ()	A destructor used to delete the SelectedListener instance.
OHOS::UITimePicker::SelectedListener::OnTimePickerStoped (UITimePicker &picker)	virtual void Called when an item is selected after sliding stops. This function is implemented by applications.
OHOS::UITimePicker::RegisterSelectedListener (SelectedListener *timePickerListener)	void Registers a listener for a selected event.
OHOS::UIToggleButton::UIToggleButton ()	A constructor used to create a UIToggleButton instance.
OHOS::UIToggleButton::~UIToggleButton ()	virtual A destructor used to delete the UIToggleButton instance.
OHOS::UIToggleButton::GetViewType () const override	UIViewType Obtains the component type.
OHOS::UIToggleButton::SetState (bool state)	void Sets the state for this toggle button.
OHOS::UIToggleButton::GetState () const	bool Obtains the state of this toggle button.
OHOS::UIView::OnClickListener::OnClick (UIView &view, const ClickEvent &event)	virtual bool Called when a view is clicked.
OHOS::UIView::OnClickListener::~OnClickListener ()	virtual A destructor used to delete the OnClickListener instance.
OHOS::UIView::OnLongPressListener::OnLongPress (UIView &view, const LongPressEvent &event)	virtual bool Called when a view is long pressed.
OHOS::UIView::OnLongPressListener::~OnLongPressListener ()	virtual A destructor used to delete the OnLongPressListener instance.
OHOS::UIView::OnDragListener::OnDragStart (UIView &view, const DragEvent &event)	virtual bool Called when a view starts to drag.
OHOS::UIView::OnDragListener::OnDrag (UIView &view, const DragEvent &event)	virtual bool Called when a view is being dragged.
OHOS::UIView::OnDragListener::OnDragEnd (UIView &view, const DragEvent &event)	virtual bool Called when a view stops dragging.
OHOS::UIView::OnDragListener::~OnDragListener ()	virtual A destructor used to delete the OnDragListener instance.
OHOS::UIView::OnTouchListener::OnPress (UIView &view, const PressEvent &event)	virtual bool Called when a view is pressed.
OHOS::UIView::OnTouchListener::OnRelease (UIView &view, const ReleaseEvent &event)	virtual bool Called when a view is released.
OHOS::UIView::OnTouchListener::OnCancel (UIView &view, const CancelEvent &event)	virtual bool Called when a click event on a view is canceled.
OHOS::UIView::OnTouchListener::~OnTouchListener ()	virtual A destructor used to delete the OnTouchListener instance.
OHOS::UIView::UIView ()	A default constructor used to create an UIView instance.
OHOS::UIView::UIView (const char *id)	A constructor used to create an UIView instance.
OHOS::UIView::~UIView ()	virtual A destructor used to delete the UIView instance.
OHOS::UIView::OnPreDraw (const Rect &invalidatedArea)	virtual bool Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process.
OHOS::UIView::OnDraw (const Rect &invalidatedArea)	virtual void Called when a view is drawn.
OHOS::UIView::OnPostDraw (const Rect &invalidatedArea)	virtual void Called after a view is drawn.
OHOS::UIView::ReMeasure ()	virtual void Remeasures the view size.
OHOS::UIView::Invalidate ()	void Refreshes the invalidated area of the view.
OHOS::UIView::InvalidateRect (const Rect &invalidatedArea)	void Refreshes a view in a specified invalidated area.
OHOS::UIView::OnLongPressEvent (const LongPressEvent &event)	virtual bool Called when the view is long pressed.
OHOS::UIView::OnDragStartEvent (const DragEvent &event)	virtual bool Called when the view starts to drag.
OHOS::UIView::OnDragEvent (const DragEvent &event)	virtual bool Called when the view is being dragged.
OHOS::UIView::OnDragEndEvent (const DragEvent &event)	virtual bool Called when the view stops dragging.
OHOS::UIView::OnClickEvent (const ClickEvent &event)	virtual void Called when the view is clicked.
OHOS::UIView::OnPressEvent (const PressEvent &event)	virtual void Called when the view is pressed.
OHOS::UIView::OnReleaseEvent (const ReleaseEvent &event)	virtual void Called when the view is released.
OHOS::UIView::OnCancelEvent (const CancelEvent &event)	virtual void Called when a click event on the view is canceled.
OHOS::UIView::SetOnDragListener (OnDragListener *onDragListener)	void Sets a drag event listener for the view.
OHOS::UIView::GetOnDragListener ()	OnDragListener *& Obtains the drag event listener for the view.
OHOS::UIView::SetOnClickListener (OnClickListener *onClickListener)	void Sets a click event listener for the view.
OHOS::UIView::GetOnClickListener ()	OnClickListener *& Obtains the click event listener for the view.
OHOS::UIView::SetOnLongPressListener (OnLongPressListener *onLongPressListener)	void Sets a long-press event listener for the view.
OHOS::UIView::GetOnLongPressListener ()	OnLongPressListener *& Obtains the long-press event listener for the view.
OHOS::UIView::SetOnTouchListener (OnTouchListener *onTouchListener)	void Sets a touch event listener for the view.
OHOS::UIView::GetTouchListener ()	OnTouchListener *& Obtains the touch event listener for the view.
OHOS::UIView::GetTargetView (const Point &point, UIView **last)	virtual void Obtains the top-level view based on specified coordinates.
OHOS::UIView::SetParent (UIView *parent)	void Sets the parent view for the view.
OHOS::UIView::GetParent () const	UIView * Obtains the parent view of the view.
OHOS::UIView::SetNextSibling (UIView *sibling)	void Sets the next sibling view for the view.
OHOS::UIView::GetNextSibling () const	UIView * Obtains the next sibling view of the view.
OHOS::UIView::SetVisible (bool visible)	virtual void Sets whether the view is visible.
OHOS::UIView::IsVisible () const	bool Checks whether the view is visible.
OHOS::UIView::SetTouchable (bool touch)	void Sets whether the view is touchable.
OHOS::UIView::IsTouchable () const	bool Checks whether the view is touchable.
OHOS::UIView::SetDraggable (bool draggable)	void Sets whether the view is draggable.
OHOS::UIView::IsDraggable () const	bool Checks whether the view is draggable.
OHOS::UIView::SetDragParentInstead (bool dragParentInstead)	void Sets whether to transfer the drag event to the parent view for processing when the view is being dragged.
OHOS::UIView::IsDragParentInstead () const	bool Obtains whether the view transfers a drag event to the parent view for processing.
OHOS::UIView::GetRect () const	Rect Obtains the absolute rectangle area of the view. When the view has deformation such as rotation, the rectangle area is the intersection set of the absolute rectangle area and deformation matrix.
OHOS::UIView::GetVisibleRect () const	Rect Obtains the visible absolute rectangle area of the view.
OHOS::UIView::GetMaskedRect () const	Rect Obtains the valid absolute rectangle area of the view. The valid area refers to the area where the view can be displayed. Generally, the valid area is the same as the visible view area, but they may be different in the grid layout.
OHOS::UIView::GetOrigRect () const	Rect Obtains the absolute rectangle area of the view.
OHOS::UIView::GetContentRect ()	virtual Rect Obtains the content of the absolute rectangle area of the view. This area excludes padding.
OHOS::UIView::GetRelativeRect () const	Rect Obtains the rectangular area of the view relative to the parent view, that is, the rectangular area relative to the coordinates of the parent view.
OHOS::UIView::ResizeVisibleArea (int16_t x, int16_t y, int16_t width, int16_t height)	void Adjusts the size of the visible area. This operation may affect the final display size.
OHOS::UIView::SetWidth (int16_t width)	virtual void Sets the width for the view.
OHOS::UIView::GetWidth ()	virtual int16_t Obtains the width for the view.
OHOS::UIView::SetHeight (int16_t height)	virtual void Sets the height for the view.
OHOS::UIView::GetHeight ()	virtual int16_t Obtains the height for the view.
OHOS::UIView::Resize (int16_t width, int16_t height)	virtual void Adjusts the size of the view.
OHOS::UIView::SetX (int16_t x)	virtual void Sets the x-coordinate for the view.
OHOS::UIView::GetX () const	int16_t Obtains the x-coordinate for the view.
OHOS::UIView::SetY (int16_t y)	virtual void Sets the y-coordinate for the view.
OHOS::UIView::GetY () const	int16_t Obtains the y-coordinate for the view.
OHOS::UIView::SetPosition (int16_t x, int16_t y)	virtual void Sets the position for the view.
OHOS::UIView::SetPosition (int16_t x, int16_t y, int16_t width, int16_t height)	virtual void Adjusts the position and size of the view.
OHOS::UIView::IsViewGroup () const	bool Checks whether the view is a container view.
OHOS::UIView::SetIntercept (bool isIntercept)	void Sets whether to intercept the drag event. If intercepted, the view does not transfer the drag event to the parent view after local processing.
OHOS::UIView::SetTransformMap (const TransformMap &transMap)	void Sets the affine transformation matrix.
OHOS::UIView::GetTransformMap ()	TransformMap & Obtains an affine transformation matrix.
OHOS::UIView::GetChildById (const char *id) const	virtual UIView * Obtains the child view of a specified ID.
OHOS::UIView::SetViewId (const char *id)	void Sets the view ID.
OHOS::UIView::GetViewId () const	const char * Obtains the view ID.
OHOS::UIView::SetViewIndex (int16_t index)	void Sets the view index.
OHOS::UIView::GetViewIndex () const	int16_t Obtains the view index.
OHOS::UIView::GetViewType () const	virtual UIViewType Obtains the view type.
OHOS::UIView::LayoutChildren (bool neeInvalidate=false)	virtual void Lays out all child views according to the preset arrangement mode.
OHOS::UIView::LayoutCenterOfParent (int16_t xOffSet=0, int16_t yOffset=0)	void Lays out the view in the center of the parent view.
OHOS::UIView::LayoutLeftOfParent (int16_t offset=0)	void Lays out the view on the left of the parent view.
OHOS::UIView::LayoutRightOfParent (int16_t offset=0)	void Lays out the view on the right of the parent view.
OHOS::UIView::LayoutTopOfParent (int16_t offset=0)	void Lays out the view on the top of the parent view.
OHOS::UIView::LayoutBottomOfParent (int16_t offset=0)	void Lays out the view on the bottom of the parent view.
OHOS::UIView::AlignLeftToSibling (const char *id, int16_t offset=0)	void Aligns the view with the left of a sibling view.
OHOS::UIView::AlignRightToSibling (const char *id, int16_t offset=0)	void Aligns the view with the right of a sibling view.
OHOS::UIView::AlignTopToSibling (const char *id, int16_t offset=0)	void Aligns the view with the top of a sibling view.
OHOS::UIView::AlignBottomToSibling (const char *id, int16_t offset=0)	void Aligns the view with the bottom of a sibling view.
OHOS::UIView::AlignHorCenterToSibling (const char *id, int16_t offset=0)	void Aligns the view with the center of a sibling view in the x-axis.
OHOS::UIView::AlignVerCenterToSibling (const char *id, int16_t offset=0)	void Aligns the view with the center of a sibling view in the y-axis.
OHOS::UIView::LayoutLeftToSibling (const char *id, int16_t offset=0)	void Lays out the view on the left of a sibling view.
OHOS::UIView::LayoutRightToSibling (const char *id, int16_t offset=0)	void Lays out the view on the right of a sibling view.
OHOS::UIView::LayoutTopToSibling (const char *id, int16_t offset=0)	void Lays out the view on the above of a sibling view.
OHOS::UIView::LayoutBottomToSibling (const char *id, int16_t offset=0)	void Lays out the view on the below of a sibling view.
OHOS::UIView::SetStyle (Style &style)	virtual void Sets the view style.
OHOS::UIView::SetStyle (uint8_t key, int64_t value)	virtual void Sets a style.
OHOS::UIView::GetStyle (uint8_t key) const	virtual int64_t Obtains the value of a style.
OHOS::UIView::GetStyleConst () const	const Style & Obtains the view style. This function applies to scenarios where the style does not need to be modified, which saves memory.
OHOS::UIViewGroup::UIViewGroup ()	A default constructor used to create a UIViewGroup instance.
OHOS::UIViewGroup::~UIViewGroup ()	virtual A destructor used to delete the UIViewGroup instance.
OHOS::UIViewGroup::GetViewType () const override	UIViewType Obtains the view type.
OHOS::UIViewGroup::Add (UIView *view)	virtual void Adds a child view.
OHOS::UIViewGroup::Insert (UIView prevView, UIView insertView)	virtual void Inserts a new child view behind the current one.
OHOS::UIViewGroup::Remove (UIView *view)	virtual void Removes a child view.
OHOS::UIViewGroup::RemoveAll ()	virtual void Removes all child views.
OHOS::UIViewGroup::GetTargetView (const Point &point, UIView **last) override	virtual void Obtains the target child view that is visible and can respond to touch events based on given coordinates.
OHOS::UIViewGroup::MoveChildByOffset (int16_t x, int16_t y)	virtual void Moves all child views.
OHOS::UIViewGroup::GetChildrenHead () const	UIView * Obtains the first child view in this view group.
OHOS::UIViewGroup::GetChildrenTail () const	UIView * Obtains the last child view in this view group.
OHOS::UIViewGroup::SetDisallowIntercept (bool flag)	void Sets whether this view group is intercepted upon touch events.
OHOS::UIViewGroup::GetChildById (const char *id) const override	UIView * Obtains the target child view with a specified ID.
OHOS::UIViewGroup::SetAutoSize (bool state)	void Sets whether the size of this view group is adaptive to that of all child views.
OHOS::UIViewGroup::GetAllChildRelativeRect () const	Rect Obtains the rectangle area of a new view group after being adaptive to the size of all child views.
OHOS::UIViewGroup::OnChildChanged ()	virtual void Performs operations needed after a child view is added or removed.
OHOS::UIDumpDomTree::GetInstance ()	static UIDumpDomTree * Obtains an instance in singleton pattern.
OHOS::UIDumpDomTree::DumpDomTree (const char id, const char path)	bool Exports information about a DOM tree starting from a specified DOM node and saves the information to a specified path.
OHOS::UIDumpDomTree::DumpDomTree (const char *id)	bool Exports information about a DOM tree starting from a specified DOM node and saves the information to the default path. The default path is DEFAULT_DUMP_DOM_TREE_PATH.
OHOS::UIDumpDomTree::DumpDomNode (const char *id)	char * Exports information about a specified DOM node.
OHOS::CancelEvent::CancelEvent (const Point &pos)	A constructor used to create a CancelEvent instance.
OHOS::CancelEvent::~CancelEvent ()	virtual A destructor used to delete the CancelEvent instance.
OHOS::ClickEvent::ClickEvent (const Point &pos)	A constructor used to create a ClickEvent instance.
OHOS::ClickEvent::~ClickEvent ()	virtual A destructor used to delete the ClickEvent instance.
OHOS::DragEvent::DragEvent (const Point &newPos, const Point &lastPos, const Point &totalLen)	A constructor used to create a DragEvent instance.
OHOS::DragEvent::~DragEvent ()	virtual A destructor used to delete the DragEvent instance.
OHOS::DragEvent::GetLastPoint () const	const Point & Obtains the coordinates of the last position in the drag event.
OHOS::DragEvent::GetStartPoint () const	const Point & Obtains the start coordinates in the drag event.
OHOS::DragEvent::SetPreLastPoint (const Point &preLastPos)	void Sets the coordinates of the stay position before the last position in the drag event.
OHOS::DragEvent::GetPreLastPoint () const	const Point & Obtains the coordinates of the stay position before the last position in the drag event.
OHOS::DragEvent::GetDragDirection () const	uint8_t Obtains the direction in the drag event.
OHOS::DragEvent::GetDeltaX () const	int16_t Obtains the difference between the current position and the last position of the view in the x-axis.
OHOS::DragEvent::GetDeltaY () const	int16_t Obtains the difference between the current position and the last position of the view in the y-axis.
OHOS::Event::Event ()	A default constructor used to create an Event instance.
OHOS::Event::Event (const Point &curPos)	A constructor used to create an Event instance.
OHOS::Event::~Event ()	virtual A destructor used to delete the Event instance.
OHOS::Event::GetCurrentPos () const	const Point & Obtains the position where an event occurs.
OHOS::Event::GetTimeStamp () const	const TimeType & Obtains the timestamp when an event occurs.
OHOS::Event::SetTimeStamp (const TimeType &timeStamp)	void Sets the timestamp when an event occurs.
OHOS::KeyEvent::KeyEvent (uint16_t keyId, uint16_t state)	A constructor used to create a KeyEvent instance.
OHOS::KeyEvent::~KeyEvent ()	A destructor used to delete the KeyEvent instance.
OHOS::KeyEvent::GetKeyId () const	uint16_t Obtains the key ID.
OHOS::KeyEvent::GetState () const	uint16_t Obtains the key state.
OHOS::LongPressEvent::LongPressEvent (const Point &pos, const TimeType &timeStamp)	A constructor used to create a LongPressEvent instance.
OHOS::LongPressEvent::~LongPressEvent ()	virtual A destructor used to delete the LongPressEvent instance.
OHOS::PressEvent::PressEvent (const Point &pos)	A constructor used to create a PressEvent instance.
OHOS::PressEvent::~PressEvent ()	virtual A destructor used to delete the PressEvent instance.
OHOS::ReleaseEvent::ReleaseEvent (const Point &pos)	A constructor used to create a ReleaseEvent instance.
OHOS::ReleaseEvent::~ReleaseEvent ()	virtual A destructor used to delete the ReleaseEvent instance.
OHOS::VirtualDeviceEvent::VirtualDeviceEvent (uint16_t type, uint16_t value)	A constructor used to create a VirtualDeviceEvent instance.
OHOS::VirtualDeviceEvent::~VirtualDeviceEvent ()	A destructor used to delete the VirtualDeviceEvent instance.
OHOS::VirtualDeviceEvent::GetType () const	uint16_t Obtains the type of the virtual device.
OHOS::VirtualDeviceEvent::GetState () const	uint16_t Obtains the state of the virtual event.
OHOS::Line::Line ()	The default constructor used to create a Line instance.
OHOS::Line::Line (const Vector2< int16_t > &a, const Vector2< int16_t > &b)	A constructor used to create a Line instance.
OHOS::Line::Line (int16_t x1, int16_t y1, int16_t x2, int16_t y2)	A constructor used to create a Line instance.
OHOS::Line::~Line ()	A destructor used to delete the Line instance.
OHOS::Line::operator[] (uint8_t index)	Vector2< int16_t > & Obtains the start or end point of the line based on the value of index.
OHOS::Line::operator[] (uint8_t index) const	const Vector2< int16_t > Obtains the start or end point of the line based on the value of index.
OHOS::Polygon::Polygon ()	The default constructor used to create a Polygon instance.
OHOS::Polygon::Polygon (const Rect &rect)	A constructor used to construct a Polygon instance based on a rectangle.
OHOS::Polygon::Polygon (const Vector2< int16_t > *vertexes, const uint8_t vertexNum)	A constructor used to create a Polygon instance based on the vertex coordinates and the number of coordinates.
OHOS::Polygon::~Polygon ()	A destructor used to delete the Polygon instance.
OHOS::Polygon::MakeAABB () const	Rect Obtains the minimum rectangle that can contain the polygon. All vertices of the polygon are inside this rectangle.
OHOS::Polygon::GetVertexNum () const	uint8_t Obtains the number of vertices of the polygon.
OHOS::Polygon::SetVertexNum (uint8_t vertexNum)	void Sets the number of vertices of a polygon.
OHOS::Intersect (const Line &a, const Line &b, Vector2< int16_t > &out)	bool Checks whether line segment a and line segment b intersect, and returns the intersection point (if available).
OHOS::IsIntersect (const Line &a, const Line &b)	bool Chekcs whether line segment a and line segment b intersect.
OHOS::Clip (Polygon &poly, const Line &line)	void Clips a polygon by using a line segment.
OHOS::SuthHodgClip (const Rect &clipRect, const Polygon &polygon)	Polygon Implements Sutherland-Hodgman, an algorithm used for clipping polygons.
OHOS::Clip (const Line &line, const Polygon &poly, Vector2< int16_t > pOut, uint8_t pNum)	void Clips a polygon by using a line segment and obtains the intersections.
OHOS::Vector2< T >::Vector2 ()	A constructor used to create a Vector2 instance.
OHOS::Vector2< T >::Vector2 (T x, T y)	A constructor used to create a Vector2 instance based on the X and Y coordinates.
OHOS::Vector2< T >::~Vector2 ()	A destructor used to delete the Vector2 instance.
OHOS::Vector2< T >::Dot (const Vector2< T > &other) const	T Calculates the scalar product of the two-dimensional vector and another two-dimensional vector.
OHOS::Vector2< T >::Cross (const Vector2< T > &other) const	T Calculates the cross product of the two-dimensional vector and another two-dimensional vector.
OHOS::Vector3< T >::Vector3 ()	A constructor used to create a Vector3 instance.
OHOS::Vector3< T >::Vector3 (T x, T y, T z)	Defines a Vector3 instance and initializes the values of x, y, and z.
OHOS::Vector3< T >::~Vector3 ()	A destructor used to delete the Vector3 instance.
OHOS::Matrix3< T >::Matrix3 ()	Defines a Matrix3 instance and initializes the 3 x 3 matrix data.
OHOS::Matrix3< T >::Matrix3 (T m00, T m01, T m02, T m10, T m11, T m12, T m20, T m21, T m22)	Defines a Matrix3 instance and initializes the 3 x 3 matrix data.
OHOS::Matrix3< T >::~Matrix3 ()	A destructor used to delete the Matrix3 instance.
OHOS::Matrix3< T >::GetData () const	const T * Obtains the 3 x 3 matrix data.
OHOS::Matrix3< T >::Determinant () const	T Obtains the determinant of the matrix.
OHOS::Matrix3< T >::Inverse () const	Matrix3 Obtains the inverse matrix.
OHOS::Matrix3< T >::Rotate (T angle, const Vector2< T > &pivot)	static Matrix3 Obtains a rotation matrix. After a matrix is rotated, its data is shifted leftwards by 15 bits. Therefore, the result data needs to be shifted rightwards by 15 bits.
OHOS::Matrix3< T >::Scale (const Vector2< T > &scale, const Vector2< T > &fixed)	static Matrix3 Obtains the scaling matrix. After a matrix is scaled, its data is shifted leftwards by 8 bits. Therefore, the result data needs to be shifted rightwards by 8 bits.
OHOS::Matrix3< T >::Translate (const Vector2< T > &trans)	static Matrix3< T > Obtains a matrix translation.
OHOS::HeapBase::operator new (size_t size)	void * Overrides the new function.
OHOS::HeapBase::operator delete (void *p)	void Overrides the delete function.
OHOS::FlexLayout::FlexLayout ()	A default constructor used to create a FlexLayout instance.
OHOS::FlexLayout::~FlexLayout ()	virtual A destructor used to delete the FlexLayout instance.
OHOS::FlexLayout::SetMajorAxisAlign (const AlignType &align)	void Sets the alignment mode of the primary axis (the axis where the layout direction is located). The child views in the layout are placed in this mode in the direction of the primary axis.
OHOS::FlexLayout::SetSecondaryAxisAlign (const AlignType &align)	void Sets the alignment mode of the secondary axis (the axis perpendicular to the set layout direction).
OHOS::FlexLayout::SetFlexWrap (uint8_t wrap)	void Sets whether to support word wrap.
OHOS::FlexLayout::LayoutChildren (bool needInvalidate=false) override	virtual void Lays out all child views according to the preset arrangement mode.
OHOS::GridLayout::GridLayout ()	A default constructor used to create a GridLayout instance.
OHOS::GridLayout::~GridLayout ()	virtual A destructor used to delete the GridLayout instance.
OHOS::GridLayout::SetRows (const uint16_t &rows)	void Sets the number of rows in a grid.
OHOS::GridLayout::SetCols (const uint16_t &cols)	void Sets the number of columns in a grid.
OHOS::GridLayout::LayoutChildren (bool needInvalidate=false) override	virtual void Lays out all child views according to the preset arrangement mode.
OHOS::Layout::Layout ()	A default constructor used to create a Layout instance.
OHOS::Layout::~Layout ()	virtual A destructor used to delete the Layout instance.
OHOS::Layout::SetLayoutDirection (const DirectionType &direction)	void Sets the layout direction.
OHOS::List< T >::List ()	A default constructor used to create a List instance. The initial size is 0.
OHOS::List< T >::~List ()	virtual A destructor used to delete the List instance.
OHOS::List< T >::Front () const	const T Obtains the head node data of a linked list.
OHOS::List< T >::Back () const	const T Obtains the tail node data of a linked list.
OHOS::List< T >::PushBack (T data)	void Inserts data at the end of a linked list.
OHOS::List< T >::PushFront (T data)	void Inserts data at the start of a linked list.
OHOS::List< T >::PopBack ()	void Pops up a data record at the end of a linked list.
OHOS::List< T >::PopFront ()	void Pops up a data record at the start of a linked list.
OHOS::List< T >::Insert (ListNode< T > *node, T data)	void Inserts data before a specified node, which follows the inserted data node.
OHOS::List< T >::Remove (ListNode< T > *node)	void Deletes a data node.
OHOS::List< T >::Clear ()	void Deletes all nodes from a linked list.
OHOS::List< T >::Head () const	ListNode< T > * Obtains the head node address of a linked list.
OHOS::List< T >::Tail () const	ListNode< T > * Obtains the tail node address of a linked list.
OHOS::List< T >::Begin () const	ListNode< T > * Obtains the head node address of a linked list.
OHOS::List< T >::End () const	const ListNode< T > * Obtains the end node address of a linked list.
OHOS::List< T >::Next (const ListNode< T > *node) const	ListNode< T > * Obtains the address of the node following the specified node.
OHOS::List< T >::IsEmpty () const	bool Checks whether a linked list is empty.
OHOS::List< T >::Size () const	uint16_t Obtains the size of a linked list.
OHOS::ImageCacheMalloc (ImageInfo &info)	void * Applies for the image cache memory. You can customize the memory area when loading image resources.
OHOS::ImageCacheFree (ImageInfo &info)	void Releases the image cache memory.
OHOS::UIMalloc (uint32_t size)	void * Applies for memory for the graphics module. You can implement this function to override the malloc and new functions.
OHOS::UIFree (void *buffer)	void Releases memory for the graphics module. You can implement this function to override the free and delete functions.
OHOS::Rect::Rect ()	A constructor used to create a Rect instance.
OHOS::Rect::~Rect ()	A destructor used to delete the Rect instance.
OHOS::Rect::Rect (int16_t left, int16_t top, int16_t right, int16_t bottom)	A constructor used to create a Rect instance based on the coordinates of the four boundaries.
OHOS::Rect::Rect (const Rect &other)	A constructor used to create a Rect instance by copying another rectangle.
OHOS::Rect::Rect (const Rect &&other)	A constructor used to create a Rect instance by copying another rectangle.
OHOS::Rect::SetRect (int16_t left, int16_t top, int16_t right, int16_t bottom)	void Sets the coordinates of the four boundaries of a rectangle.
OHOS::Rect::GetWidth () const	int16_t Obtains the rectangle width.
OHOS::Rect::GetHeight () const	int16_t Obtains the rectangle height.
OHOS::Rect::GetX () const	int16_t Obtains the left boundary coordinate of the rectangle.
OHOS::Rect::GetY () const	int16_t Obtains the top boundary coordinate of the rectangle.
OHOS::Rect::GetLeft () const	int16_t Obtains the left boundary coordinate of the rectangle.
OHOS::Rect::GetTop () const	int16_t Obtains the top boundary coordinate of the rectangle.
OHOS::Rect::GetRight () const	int16_t Obtains the right boundary coordinate of the rectangle.
OHOS::Rect::GetBottom () const	int16_t Obtains the bottom boundary coordinate of the rectangle.
OHOS::Rect::SetX (int16_t x)	void Changes the left boundary coordinate of the rectangle without changing the rectangle width.
OHOS::Rect::SetY (int16_t y)	void Changes the top boundary coordinate of the rectangle without changing the rectangle height.
OHOS::Rect::SetPosition (int16_t x, int16_t y)	void Changes the coordinates of the left and top boundaries of the rectangle without changing the rectangle width and height.
OHOS::Rect::SetWidth (int16_t width)	void Changes the width of the rectangle without changing the coordinate of the left boundary.
OHOS::Rect::SetHeight (int16_t height)	void Changes the height of the rectangle without changing the coordinate of the top boundary.
OHOS::Rect::SetLeft (int16_t left)	void Sets the coordinate of the left boundary of a rectangle.
OHOS::Rect::SetTop (int16_t top)	void Sets the coordinate of the top boundary of a rectangle.
OHOS::Rect::SetRight (int16_t right)	void Sets the coordinate of the right boundary of a rectangle.
OHOS::Rect::SetBottom (int16_t bottom)	void Sets the coordinate of the bottom boundary of a rectangle.
OHOS::Rect::Resize (int16_t width, int16_t height)	void Sets the width and height of a rectangle.
OHOS::Rect::GetSize () const	uint32_t Obtains the area of a rectangle.
OHOS::Rect::Intersect (const Rect &rect1, const Rect &rect2)	bool Checks whether two rectangles intersect.
OHOS::Rect::Join (const Rect &rect1, const Rect &rect2)	void Obtains the minimum rectangle that contains another two rectangles.
OHOS::Rect::IsContains (const Vector2< int16_t > &point) const	bool Checks whether the rectangle contains a coordinate point.
OHOS::Rect::IsContains (const Point &point) const	bool Checks whether the rectangle contains a coordinate point.
OHOS::Rect::IsExtends (const Rect &other) const	bool Checks whether the rectangle is adjacent to another rectangle horizontally or vertically.
OHOS::Rect::IsIntersect (const Rect &other) const	bool Checks whether the rectangle intersects with another rectangle.
OHOS::Rect::IsContains (const Rect &other) const	bool Checks whether the rectangle contains another rectangle.
OHOS::Style::Style ()	A constructor used to create a Style instance.
OHOS::Style::~Style ()	virtual A destructor used to delete the Style instance.
OHOS::Style::SetStyle (uint8_t key, int64_t value)	void Sets a style.
OHOS::Style::GetStyle (uint8_t key) const	int64_t Obtains the value of a style.
OHOS::StyleDefault::StyleDefault ()	A constructor used to create a StyleDefault instance.
OHOS::StyleDefault::~StyleDefault ()	A destructor used to delete the StyleDefault instance.
OHOS::StyleDefault::GetDefaultStyle ()	static Style & Obtains the default style.
OHOS::StyleDefault::GetBrightStyle ()	static Style & Obtains the bright style.
OHOS::StyleDefault::GetBrightColorStyle ()	static Style & Obtains the bright color style.
OHOS::StyleDefault::GetButtonPressedStyle ()	static Style & Obtains the button pressed style.
OHOS::StyleDefault::GetButtonReleasedStyle ()	static Style & Obtains the button released style.
OHOS::StyleDefault::GetButtonInactivedStyle ()	static Style & Obtains the button inactived style.
OHOS::StyleDefault::GetLabelStyle ()	static Style & Obtains the label style.
OHOS::StyleDefault::GetBackgroundTransparentStyle ()	static Style & Obtains the background transparent style.
OHOS::StyleDefault::GetProgressBackgroundStyle ()	static Style & Obtains the progress background style.
OHOS::StyleDefault::GetProgressForegroundStyle ()	static Style & Obtains the progress foreground style.
OHOS::StyleDefault::GetSliderKnobStyle ()	static Style & Obtains the slider knob style.
OHOS::StyleDefault::GetPickerBackgroundStyle ()	static Style & Obtains the picker background style.
OHOS::StyleDefault::GetPickerHighlightStyle ()	static Style & Obtains the picker highlight style.
OHOS::SysInfo::OnFPSChangedListener::OnFPSChangedListener ()	A constructor used to create an OnFPSChangedListener instance with the default sampling type FPS_CT_FIXED_TIME.
OHOS::SysInfo::OnFPSChangedListener::~OnFPSChangedListener ()	virtual A destructor used to delete the OnFPSChangedListener instance.
OHOS::SysInfo::OnFPSChangedListener::OnFPSChanged (float newFPS)=0	virtual void Called when the FPS data changes.
OHOS::SysInfo::OnFPSChangedListener::GetFPSCalculateType () const	FPSCalculateType Obtains the FPS sampling type.
OHOS::SysInfo::OnFPSChangedListener::SetFPSCalculateType (FPSCalculateType type)	void Sets the FPS sampling type.
OHOS::SysInfo::GetFPS ()	static float Obtains the FPS data.
OHOS::SysInfo::RegisterFPSChangedListener (OnFPSChangedListener *onFPSChangedListener)	static void Registers the listener for notifying the FPS changes.
OHOS::Theme::Theme ()	A constructor used to create a Theme instance.
OHOS::Theme::~Theme ()	virtual A destructor used to delete the Theme instance.
OHOS::Theme::GetMainStyle ()	Style & Obtains the basic style.
OHOS::Theme::GetButtonStyle ()	ButtonStyle & Obtains the style of this button.
OHOS::Theme::GetLabelStyle ()	Style & Obtains the style of this label.
OHOS::Theme::GetPickerBackgroundStyle ()	Style & Obtains the background style of this picker.
OHOS::Theme::GetPickerHighlightStyle ()	Style & Obtains the highlight style of this picker.
OHOS::Theme::GetProgressBackgroundStyle ()	Style & Obtains the background style of this progress bar.
OHOS::Theme::GetProgressForegroundStyle ()	Style & Obtains the foreground style of this progress bar.
OHOS::Theme::GetSliderKnobStyle ()	Style & Obtains the style of this slider knob.
OHOS::ThemeManager::GetInstance ()	static ThemeManager & Obtains the singleton instance of the ThemeManager class.
OHOS::ThemeManager::SetCurrent (Theme *theme)	void Sets the current screen theme for this application.
OHOS::ThemeManager::GetCurrent ()	Theme * Obtains the current screen theme of this application.
OHOS::TransformMap::TransformMap ()	The default constructor used to create a TransformMap instance.
OHOS::TransformMap::TransformMap (const Rect &rect)	A constructor used to create a TransformMap instance.
OHOS::TransformMap::~TransformMap ()	A destructor used to delete the TransformMap instance.
OHOS::TransformMap::GetClockWise () const	bool Checks whether the vertex coordinates of a polygon are clockwise.
OHOS::TransformMap::SetPolygon (const Polygon &polygon)	void Sets a polygon after rectangle transformation.
OHOS::TransformMap::GetPolygon () const	Polygon Obtains the polygon after rectangle transformation.
OHOS::TransformMap::GetPivot () const	Point Obtains the pivot for the rotation or scaling operation.
OHOS::TransformMap::IsInvalid () const	bool Checks whether the TransformMap instance is invalid. When the vertices are all 0, the TransformMap is invalid.
OHOS::TransformMap::GetBoxRect () const	Rect Obtains the minimum rectangle that can contain a polygon. All vertices of the polygon are inside this rectangle.
OHOS::TransformMap::Rotate (int16_t angle, const Vector2< int16_t > &pivot)	void Rotates the rectangle.
OHOS::TransformMap::Scale (const Vector2< float > scale, const Vector2< int16_t > &pivot)	void Scales the rectangle.
OHOS::Rotate (const Vector2< int16_t > &point, int16_t angle, const Vector2< int16_t > &pivot, Vector2< int16_t > &out)	void Rotates a point around the pivot by a certain angle.
OHOS::Rotate (const Line &origLine, int16_t angle, const Vector2< int16_t > &pivot, Line &out)	void Rotates a line around the pivot by a certain angle.
OHOS::Rotate (const Rect &origRect, int16_t angle, const Vector2< int16_t > &pivot, Polygon &out)	void Rotates a rectangle around the pivot by a certain angle.
OHOS::GetVersion ()	std::string Obtains the version number of the graphics module.
OHOS::GetLibDsc ()	std::string Obtains the library description of the graphics module.

## **Details** ## **Macro Definition Documentation** ## VERSION\_STANDARD ``` #define VERSION_STANDARD ``` **Description:** Defines three graphics library versions: lightweight, standard, and extended versions. The three versions have different requirements on the memory and hardware. The standard version is enabled by default. The macros of the versions are defined as follows: ## **Typedef Documentation** ## EasingFunc ``` typedef int16_t(* OHOS::EasingFunc) (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime) ``` **Description:** Calculates the value for the current time of an animation. Returns the value for the current time. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

## **Enumeration Type Documentation** ## anonymous enum ``` anonymous enum : uint8_t ``` **Description:** Enumerates the states of this animator.

Enumerator	Description
STOP	Stop
START	Start
PAUSE	Pause
RUNNING	Running (reserved and not used currently)

## anonymous enum ``` anonymous enum : uint8_t ``` **Description:** Enumerates keys of styles.

Enumerator	Description
STYLE_BACKGROUND_COLOR	Background color
STYLE_BACKGROUND_OPA	Background opacity
STYLE_BORDER_RADIUS	Border radius
STYLE_BORDER_COLOR	Border color
STYLE_BORDER_OPA	Border opacity
STYLE_BORDER_WIDTH	Border width
STYLE_PADDING_LEFT	Left padding
STYLE_PADDING_RIGHT	Right padding
STYLE_PADDING_TOP	Top padding
STYLE_PADDING_BOTTOM	Bottom padding
STYLE_MARGIN_LEFT	Left margin
STYLE_MARGIN_RIGHT	Right margin
STYLE_MARGIN_TOP	Top margin
STYLE_MARGIN_BOTTOM	Bottom margin
STYLE_IMAGE_OPA	Image opacity
STYLE_TEXT_COLOR	Text color
STYLE_TEXT_FONT	Text font
STYLE_LETTER_SPACE	Letter spacing
STYLE_LINE_SPACE	Line spacing
STYLE_TEXT_OPA	Text opacity
STYLE_LINE_COLOR	Line color
STYLE_LINE_WIDTH	Line width
STYLE_LINE_OPA	Line opacity
STYLE_LINE_CAP	Line cap style

## anonymous enum ``` anonymous enum ``` **Description:** Enumerates opacity values.

Enumerator	Description
OPA_TRANSPARENT	The opacity is 0.
OPA_OPAQUE	The opacity is 100%.

## ButtonImageSrc ``` enum [OHOS::UIButton::ButtonImageSrc](Graphic.md#gaf9f6c0c373f090e79b9e8d847e186e92) : uint8_t ``` **Description:** Enumerates the images for different button states. You can define a different image for each button state. ## ButtonState ``` enum [OHOS::UIButton::ButtonState](Graphic.md#ga188dd55c17ee44be27fa80543f13f729) : uint8_t ``` **Description:** Enumerates the states of this button. The button has three states. ## CapType ``` enum [OHOS::CapType](Graphic.md#ga2db3928cdf793f4950245a6841dd43d6) : uint8_t ``` **Description:** Enumerates cap styles.

Enumerator	Description
CAP_NONE	No cap style
CAP_ROUND	Round cap style

## ColorMode ``` enum [OHOS::ColorMode](Graphic.md#ga3a3fb04ed2cda4017e6771c66b692141) : uint8_t ``` **Description:** colormode of image and font.

Enumerator	Description
ARGB8888	ARGB8888 color mode
RGB888	RGB888 color mode
RGB565	RGB565 color mode
ARGB1555	ARGB1555 color mode
ARGB4444	ARGB4444 color mode
AL44	AL44 color mode
AL88	AL88 color mode
L1	L1 color mode
L2	L2 color mode
L4	L4 color mode
L8	L8 color mode
A1	A1 color mode
A2	A2 color mode
A4	A4 color mode
A8	A8 color mode
UNKNOW	unknow color mode

## DeviceType ``` enum [OHOS::VirtualDeviceEvent::DeviceType](Graphic.md#gaf8133740d5a3cb2f88a7f33cb11c6dbd) ``` **Description:** Enumerates virtual device types. ## DialogButtonType ``` enum [OHOS::UIDialog::DialogButtonType](Graphic.md#ga1bfefa0b46fd5a79a28d0c9a75114295) ``` **Description:** Enumerates buttons in a dialog box.

Enumerator	Description
BUTTON1	First button
BUTTON2	Second button
BUTTON3	Third button

## Direction ``` enum [OHOS::UIBoxProgress::Direction](Graphic.md#ga4a7a2c192206c8b18379f42a5fd176eb) : uint8_t ``` **Description:** Enumerates the directions of the progress bar.

Enumerator	Description
DIR_LEFT_TO_RIGHT	Filling from left to right
DIR_RIGHT_TO_LEFT	Filling from right to left
DIR_TOP_TO_BOTTOM	Filling from top to bottom
DIR_BOTTOM_TO_TOP	Filling from bottom to top

## DisplayMode ``` enum [OHOS::UIDigitalClock::DisplayMode](Graphic.md#gabe3b64b11e5bf5d7b54e1039e40f306b) ``` **Description:** Enumerates the display modes of this digital clock.

Enumerator	Description
DISPLAY_12_HOUR_NO_SECONDS	12-hour format, without seconds
DISPLAY_24_HOUR_NO_SECONDS	24-hour format, without seconds
DISPLAY_12_HOUR	12-hour format
DISPLAY_24_HOUR	24-hour format

## DrawType ``` enum [OHOS::UIAnalogClock::DrawType](Graphic.md#ga0a595eeb50ce4e7dfff9ede16098d2db) ``` **Description:** Enumerates the drawing types of a clock hand.

Enumerator	Description
DRAW_LINE	Using a line to draw a clock hand
DRAW_IMAGE	Using an image to draw a clock hand

## FPSCalculateType ``` enum [OHOS::SysInfo::FPSCalculateType](Graphic.md#ga75d850e3abff6c2f617b689a0cb9a3d1) ``` **Description:** Enumerates the FPS capture types.

Enumerator	Description
FPS_CT_FIXED_TIME	Fixed time sampling: The system collects the number of page refresh times within one second.
FPS_CT_AVERAGE_SAMPLING	Average sampling: The system collects statistics on the average frame rate of 100 frames. No extra space is required to store the data of each frame. The precision is not as high as that of precise sampling.
FPS_CT_PRECISE_SAMPLING	Precise sampling: The system collects statistics on the average frame rate of the current 100 frames. Extra space is required to save the data of each frame. The result is more precise than that of average sampling.

## HandType ``` enum [OHOS::UIAnalogClock::HandType](Graphic.md#ga13cf64ea5bd39550976aaf65b1381edf) ``` **Description:** Enumerates the clock hand types.

Enumerator	Description
HOUR_HAND	Hour hand
MINUTE_HAND	Minute hand
SECOND_HAND	Second hand

## LineBreakMode ``` enum [OHOS::UILabel::LineBreakMode](Graphic.md#gaf2ba9acac6cafffc549781ace0475cd5) : uint8_t ``` **Description:** Enumerates the display modes of a long text.

Enumerator	Description
LINE_BREAK_ADAPT	The label size is adaptive to the text size.
LINE_BREAK_STRETCH	The height of this label remains unchanged, and the width is adaptive to the text size.
LINE_BREAK_WRAP	The width of this label remains unchanged, and the height is adaptive to the text size. The text switches to the next line if the text exceeds the maximum label width.
LINE_BREAK_ELLIPSIS	The width and height of this label remain unchanged. If this text is too long, ellipsis will be used at the end.
LINE_BREAK_MARQUEE	The width and height of this label remain unchanged. If this text is too long, it will be rolled to display.
LINE_BREAK_CLIP	The width and height of this label remain unchanged. If this text is too long, it will be cropped to display.
LINE_BREAK_MAX	Maximum value of the line break mode, which is used for validity check.

## PaintStyle ``` enum [OHOS::Paint::PaintStyle](Graphic.md#ga548320a469b7862fa416af062cad5d7a) ``` **Description:** Enumerates paint styles of a closed graph. The styles are invalid for non-closed graphs.

Enumerator	Description
STROKE_STYLE	Stroke only
FILL_STYLE	Fill only
STROKE_FILL_STYLE	Stroke and fill

## TextOrientation ``` enum [OHOS::UIArcLabel::TextOrientation](Graphic.md#ga0778527bee4a7ddd8d46395585a5cfb9) : uint8_t ``` **Description:** Enumerates text orientations.

Enumerator	Description
INSIDE	Inside
OUTSIDE	Outside

## TimeElement ``` enum [OHOS::UIDigitalClock::TimeElement](Graphic.md#gaa6aacc9ecbf5e20f22e50e542a69f472) ``` **Description:** Enumerates the time elements of this digital clock.

Enumerator	Description
HOUR_ELEMENT	Clock
MINUTE_ELEMENT	Minute
SECOND_ELEMENT	Second

## UICheckBoxState ``` enum [OHOS::UICheckBox::UICheckBoxState](Graphic.md#ga15a3f0302aded0e4d1584ddc6002335d) : uint8_t ``` **Description:** Enumerates the states of a check box. ## UITextLanguageAlignment ``` enum [OHOS::UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) : uint8_t ``` **Description:** Enumerates text alignment modes.

Enumerator	Description
TEXT_ALIGNMENT_LEFT	Left-aligned
TEXT_ALIGNMENT_RIGHT	Right-aligned
TEXT_ALIGNMENT_CENTER	Centered
TEXT_ALIGNMENT_TOP	Top-aligned
TEXT_ALIGNMENT_BOTTOM	Bottom-aligned

## UITextLanguageDirect ``` enum [OHOS::UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) : uint8_t ``` **Description:** Enumerates text directions.

Enumerator	Description
TEXT_DIRECT_LTR	Left-to-right
TEXT_DIRECT_RTL	Right-to-left

## WorkMode ``` enum [OHOS::UIAbstractClock::WorkMode](Graphic.md#ga19db90932bc71e6bbced6ccf2935ac98) ``` **Description:** Enumerates the working modes of this clock.

Enumerator	Description
ALWAYS_ON	Always on (drawing not updated)
NORMAL	Normal (drawing updated with the time change)

## **Function Documentation** ## AbstractAdapter\(\) ``` OHOS::AbstractAdapter::AbstractAdapter () ``` **Description:** A constructor used to create an **[AbstractAdapter](OHOS-AbstractAdapter.md)** instance. ## Add\(\) \[1/3\] ``` void OHOS::AnimatorManager::Add ([Animator](OHOS-Animator.md) * animator) ``` **Description:** Adds the **[Animator](OHOS-Animator.md)** instance to the **[AnimatorManager](OHOS-AnimatorManager.md)** linked list for management, so that the **Run** function of the **[Animator](OHOS-Animator.md)** class is called once for each frame. **Parameters:**

Name	Description
animator	Indicates the pointer to the Animator instance to add.

**See also:** [Remove](Graphic.md#ga493d53a9e4a47b79d30c0d37f96a69da) ## Add\(\) \[2/3\] ``` virtual void OHOS::UIViewGroup::Add ([UIView](OHOS-UIView.md) * view) ``` **Description:** Adds a child view. Reimplemented in [OHOS::UISwipeView](Graphic.md#ga1cdc37a33412d6134ed7214300bc1c87). **Parameters:**

Name	Description
view	Indicates the pointer to the child view to add.

## Add\(\) \[3/3\] ``` void OHOS::UISwipeView::Add ([UIView](OHOS-UIView.md) * view) ``` **Description:** Adds a view. Reimplemented from [OHOS::UIViewGroup](Graphic.md#gacf5db120308ac7783c493f5437f06cee). **Parameters:**

Name	Description
view	Indicates the view to add.

## AddDataSerial\(\) ``` virtual bool OHOS::UIChart::AddDataSerial ([UIChartDataSerial](OHOS-UIChartDataSerial.md) * dataSerial) ``` **Description:** Adds a data set. **Parameters:**

Name	Description
dataSerial	Indicates the pointer to the data set class. For details, see UIChartDataSerial.

**Returns:** Returns **true** if the data set is added successfully; returns **false** otherwise. **See also:** [DeleteDataSerial](Graphic.md#ga2af81fbcd6a17ef250bf07e2d7606b8d) ## AddPoints\(\) ``` bool OHOS::UIChartDataSerial::AddPoints (const [Point](OHOS-Point.md) * data, uint16_t count ) ``` **Description:** Adds data points. The new data points are appended to the last added data. No more data points can be added if the maximum number is reached **Parameters:**

Name	Description
data	Indicates the pointer to the start address of the data point.
count	Indicates the number of data points to add.

**Returns:** Returns **true** if the data points are added successfully; returns **false** otherwise. ## AlignBottomToSibling\(\) ``` void OHOS::UIView::AlignBottomToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Aligns the view with the bottom of a sibling view. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the y-axis after the view is placed. A positive number indicates the offset to the top, and a negative number indicates the offset to the bottom.

## AlignHorCenterToSibling\(\) ``` void OHOS::UIView::AlignHorCenterToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Aligns the view with the center of a sibling view in the x-axis. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the x-axis after the view is placed. A positive number indicates the offset to the right, and a negative number indicates the offset to the left.

## AlignLeftToSibling\(\) ``` void OHOS::UIView::AlignLeftToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Aligns the view with the left of a sibling view. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the x-axis after the view is placed. A positive number indicates the offset to the right, and a negative number indicates the offset to the left.

## AlignRightToSibling\(\) ``` void OHOS::UIView::AlignRightToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Aligns the view with the right of a sibling view. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the x-axis after the view is placed. A positive number indicates the offset to the left, and a negative number indicates the offset to the right.

## AlignTopToSibling\(\) ``` void OHOS::UIView::AlignTopToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Aligns the view with the top of a sibling view. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the y-axis after the view is placed. A positive number indicates the offset to the bottom, and a negative number indicates the offset to the top.

## AlignVerCenterToSibling\(\) ``` void OHOS::UIView::AlignVerCenterToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Aligns the view with the center of a sibling view in the y-axis. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the y-axis after the view is placed. A positive number indicates the offset to the bottom, and a negative number indicates the offset to the top.

## Animator\(\) \[1/2\] ``` OHOS::Animator::Animator () ``` **Description:** A default constructor used to create an **[Animator](OHOS-Animator.md)** instance. ## Animator\(\) \[2/2\] ``` OHOS::Animator::Animator ([AnimatorCallback](OHOS-AnimatorCallback.md) * callback, [UIView](OHOS-UIView.md) * view, uint32_t time, bool repeat ) ``` **Description:** A constructor used to create an **[Animator](OHOS-Animator.md)** instance. **Parameters:**

Name	Description
callback	Indicates the animator callback for producing animator effects. For details, see AnimatorCallback.
view	Indicates the UIView instance bound to an animator, which can be used when invoking the animator callback.
time	Indicates the duration of this animator, in milliseconds.
repeat	Specifies whether to repeat this animator. true indicates the animator is repeated, and false (default value) indicates the animator is played once.

## Aqua\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Aqua () ``` **Description:** Obtains the color data of aqua. **Returns:** Returns the color data. ## Back\(\) ``` const T [OHOS::List](OHOS-List-T.md)< T >::Back () const ``` **Description:** Obtains the tail node data of a linked list. **Returns:** Returns the tail node data. ## BackEaseIn\(\) ``` static int16_t OHOS::EasingEquation::BackEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in with an overshoot. **\(s+1\)\*t^3 - s\*t^2** is the equation for a back easing. The animation moves back slightly at the beginning and then accelerates towards the end. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [SetBackOvershoot](Graphic.md#gab7cf0e64a0d363d8b448262d719ac97a) | [BackEaseOut](Graphic.md#ga7399f01f7abc33413bf25aa17a99c2f2) | [BackEaseInOut](Graphic.md#gac7c2a9a1dfce384438a3bd9d6c0c2525) ## BackEaseInOut\(\) ``` static int16_t OHOS::EasingEquation::BackEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in and then out with an overshoot. **\(s+1\)\*t^3 - s\*t^2** is the equation for a back easing. The animation slightly moves back at the beginning, goes towards the end, slightly exceeds it and finally comes back. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [SetBackOvershoot](Graphic.md#gab7cf0e64a0d363d8b448262d719ac97a) | [BackEaseIn](Graphic.md#ga4598524b16a33de497fa9321d887d3b1) | [BackEaseInOut](Graphic.md#gac7c2a9a1dfce384438a3bd9d6c0c2525) ## Begin\(\) ``` [ListNode](OHOS-ListNode-T.md)* [OHOS::List](OHOS-List-T.md)< T >::Begin () const ``` **Description:** Obtains the head node address of a linked list. **Returns:** Returns the head node address. ## Black\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Black () ``` **Description:** Obtains the color data of black. **Returns:** Returns the color data. ## Blue\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Blue () ``` **Description:** Obtains the color data of blue. **Returns:** Returns the color data. ## Callback\(\) ``` virtual void OHOS::AnimatorCallback::Callback ([UIView](OHOS-UIView.md) * view) ``` **Description:** Called when each frame starts. This is a pure virtual function, which needs your inheritance and implementation. **Parameters:**

Name	Description
view	Indicates the UIView instance, which is added from the constructor of the Animator class.

## Cancel\(\) ``` void OHOS::UITextureMapper::Cancel () ``` **Description:** Cancels this animator. After being cancelled, the animator will stop in the current playback state. ## CancelEvent\(\) ``` OHOS::CancelEvent::CancelEvent (const [Point](OHOS-Point.md) & pos) ``` **Description:** A constructor used to create a **[CancelEvent](OHOS-CancelEvent.md)** instance. **Parameters:**

Name	Description
pos	Indicates the position where the cancel event occurs.

## CircEaseIn\(\) ``` static int16_t OHOS::EasingEquation::CircEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in shaping like a circular curve. **sqrt\(1-t^2\)** is the equation for a circular easing. The animation starts slowly from zero velocity and accelerates fast towards the end. The acceleration change is similar to a circular curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [CircEaseOut](Graphic.md#gaab8fad8664d648df7e5e224b68ee54ad) | [CircEaseInOut](Graphic.md#ga68c392dad14e1bef192b085aeec6ca9b) ## CircEaseInOut\(\) ``` static int16_t OHOS::EasingEquation::CircEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in and then out shaping like a circular curve. **sqrt\(1-t^2\)** is the equation for a circular easing. The animation accelerates slowly until halfway and decreases slowly towards the end. The acceleration change is similar to a circular curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [CircEaseIn](Graphic.md#ga446c958f14b3d6de24e2c1bab171bba2) | [CircEaseOut](Graphic.md#gaab8fad8664d648df7e5e224b68ee54ad) ## CircEaseOut\(\) ``` static int16_t OHOS::EasingEquation::CircEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases out shaping like a circular curve. **sqrt\(1-t^2\)** is the equation for a circular easing. The animation starts fast and decelerates slowly towards the end. The acceleration change is similar to a circular curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [CircEaseIn](Graphic.md#ga446c958f14b3d6de24e2c1bab171bba2) | [CircEaseInOut](Graphic.md#ga68c392dad14e1bef192b085aeec6ca9b) ## Clear\(\) \[1/2\] ``` void [OHOS::List](OHOS-List-T.md)< T >::Clear () ``` **Description:** Deletes all nodes from a linked list. ## Clear\(\) \[2/2\] ``` void OHOS::UICanvas::Clear () ``` **Description:** Clears the entire canvas. ## ClearData\(\) ``` void OHOS::UIChartDataSerial::ClearData () ``` **Description:** Clears all data points. ## ClearDataSerial\(\) ``` virtual void OHOS::UIChart::ClearDataSerial () ``` **Description:** Clears all data sets. ## ClearOnKeyActListener\(\) ``` void OHOS::RootView::ClearOnKeyActListener () ``` **Description:** Clears the listener for monitoring physical key events. ## ClearOnVirtualDeviceEventListener\(\) ``` void OHOS::RootView::ClearOnVirtualDeviceEventListener () ``` **Description:** Clears the listener for monitoring the input events of a virtual device. ## ClearValues\(\) ``` virtual void OHOS::UIPicker::ClearValues () ``` **Description:** Clears all values in the picker. ## ClickEvent\(\) ``` OHOS::ClickEvent::ClickEvent (const [Point](OHOS-Point.md) & pos) ``` **Description:** A constructor used to create a **[ClickEvent](OHOS-ClickEvent.md)** instance. **Parameters:**

Name	Description
pos	Indicates the position where the click event occurs.

## Clip\(\) \[1/2\] ``` void OHOS::Clip (const [Line](OHOS-Line.md) & line, const [Polygon](OHOS-Polygon.md) & poly, [Vector2](OHOS-Vector2-T.md)< int16_t > * pOut, uint8_t * pNum ) ``` **Description:** Clips a polygon by using a line segment and obtains the intersections. **Parameters:**

Name	Description
line	Indicates the line segment used for clipping.
poly	Indicates the polygon to clip.
pOut	Indicates the pointer to the intersections.
pNum	Indicates the pointer to the number of the intersections.

## Clip\(\) \[2/2\] ``` void OHOS::Clip ([Polygon](OHOS-Polygon.md) & poly, const [Line](OHOS-Line.md) & line ) ``` **Description:** Clips a polygon by using a line segment. **Parameters:**

Name	Description
poly	Indicates the polygon to clip.
line	Indicates the line segment used for clipping.

## ColorTo16\(\) ``` static uint16_t OHOS::Color::ColorTo16 ([Color32](OHOS-Color32.md) color) ``` **Description:** Converts color data from the RGBA8888 format into the RGB565 format. **Parameters:**

Name	Description
color	Indicates the color data with the 32-bit color depth, which is defined by Color32.

**Returns:** Returns the RGB565 color data. ## ColorTo32\(\) \[1/2\] ``` static uint32_t OHOS::Color::ColorTo32 ([Color16](OHOS-Color16.md) color, uint8_t alpha ) ``` **Description:** Converts color data with the 16-bit color depth into the RGBA8888 format. **Parameters:**

Name	Description
color	Indicates the color data with the 16-bit color depth, which is defined by Color16.
alpha	Indicates the alpha, that is, how opaque each pixel is.

**Returns:** Returns the RGBA8888 color data. ## ColorTo32\(\) \[2/2\] ``` static uint32_t OHOS::Color::ColorTo32 ([ColorType](OHOS-Color32.md) color) ``` **Description:** Converts color data into the RGBA8888 format. The color data definition varies according to the color depth. **Parameters:**

Name	Description
color	Indicates the color data, which is defined by ColorType.

**Returns:** Returns the RGBA8888 color data. ## Cross\(\) ``` T [OHOS::Vector2](OHOS-Vector2-T.md)< T >::Cross (const [Vector2](OHOS-Vector2-T.md)< T > & other) const ``` **Description:** Calculates the cross product of the two-dimensional vector and another two-dimensional vector. **Parameters:**

Name	Description
other	Indicates the two-dimensional vector to be used for calculation.

**Returns:** Returns the cross product. ## CubicEaseIn\(\) ``` static int16_t OHOS::EasingEquation::CubicEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in shaping like a cubic curve. **t^3** is the equation for a cubic easing. The animation starts slowly from zero velocity and accelerates fast towards the end. The acceleration change is similar to a cubic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [CubicEaseOut](Graphic.md#ga529a948d9f6711a5f2726af5f10d7a48) | [CubicEaseInOut](Graphic.md#gad99ea4ed828f274f111f492eea123cb4) ## CubicEaseInOut\(\) ``` static int16_t OHOS::EasingEquation::CubicEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in and then out shaping like a cubic curve. **t^3** is the equation for a cubic easing. The animation accelerates slowly until halfway and decelerates slowly towards the end. The acceleration change is similar to a cubic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [CubicEaseIn](Graphic.md#ga5c91a83cc424fb7e4e1f40cae6b3be66) | [CubicEaseOut](Graphic.md#ga529a948d9f6711a5f2726af5f10d7a48) ## CubicEaseOut\(\) ``` static int16_t OHOS::EasingEquation::CubicEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases out shaping like a cubic curve. **t^3** is the equation for a cubic easing. The animation starts fast and decelerates slowly towards the end. The acceleration change is similar to a cubic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [CubicEaseIn](Graphic.md#ga5c91a83cc424fb7e4e1f40cae6b3be66) | [CubicEaseInOut](Graphic.md#gad99ea4ed828f274f111f492eea123cb4) ## Cyan\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Cyan () ``` **Description:** Obtains the color data of cyan. **Returns:** Returns the color data. ## DeleteDataSerial\(\) ``` virtual bool OHOS::UIChart::DeleteDataSerial ([UIChartDataSerial](OHOS-UIChartDataSerial.md) * dataSerial) ``` **Description:** Deletes a data set. **Parameters:**

Name	Description
dataSerial	Indicates the pointer to the data set class. For details, see UIChartDataSerial.

**Returns:** Returns **true** if the data set is deleted successfully; returns **false** otherwise. **See also:** [AddDataSerial](Graphic.md#gafc510047aac4e7eebd5b229e726ef762) ## Determinant\(\) ``` T [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::Determinant ``` **Description:** Obtains the determinant of the matrix. **Returns:** Returns the determinant. ## Disable\(\) ``` void OHOS::UIButton::Disable () ``` **Description:** Disables this button. ## DisplayLeadingZero\(\) ``` void OHOS::UIDigitalClock::DisplayLeadingZero (bool displayLeadingZero) ``` **Description:** Sets whether to add **0** before the hour of this digital clock. **Parameters:**

Name	Description
displayLeadingZero	Specifies whether to add 0 before the hour of this digital clock. true indicates that 0 is added, and false indicates the opposite case.

## Dot\(\) ``` T [OHOS::Vector2](OHOS-Vector2-T.md)< T >::Dot (const [Vector2](OHOS-Vector2-T.md)< T > & other) const ``` **Description:** Calculates the scalar product of the two-dimensional vector and another two-dimensional vector. **Parameters:**

Name	Description
other	Indicates the two-dimensional vector to be used for calculation.

**Returns:** Returns the scalar product. ## DragEvent\(\) ``` OHOS::DragEvent::DragEvent (const [Point](OHOS-Point.md) & newPos, const [Point](OHOS-Point.md) & lastPos, const [Point](OHOS-Point.md) & totalLen ) ``` **Description:** A constructor used to create a **[DragEvent](OHOS-DragEvent.md)** instance. **Parameters:**

Name	Description
newPos	Indicates the new position in the drag event.
lastPos	Indicates the last position in the drag event.
totalLen	Indicates the distance that the view has been dragged, including the movement on the x-axis and y-axis.

## DrawArc\(\) ``` void OHOS::UICanvas::DrawArc (const [Point](OHOS-Point.md) & center, uint16_t radius, int16_t startAngle, int16_t endAngle, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws an arc. Only stroke is supported. When the start angle is smaller than the end angle, the sector is drawn clockwise. Otherwise, the sector is drawn counterclockwise. **Parameters:**

Name	Description
center	Indicates the coordinates of the arc's center.
radius	Indicates the radius of the arc.
startAngle	Indicates the start angle of the arc. Value 0 indicates the 12-o'clock direction, and 90 indicates the 3-o'clock direction.
endAngle	Indicates the end angle of the arc. Value 0 indicates the 12-o'clock direction, and 90 indicates the 3-o'clock direction.
paint	Indicates the arc style. For details, see Paint.

## DrawCircle\(\) ``` void OHOS::UICanvas::DrawCircle (const [Point](OHOS-Point.md) & center, uint16_t radius, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws a circle. **Parameters:**

Name	Description
center	Indicates the coordinates of the circle center.
radius	Indicates the radius of the circle.
paint	Indicates the circle style. For details, see Paint.

## DrawCurve\(\) \[1/2\] ``` void OHOS::UICanvas::DrawCurve (const [Point](OHOS-Point.md) & control1, const [Point](OHOS-Point.md) & control2, const [Point](OHOS-Point.md) & endPoint, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws a cubic Bezier curve. If [SetStartPosition](Graphic.md#gaca35fe1a1d344eab80ecb1425a74a91a) is not used to set the coordinates of the start point of the curve, the drawing starts from the end point of the last line. Currently, the opacity cannot be set, and the maximum line width is **3**. **Parameters:**

Name	Description
control1	Indicates the coordinates of the first control point of the cubic Bezier curve.
control2	Indicates the coordinates of the second control point of the cubic Bezier curve.
endPoint	Indicates the coordinates of the end point of the cubic Bezier curve.
paint	Indicates the curve style. For details, see Paint.

## DrawCurve\(\) \[2/2\] ``` void OHOS::UICanvas::DrawCurve (const [Point](OHOS-Point.md) & startPoint, const [Point](OHOS-Point.md) & control1, const [Point](OHOS-Point.md) & control2, const [Point](OHOS-Point.md) & endPoint, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws a cubic Bezier curve from the start point coordinates. Currently, the opacity cannot be set, and the maximum line width is **3**. **Parameters:**

Name	Description
startPoint	Indicates the coordinates of the start point of the cubic Bezier curve.
control1	Indicates the coordinates of the first control point of the cubic Bezier curve.
control2	Indicates the coordinates of the second control point of the cubic Bezier curve.
endPoint	Indicates the coordinates of the end point of the cubic Bezier curve.
paint	Indicates the curve style. For details, see Paint.

## DrawImage\(\) ``` void OHOS::UICanvas::DrawImage (const [Point](OHOS-Point.md) & startPoint, const char * image, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws an image. **Parameters:**

Name	Description
startPoint	Indicates the coordinates of the start point.
image	Indicates the pointer to the image source.
paint	Indicates the image style. For details, see Paint.

## DrawLabel\(\) ``` void OHOS::UICanvas::DrawLabel (const [Point](OHOS-Point.md) & startPoint, const char * text, uint16_t maxWidth, const [FontStyle](OHOS-UICanvas-FontStyle.md) & fontStyle, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws text. Only fill is supported. If the text length exceeds the value of **maxWidth**, the text will be truncated. **Parameters:**

Name	Description
startPoint	Indicates the coordinates of the start point.
text	Indicates the pointer to the text content.
maxWidth	Indicates the maximum width of the text that can be displayed. If the maximum width is exceeded, the text is truncated.
fontStyle	Indicates the text layout and font style. For details, see FontStyle.
paint	Indicates the text style. For details, see Paint.

## DrawLine\(\) \[1/2\] ``` void OHOS::UICanvas::DrawLine (const [Point](OHOS-Point.md) & endPoint, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws a straight line. If [SetStartPosition](Graphic.md#gaca35fe1a1d344eab80ecb1425a74a91a) is not used to set the coordinates of the start point of the line, the drawing starts from the end point of the last line. **Parameters:**

Name	Description
endPoint	Indicates the end point of the straight line.
paint	Indicates the straight line style. For details, see Paint.

## DrawLine\(\) \[2/2\] ``` void OHOS::UICanvas::DrawLine (const [Point](OHOS-Point.md) & startPoint, const [Point](OHOS-Point.md) & endPoint, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws a straight line from the coordinates of the start point. **Parameters:**

Name	Description
startPoint	Indicates the coordinates of the start point.
endPoint	Indicates the coordinates of the end point.
paint	Indicates the straight line style. For details, see Paint.

## DrawRect\(\) ``` void OHOS::UICanvas::DrawRect (const [Point](OHOS-Point.md) & startPoint, int16_t height, int16_t width, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws a rectangle. **Parameters:**

Name	Description
startPoint	Indicates the coordinates of the point at the upper left corner of the rectangle.
height	Indicates the height of the rectangle.
width	Indicates the width of the rectangle.
paint	Indicates the rectangle style. For details, see Paint.

## DrawSector\(\) ``` void OHOS::UICanvas::DrawSector (const [Point](OHOS-Point.md) & center, uint16_t radius, int16_t startAngle, int16_t endAngle, const [Paint](OHOS-Paint.md) & paint ) ``` **Description:** Draws a sector. When the start angle is smaller than the end angle, the sector is drawn clockwise. Otherwise, the sector is drawn counterclockwise. **Parameters:**

Name	Description
center	Indicates the coordinates of the sector's center.
radius	Indicates the radius of the sector.
startAngle	Indicates the start angle of the sector. Value 0 indicates the 12-o'clock direction, and 90 indicates the 3-o'clock direction.
endAngle	Indicates the end angle of the sector. Value 0 indicates the 12-o'clock direction, and 90 indicates the 3-o'clock direction.
paint	Indicates the sector style. For details, see Paint.

## DumpDomNode\(\) ``` char* OHOS::UIDumpDomTree::DumpDomNode (const char * id) ``` **Description:** Exports information about a specified DOM node. **Parameters:**

Name	Description
id	Indicates the pointer to the DOM node ID.

**Returns:** Returns a character string about the DOM node information. The character string memory is released by invoking **cJSON\_free\(\)**. ## DumpDomTree\(\) \[1/2\] ``` bool OHOS::UIDumpDomTree::DumpDomTree (const char * id) ``` **Description:** Exports information about a DOM tree starting from a specified DOM node and saves the information to the default path. The default path is **DEFAULT\_DUMP\_DOM\_TREE\_PATH**. **Parameters:**

Name	Description
id	Indicates the pointer to the DOM node ID.

**Returns:** Returns **true** if the operation is successful; returns **false** otherwise. ## DumpDomTree\(\) \[2/2\] ``` bool OHOS::UIDumpDomTree::DumpDomTree (const char * id, const char * path ) ``` **Description:** Exports information about a DOM tree starting from a specified DOM node and saves the information to a specified path. **Parameters:**

Name	Description
id	Indicates the pointer to the DOM node ID.
path	Indicates the pointer to the specified path.

**Returns:** Returns **true** if the operation is successful; returns **false** otherwise. ## Enable\(\) ``` void OHOS::UIButton::Enable () ``` **Description:** Enables this button. ## EnableAutoAlign\(\) ``` void OHOS::UIList::EnableAutoAlign (bool state) ``` **Description:** Sets the automatic alignment state for this list. When a scroll stops, a child view is selected and its position is automatically aligned with the preset position. **Parameters:**

Name	Description
state	Indicates the automatic alignment state. true indicates this state is enabled, and false indicates the opposite case.

## EnableBackground\(\) ``` void OHOS::UIAbstractProgress::EnableBackground (bool enable) ``` **Description:** Sets whether the background of the progress bar is visible. **Parameters:**

Name	Description
enable	Specifies whether the background of the progress bar is visible. true (the default value) indicates that the background is visible, and false indicates the opposite case.

## EnableBottomPoint\(\) ``` void OHOS::UIChartDataSerial::EnableBottomPoint (bool enable) ``` **Description:** Enables the feature of drawing the bottom point of a polyline. If there are multiple bottom points, only the first one is drawn. **Parameters:**

Name	Description
enable	Specifies whether to draw the bottom point. Value true means to draw the bottom point, and value false means not to draw the bottom point.

## EnableGradient\(\) ``` void OHOS::UIChartDataSerial::EnableGradient (bool enable) ``` **Description:** Enables the fill color of a line chart. This function applies only to line charts. By default, the area between the polyline and the x-axis is filled. You can use **SetGradientBottom** to modify the filled region. **Parameters:**

Name	Description
enable	Specifies whether to enable the fill color. Value true means to enable the fill color, and value false means to disable the fill color. The default value is false.

## EnableHeadPoint\(\) ``` void OHOS::UIChartDataSerial::EnableHeadPoint (bool enable) ``` **Description:** Enables the feature of drawing the frontmost point on a polyline. **Parameters:**

Name	Description
enable	Specifies whether to draw the frontmost point. Value true means to draw the frontmost point, and value false means not to draw the frontmost point.

## EnableReverse\(\) ``` void OHOS::UIChart::EnableReverse (bool enable) ``` **Description:** Enables chart reverse. After the chart is reversed, the x-axis aligns with the top of the chart. The pixel position corresponding to the data point remains unchanged. Complementary filling is performed on the chart \(only the part that is not filled previously will be filled\). **Parameters:**

Name	Description
enable	Specifies whether to enable chart reverse. Value true means to enable chart reverse, and value false means not to enable chart reverse. The default value is false.

## EnableSecond\(\) ``` void OHOS::UITimePicker::EnableSecond (bool state) ``` **Description:** Sets whether to enable seconds in the time picker. **Parameters:**

Name	Description
state	Specifies whether to enable seconds in the time picker. Value true means to enable seconds, and value false means to disable seconds. The default value is false.

## EnableSmooth\(\) ``` void OHOS::UIChartDataSerial::EnableSmooth (bool smooth) ``` **Description:** Sets whether to smooth a polyline. This function applies only to line charts. After the smoothing, some data is discarded. Therefore, the polyline does not pass through all data points. If **smooth** is set to **true**, the filling color, top point, and bottom point of a line chart have deviations. Therefore, you are advised not to use these functions at the same time. **Parameters:**

Name	Description
smooth	Specifies whether to smooth a polyline. Value true means to smooth a polyline, and value false means not to smooth a polyline. The default value is false.

## EnableTopPoint\(\) ``` void OHOS::UIChartDataSerial::EnableTopPoint (bool enable) ``` **Description:** Enables the feature of drawing the top point of a polyline. If there are multiple top points, only the first one is drawn. **Parameters:**

Name	Description
enable	Specifies whether to draw the top point. Value true means to draw the top point, and value false means not to draw the top point.

## End\(\) ``` const [ListNode](OHOS-ListNode-T.md)* [OHOS::List](OHOS-List-T.md)< T >::End () const ``` **Description:** Obtains the end node address of a linked list. **Returns:** Returns the end node address. ## Event\(\) \[1/2\] ``` OHOS::Event::Event () ``` **Description:** A default constructor used to create an **[Event](OHOS-Event.md)** instance. ## Event\(\) \[2/2\] ``` OHOS::Event::Event (const [Point](OHOS-Point.md) & curPos) ``` **Description:** A constructor used to create an **[Event](OHOS-Event.md)** instance. **Parameters:**

Name	Description
pos	Indicates the position where the event occurs.

## FindSubView\(\) ``` static bool OHOS::RootView::FindSubView (const [UIView](OHOS-UIView.md) & parentView, const [UIView](OHOS-UIView.md) * subView ) ``` **Description:** Checks whether the target view is one of the child views of the specified parent view. **Parameters:**

Name	Description
parentView	Indicates the specified parent view.
subView	Indicates the target child view.

**Returns:** Returns **true** if the target view is available; returns ** false** otherwise. ## FlexLayout\(\) ``` OHOS::FlexLayout::FlexLayout () ``` **Description:** A default constructor used to create a **[FlexLayout](OHOS-FlexLayout.md)** instance. ## Format\(\) ``` virtual bool OHOS::TextFormatter::Format (int16_t value, char * outText, uint16_t textLen ) ``` **Description:** Converts the input integer into a character string for output. **Parameters:**

Name	Description
value	Indicates the input integer.
outText	Indicates the pointer to the converted string.
textLen	Indicates the length of the string.

## Front\(\) ``` const T [OHOS::List](OHOS-List-T.md)< T >::Front () const ``` **Description:** Obtains the head node data of a linked list. **Returns:** Returns the head node data. ## GetAlign\(\) ``` [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) OHOS::UILabelButton::GetAlign () const ``` **Description:** Obtains the alignment mode of this text. **Returns:** Returns the text alignment mode, as defined in **UITextLanguageAlignment**. ## GetAllChildRelativeRect\(\) ``` [Rect](OHOS-Rect.md) OHOS::UIViewGroup::GetAllChildRelativeRect () const ``` **Description:** Obtains the rectangle area of a new view group after being adaptive to the size of all child views. **Returns:** Returns the rectangle area of the new view group. ## GetArcTextCenter\(\) ``` [Point](OHOS-Point.md) OHOS::UIArcLabel::GetArcTextCenter () const ``` **Description:** Obtains the center position of this arc text. **Returns:** Returns the center position of this arc text. ## GetArcTextEndAngle\(\) ``` int16_t OHOS::UIArcLabel::GetArcTextEndAngle () const ``` **Description:** Obtains the end angle of this arc text. **Returns:** Returns the end angle of this arc text. ## GetArcTextOrientation\(\) ``` [TextOrientation](Graphic.md#ga0778527bee4a7ddd8d46395585a5cfb9) OHOS::UIArcLabel::GetArcTextOrientation () const ``` **Description:** Obtains the orientation of this arc text. **Returns:** Returns the orientation of this arc text. ## GetArcTextRadius\(\) ``` uint16_t OHOS::UIArcLabel::GetArcTextRadius () const ``` **Description:** Obtains the radius of this arc text. **Returns:** Returns the radius of this arc text. ## GetArcTextStartAngle\(\) ``` int16_t OHOS::UIArcLabel::GetArcTextStartAngle () const ``` **Description:** Obtains the start angle of this arc text. **Returns:** Returns the start angle of this arc text. ## GetBackgroundFontId\(\) ``` uint16_t OHOS::UIPicker::GetBackgroundFontId () const ``` **Description:** Obtains the font ID of the background text. **Returns:** Returns the font ID. ## GetBackgroundStyle\(\) \[1/2\] ``` const [Style](OHOS-Style.md)& OHOS::UIAbstractProgress::GetBackgroundStyle () const ``` **Description:** Obtains the background style of this progress bar. **Returns:** Returns the background style. @See SetBackgroundStyle ## GetBackgroundStyle\(\) \[2/2\] ``` int64_t OHOS::UIAbstractProgress::GetBackgroundStyle (uint8_t key) const ``` **Description:** Obtains the value of a background style of this progress bar. **Parameters:**

Name	Description
key	Indicates the key of the style.

**Returns:** Returns the value of the style. ## GetBackgroundTextColor\(\) ``` [ColorType](OHOS-Color32.md) OHOS::UIPicker::GetBackgroundTextColor () const ``` **Description:** Obtains the color of the background text. **Returns:** Returns the color. ## GetBackgroundTransparentStyle\(\) ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetBackgroundTransparentStyle () ``` **Description:** Obtains the background transparent style. **Returns:** Returns the background transparent style. ## GetBezierInterpolation\(\) ``` static int16_t OHOS::Interpolation::GetBezierInterpolation (int16_t t, int16_t u0, int16_t u1, int16_t u2, int16_t u3 ) ``` **Description:** Obtains the value calculated by the cubic Bezier equation. Use \[0, 1024\] instead of \[0, 1\] in the standard Bezier equation. The cubic Bezier equation is **B\(t\) = P0\*\(1-t\)^3 + 3\*P1\*t\*\(1-t\)^2 + 3\*P2\*t^2\*\(1-t\) + P3\*t^3**. **Parameters:**

Name	Description
t	Indicates the current change rate of the cubic Bezier curve, within [0, 1024].
u0	Indicates the coordinates for the start point of the cubic Bezier curve, within [0, 1024].
u1	Indicates the coordinates for the first control point of the cubic Bezier curve, within [0, 1024].
u2	Indicates the coordinates for the second control point of the cubic Bezier curve, within [0, 1024].
u3	Indicates the coordinates for the end point of the cubic Bezier curve, within [0, 1024].

**Returns:** Returns the coordinates for the current change rate. ## GetBlurLevel\(\) ``` BlurLevel OHOS::UIImageView::GetBlurLevel () const ``` **Description:** Obtains the blur level of this image when it is rotated or scaled. **Returns:** Returns the blur level of this image, as defined in **BlurLevel**. ## GetBottom\(\) ``` int16_t OHOS::Rect::GetBottom () const ``` **Description:** Obtains the bottom boundary coordinate of the rectangle. **Returns:** Returns the bottom boundary coordinate. ## GetBottomPointStyle\(\) ``` const [PointStyle](OHOS-UIChartDataSerial-PointStyle.md)& OHOS::UIChartDataSerial::GetBottomPointStyle () const ``` **Description:** Obtains the style of the bottom point of a polyline. **Returns:** Returns the style of the point. For details, see [PointStyle](OHOS-UIChartDataSerial-PointStyle.md). ## GetBoxRect\(\) ``` [Rect](OHOS-Rect.md) OHOS::TransformMap::GetBoxRect () const ``` **Description:** Obtains the minimum rectangle that can contain a polygon. All vertices of the polygon are inside this rectangle. **Returns:** Returns the minimum rectangle that can contain the polygon. ## GetBrightColorStyle\(\) ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetBrightColorStyle () ``` **Description:** Obtains the bright color style. **Returns:** Returns the bright color style. ## GetBrightStyle\(\) ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetBrightStyle () ``` **Description:** Obtains the bright style. **Returns:** Returns the bright style. ## GetButtonInactivedStyle\(\) ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetButtonInactivedStyle () ``` **Description:** Obtains the button inactived style. **Returns:** Returns the button inactived style. ## GetButtonPressedStyle\(\) ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetButtonPressedStyle () ``` **Description:** Obtains the button pressed style. **Returns:** Returns the button pressed style. ## GetButtonReleasedStyle\(\) ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetButtonReleasedStyle () ``` **Description:** Obtains the button released style. **Returns:** Returns the button released style. ## GetButtonStyle\(\) ``` [ButtonStyle](OHOS-ButtonStyle.md)& OHOS::Theme::GetButtonStyle () ``` **Description:** Obtains the style of this button. **Returns:** Returns the button style. ## GetCenterPosition\(\) ``` [Point](OHOS-Point.md) OHOS::UICircleProgress::GetCenterPosition () const ``` **Description:** Obtains the coordinates of the center point for this circular progress bar. The coordinates of the center point refer to the position relative to the view. **Returns:** Returns the coordinates of the center point. **See also:** [SetCenterPosition](Graphic.md#ga6cf6b8ab0934ce8c0ea1821da0791317) ## GetChildById\(\) \[1/2\] ``` virtual [UIView](OHOS-UIView.md)* OHOS::UIView::GetChildById (const char * id) const ``` **Description:** Obtains the child view of a specified ID. Reimplemented in [OHOS::UIViewGroup](Graphic.md#gae9f6ddb5819392546463d6371147c486). **Returns:** Returns the pointer to the child view. ## GetChildById\(\) \[2/2\] ``` [UIView](OHOS-UIView.md)* OHOS::UIViewGroup::GetChildById (const char * id) const ``` **Description:** Obtains the target child view with a specified ID. Reimplemented from [OHOS::UIView](Graphic.md#ga0573aa25307c22319db4629781b5cad2). **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the target child view.

**Returns:** Returns the target child view if available; returns **nullptr** otherwise. ## GetChildrenHead\(\) ``` [UIView](OHOS-UIView.md)* OHOS::UIViewGroup::GetChildrenHead () const ``` **Description:** Obtains the first child view in this view group. **Returns:** Returns the first child view. ## GetChildrenTail\(\) ``` [UIView](OHOS-UIView.md)* OHOS::UIViewGroup::GetChildrenTail () const ``` **Description:** Obtains the last child view in this view group. **Returns:** Returns the last child view. ## GetClockWise\(\) ``` bool OHOS::TransformMap::GetClockWise () const ``` **Description:** Checks whether the vertex coordinates of a polygon are clockwise. **Returns:** Returns **true** if the vertex coordinates are clockwise; returns **false** otherwise. ## GetColorFromRGB\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::GetColorFromRGB (uint8_t r8, uint8_t g8, uint8_t b8 ) ``` **Description:** Obtains the color based on the RGB color value. **Parameters:**

Name	Description
r8	Indicates the intensity of red.
g8	Indicates the intensity of green.
b8	Indicates the intensity of blue.

**Returns:** Returns the color data generated. ## GetColorFromRGBA\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::GetColorFromRGBA (uint8_t r8, uint8_t g8, uint8_t b8, uint8_t alpha ) ``` **Description:** Obtains the color based on the RGBA color value. **Parameters:**

Name	Description
r8	Indicates the intensity of red.
g8	Indicates the intensity of green.
b8	Indicates the intensity of blue.
alpha	Indicates the alpha, that is, how opaque each pixel is.

**Returns:** Returns the color data generated. ## GetContentRect\(\) \[1/2\] ``` virtual [Rect](OHOS-Rect.md) OHOS::UIView::GetContentRect () ``` **Description:** Obtains the content of the absolute rectangle area of the view. This area excludes padding. Reimplemented in [OHOS::UIButton](Graphic.md#ga93994f4d735e4f9a7d3e7d737e2c620c). **Returns:** Returns the content of the absolute rectangle area. ## GetContentRect\(\) \[2/2\] ``` virtual [Rect](OHOS-Rect.md) OHOS::UIButton::GetContentRect () ``` **Description:** Obtains a rectangular area that contains coordinate information. Reimplemented from [OHOS::UIView](Graphic.md#ga9db88eae712676359d02a92be14fa316). **Returns:** Returns the rectangle area. ## GetCount\(\) \[1/2\] ``` virtual uint16_t OHOS::TextAdapter::GetCount () ``` **Description:** Obtains the **data** size of the [UILabel](OHOS-UILabel.md) adapter. Implements [OHOS::AbstractAdapter](Graphic.md#ga67021b360d4097c475d5e24519b5276d). **Returns:** Returns the **data** size of the [UILabel](OHOS-UILabel.md) adapter. ## GetCount\(\) \[2/2\] ``` virtual uint16_t OHOS::AbstractAdapter::GetCount () ``` **Description:** Obtains the number of adapter data items. Implemented in [OHOS::TextAdapter](Graphic.md#gaa8d1098628c391a687b08f4ccdba0a4d). **Returns:** Returns the number of adapter data items. ## GetCurImageSrc\(\) ``` const [Image](OHOS-Image.md)* OHOS::UIButton::GetCurImageSrc () const ``` **Description:** Obtains the image for the current button state. **Returns:** Returns the image for the current button state. ## GetCurrent\(\) ``` [Theme](OHOS-Theme.md)* OHOS::ThemeManager::GetCurrent () ``` **Description:** Obtains the current screen theme of this application. **Returns:** Returns the current theme if available; returns **nullptr** otherwise. ## GetCurrentHour\(\) ``` uint8_t OHOS::UIAbstractClock::GetCurrentHour () const ``` **Description:** Obtains the current number of hours. **Returns:** Returns the current number of hours. ## GetCurrentMinute\(\) ``` uint8_t OHOS::UIAbstractClock::GetCurrentMinute () const ``` **Description:** Obtains the current number of minutes. **Returns:** Returns the current number of minutes. ## GetCurrentPage\(\) ``` uint16_t OHOS::UISwipeView::GetCurrentPage () const ``` **Description:** Obtains the current tab index. **Returns:** Returns the current tab index. ## GetCurrentPos\(\) ``` const [Point](OHOS-Point.md)& OHOS::Event::GetCurrentPos () const ``` **Description:** Obtains the position where an event occurs. **Returns:** Returns the position. ## GetCurrentSecond\(\) ``` uint8_t OHOS::UIAbstractClock::GetCurrentSecond () const ``` **Description:** Obtains the current number of seconds. **Returns:** Returns the current number of seconds. ## GetCurrentView\(\) ``` [UIView](OHOS-UIView.md)* OHOS::UISwipeView::GetCurrentView () const ``` **Description:** Obtains the current view. **Returns:** Returns the current view. ## GetData\(\) ``` const T* [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::GetData () const ``` **Description:** Obtains the 3 x 3 matrix data. **Returns:** Returns the 3 x 3 matrix data. ## GetDataCount\(\) ``` uint16_t OHOS::UIChartDataSerial::GetDataCount () const ``` **Description:** Obtains the number of data points available in the data set. **Returns:** Returns the number of data points. ## GetDefaultStyle\(\) ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetDefaultStyle () ``` **Description:** Obtains the default style. **Returns:** Returns the default style. ## GetDeltaX\(\) ``` int16_t OHOS::DragEvent::GetDeltaX () const ``` **Description:** Obtains the difference between the current position and the last position of the view in the x-axis. **Returns:** Returns the different in the x-aix. ## GetDeltaY\(\) ``` int16_t OHOS::DragEvent::GetDeltaY () const ``` **Description:** Obtains the difference between the current position and the last position of the view in the y-axis. **Returns:** Returns the different in the y-aix. ## GetDirect\(\) \[1/4\] ``` [UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) OHOS::UIArcLabel::GetDirect () ``` **Description:** Obtains the direction of this text. **Returns:** Returns the text direction, as defined in **UITextLanguageDirect**. ## GetDirect\(\) \[2/4\] ``` [UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) OHOS::Text::GetDirect () const ``` **Description:** Obtains the direction of this text. **Returns:** Returns the text direction, as defined in **UITextLanguageDirect**. ## GetDirect\(\) \[3/4\] ``` [UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) OHOS::UILabelButton::GetDirect () const ``` **Description:** Obtains the direction of this text. **Returns:** Returns the text direction, as defined in **UITextLanguageDirect**. ## GetDirect\(\) \[4/4\] ``` [UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) OHOS::UILabel::GetDirect () const ``` **Description:** Obtains the direction of this text. **Returns:** Returns the text direction, as defined in **UITextLanguageDirect**. ## GetDirection\(\) \[1/3\] ``` uint8_t OHOS::UIAbstractScroll::GetDirection () const ``` **Description:** Obtains the scroll direction. **Returns:** Returns the scroll direction, either **HORIZONTAL** or **VERTICAL**. ## GetDirection\(\) \[2/3\] ``` uint8_t OHOS::UISwipeView::GetDirection () const ``` **Description:** Obtains the dragging direction. **Returns:** Returns the dragging direction. ## GetDirection\(\) \[3/3\] ``` [Direction](Graphic.md#ga4a7a2c192206c8b18379f42a5fd176eb) OHOS::UIBoxProgress::GetDirection () const ``` **Description:** Obtains the direction of this progress bar. **Returns:** Returns the direction of this progress bar, as defined in [Direction](Graphic.md#ga4a7a2c192206c8b18379f42a5fd176eb). **See also:** [SetDirection](Graphic.md#ga3e2e7d0c37b4945a3f4f456c20cb0177) ## GetDisplayMode\(\) ``` [DisplayMode](Graphic.md#gabe3b64b11e5bf5d7b54e1039e40f306b) OHOS::UIDigitalClock::GetDisplayMode () const ``` **Description:** Obtains the display mode of this digital clock. **Returns:** Returns the display mode of this digital clock. ## GetDragACCLevel\(\) ``` uint8_t OHOS::UIAbstractScroll::GetDragACCLevel () const ``` **Description:** Obtains the drag acceleration. **Returns:** Returns the drag acceleration. ## GetDragDirection\(\) ``` uint8_t OHOS::DragEvent::GetDragDirection () const ``` **Description:** Obtains the direction in the drag event. **Returns:** Returns the direction. Available values are as follows: **0** indicates dragging from left to right. **1** indicates dragging from right to left. **2** indicates dragging from top to bottom. **3** indicates dragging from bottom to top. ## GetEllipsisIndex\(\) ``` uint16_t OHOS::Text::GetEllipsisIndex (const [Rect](OHOS-Rect.md) & textRect, const [Style](OHOS-Style.md) & style ) ``` **Description:** Obtains the index of the character from where text will be replaced by ellipses based on the text rectangle and style. **Parameters:**

Name	Description
textRect	Indicates the text rectangle.
style	Indicates the text style.

## GetEndAngle\(\) ``` int16_t OHOS::UICircleProgress::GetEndAngle () const ``` **Description:** Obtains the end angle. **Returns:** Returns the end angle. **See also:** [SetEndAngle](Graphic.md#ga831186bf208f8236b006b13cc122c82c) ## GetFillColor\(\) \[1/2\] ``` [ColorType](OHOS-Color32.md) OHOS::Paint::GetFillColor () const ``` **Description:** Obtains the fill color. **Returns:** Returns the fill color. **See also:** [SetFillColor](Graphic.md#gab1b0e3a5e21ce2ec8454311ed31956ae) ## GetFillColor\(\) \[2/2\] ``` [ColorType](OHOS-Color32.md) OHOS::UIChartDataSerial::GetFillColor () const ``` **Description:** Obtains the fill color of the data set. **Returns:** Returns the fill color. **See also:** [SetFillColor](Graphic.md#gac620b9878a5e28d066dffbcd6145539c) ## GetFontId\(\) \[1/5\] ``` uint8_t OHOS::TextAdapter::GetFontId () const ``` **Description:** Obtains font ID. **Returns:** Returns the font ID. For details, see **UITextLanguageFontId**. ## GetFontId\(\) \[2/5\] ``` uint8_t OHOS::Text::GetFontId () const ``` **Description:** Obtains the font ID. **Returns:** Returns the front ID. ## GetFontId\(\) \[3/5\] ``` uint8_t OHOS::UIArcLabel::GetFontId () const ``` **Description:** Obtains the font ID composed of font name and size. **Returns:** Returns the front ID of this arc label. ## GetFontId\(\) \[4/5\] ``` uint8_t OHOS::UILabelButton::GetFontId () const ``` **Description:** Obtains the font ID. **Returns:** Returns the front ID composed of the font name and size. ## GetFontId\(\) \[5/5\] ``` uint8_t OHOS::UILabel::GetFontId () const ``` **Description:** Obtains the font ID composed of font name and size. **Returns:** Returns the front ID of this label. ## GetForegroundStyle\(\) \[1/2\] ``` const [Style](OHOS-Style.md)& OHOS::UIAbstractProgress::GetForegroundStyle () const ``` **Description:** Obtains the foreground style of this progress bar. **Returns:** Returns the foreground style. @See SetForegroundStyle ## GetForegroundStyle\(\) \[2/2\] ``` int64_t OHOS::UIAbstractProgress::GetForegroundStyle (uint8_t key) const ``` **Description:** Obtains the value of a foreground style of this progress bar. **Parameters:**

Name	Description
key	Indicates the key of the style.

**Returns:** Returns the value of the style. ## GetFPS\(\) ``` static float OHOS::SysInfo::GetFPS () ``` **Description:** Obtains the FPS data. **Returns:** Returns the FPS data. ## GetFPSCalculateType\(\) ``` [FPSCalculateType](Graphic.md#ga75d850e3abff6c2f617b689a0cb9a3d1) OHOS::SysInfo::OnFPSChangedListener::GetFPSCalculateType () const ``` **Description:** Obtains the FPS sampling type. **Returns:** Returns the FPS sampling type. For details, see [FPSCalculateType](Graphic.md#ga75d850e3abff6c2f617b689a0cb9a3d1). ## GetHandCurrentAngle\(\) ``` uint16_t OHOS::UIAnalogClock::GetHandCurrentAngle ([HandType](Graphic.md#ga13cf64ea5bd39550976aaf65b1381edf) type) const ``` **Description:** Obtains the current rotation angle of the specified clock hand. **Parameters:**

Name	Description
type	Indicates the clock hand type, as enumerated in HandType.

**Returns:** Returns the current rotation angle of this specified clock hand. ## GetHandInitAngle\(\) ``` uint16_t OHOS::UIAnalogClock::GetHandInitAngle ([HandType](Graphic.md#ga13cf64ea5bd39550976aaf65b1381edf) type) const ``` **Description:** Obtains the initial rotation angle of the specified clock hand. **Parameters:**

Name	Description
type	Indicates the clock hand type, as enumerated in HandType.

**Returns:** Returns the initial rotation angle of this specified clock hand. ## GetHandPosition\(\) ``` [Point](OHOS-Point.md) OHOS::UIAnalogClock::GetHandPosition ([HandType](Graphic.md#ga13cf64ea5bd39550976aaf65b1381edf) type) const ``` **Description:** Obtains the position of a specified clock hand. **Parameters:**

Name	Description
type	Indicates the clock hand type, as enumerated in HandType.

**Returns:** Returns the position of this specified clock hand. ## GetHandRotateCenter\(\) ``` [Point](OHOS-Point.md) OHOS::UIAnalogClock::GetHandRotateCenter ([HandType](Graphic.md#ga13cf64ea5bd39550976aaf65b1381edf) type) const ``` **Description:** Obtains the rotation center of a specified clock hand. **Parameters:**

Name	Description
type	Indicates the clock hand type, as enumerated in HandType.

**Returns:** Returns the rotation center. ## GetHeader\(\) ``` void OHOS::Image::GetHeader ([ImageHeader](OHOS-ImageHeader.md) & header) const ``` **Description:** Obtains the basic image information, including the image format, width, and height. **Parameters:**

Name	Description
header	Indicates the basic image information.

## GetHeadPointStyle\(\) ``` const [PointStyle](OHOS-UIChartDataSerial-PointStyle.md)& OHOS::UIChartDataSerial::GetHeadPointStyle () const ``` **Description:** Obtains the style of the frontmost point on a polyline. **Returns:** Returns the style of the point. For details, see [PointStyle](OHOS-UIChartDataSerial-PointStyle.md). ## GetHeight\(\) \[1/7\] ``` uint16_t OHOS::Screen::GetHeight () ``` **Description:** Obtains the height of this screen. **Returns:** Returns the screen height. ## GetHeight\(\) \[2/7\] ``` virtual int16_t OHOS::UIView::GetHeight () ``` **Description:** Obtains the height for the view. Reimplemented in [OHOS::UIButton](Graphic.md#ga1f8015706cfc73728696bf2bbd3e833b), [OHOS::UILabel](Graphic.md#ga148f6d32ed06364dbee0190f6ff77b59), [OHOS::UIArcLabel](Graphic.md#ga37dbe21b6a8206460136b18a2d0e3f65), and [OHOS::UIImageView](Graphic.md#gaddc6e68c67782eaad40977c6c2256cdd). **Returns:** Returns the view height. ## GetHeight\(\) \[3/7\] ``` int16_t OHOS::Rect::GetHeight () const ``` **Description:** Obtains the rectangle height. **Returns:** Returns the rectangle height. ## GetHeight\(\) \[4/7\] ``` int16_t OHOS::UIImageView::GetHeight () ``` **Description:** Obtains the height of this image view. Reimplemented from [OHOS::UIView](Graphic.md#ga9b35f4603a561c7a9a29b023a022ac97). **Returns:** Returns the height of this image view. ## GetHeight\(\) \[5/7\] ``` int16_t OHOS::UIArcLabel::GetHeight () ``` **Description:** Obtains the height of this arc text. Reimplemented from [OHOS::UIView](Graphic.md#ga9b35f4603a561c7a9a29b023a022ac97). **Returns:** Returns the height of this arc text. ## GetHeight\(\) \[6/7\] ``` int16_t OHOS::UILabel::GetHeight () ``` **Description:** Obtains the height of this label. Reimplemented from [OHOS::UIView](Graphic.md#ga9b35f4603a561c7a9a29b023a022ac97). **Returns:** Returns the label height. ## GetHeight\(\) \[7/7\] ``` int16_t OHOS::UIButton::GetHeight () ``` **Description:** Obtains the height of this image. Reimplemented from [OHOS::UIView](Graphic.md#ga9b35f4603a561c7a9a29b023a022ac97). **Returns:** Returns the image height. ## GetHideCount\(\) ``` uint16_t OHOS::UIChartDataSerial::GetHideCount () const ``` **Description:** Obtains the number of hidden points in the data set. **Returns:** Returns the number of hidden points. **See also:** [HidePoint](Graphic.md#ga02cb658da66c73863ac2a49849e23b24) ## GetHideIndex\(\) ``` uint16_t OHOS::UIChartDataSerial::GetHideIndex () const ``` **Description:** Obtains the index from which the data set starts to hide. **Returns:** Returns the index. **See also:** [HidePoint](Graphic.md#ga02cb658da66c73863ac2a49849e23b24) ## GetHighlightFontId\(\) ``` uint16_t OHOS::UIPicker::GetHighlightFontId () const ``` **Description:** Obtains the font ID of the highlighted text. **Returns:** Returns the font ID. ## GetHighlightTextColor\(\) ``` [ColorType](OHOS-Color32.md) OHOS::UIPicker::GetHighlightTextColor () const ``` **Description:** Obtains the color of the highlighted text. **Returns:** Returns the color of the highlighted text. ## GetHorAlign\(\) \[1/3\] ``` [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) OHOS::UIArcLabel::GetHorAlign () const ``` **Description:** Obtains the horizontal alignment mode. **Returns:** Returns the horizontal alignment mode. ## GetHorAlign\(\) \[2/3\] ``` [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) OHOS::Text::GetHorAlign () const ``` **Description:** Obtains the horizontal alignment mode. **Returns:** Returns the horizontal alignment mode. ## GetHorAlign\(\) \[3/3\] ``` [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) OHOS::UILabel::GetHorAlign () const ``` **Description:** Obtains the horizontal alignment mode. **Returns:** Returns the horizontal alignment mode. ## GetHorizontalScrollState\(\) ``` bool OHOS::UIScrollView::GetHorizontalScrollState () const ``` **Description:** Checks whether a horizontal scroll is enabled. **Returns:** Returns **true** if a horizontal scroll is enabled; returns **false** otherwise. ## GetImageAnimatorImageNum\(\) ``` uint8_t OHOS::UIImageAnimatorView::GetImageAnimatorImageNum () const ``` **Description:** Obtains the number of images. **Returns:** Returns the number of images. ## GetImageAnimatorSrc\(\) ``` const [ImageAnimatorInfo](OHOS-ImageAnimatorInfo.md)* OHOS::UIImageAnimatorView::GetImageAnimatorSrc () const ``` **Description:** Obtains the image array of this frame animator. **Returns:** Returns a pointer to the [ImageAnimatorInfo](OHOS-ImageAnimatorInfo.md) array if the operation is successful; returns **nullptr** otherwise. ## GetImageInfo\(\) \[1/2\] ``` const [ImageInfo](OHOS-ImageInfo.md)* OHOS::Image::GetImageInfo () const ``` **Description:** Obtains the image information in an array. **Returns:** Returns the pointer to the image information. ## GetImageInfo\(\) \[2/2\] ``` const [ImageInfo](OHOS-ImageInfo.md)* OHOS::UIImageView::GetImageInfo () const ``` **Description:** 获取图片信息 **Returns:** 图片信息 ## GetImageX\(\) ``` int16_t OHOS::UIButton::GetImageX () const ``` **Description:** Obtains the x-coordinate of this image. **Returns:** Returns the x-coordinate of this image. ## GetImageY\(\) ``` int16_t OHOS::UIButton::GetImageY () const ``` **Description:** Obtains the y-coordinate of this image. **Returns:** Returns the y-coordinate of this image. ## GetInstance\(\) \[1/5\] ``` static [Screen](OHOS-Screen.md)& OHOS::Screen::GetInstance () ``` **Description:** Obtains a singleton **[Screen](OHOS-Screen.md)** instance. **Returns:** Returns the **[Screen](OHOS-Screen.md)** instance. ## GetInstance\(\) \[2/5\] ``` static [ThemeManager](OHOS-ThemeManager.md)& OHOS::ThemeManager::GetInstance () ``` **Description:** Obtains the singleton instance of the **[ThemeManager](OHOS-ThemeManager.md)** class. **Returns:** Returns the singleton instance of the **[ThemeManager](OHOS-ThemeManager.md)** class. ## GetInstance\(\) \[3/5\] ``` static [RootView](OHOS-RootView.md)* OHOS::RootView::GetInstance () ``` **Description:** Obtains a singleton **[RootView](OHOS-RootView.md)** instance. **Returns:** Returns the singleton **[RootView](OHOS-RootView.md)** instance. ## GetInstance\(\) \[4/5\] ``` static [UIDumpDomTree](OHOS-UIDumpDomTree.md)* OHOS::UIDumpDomTree::GetInstance () ``` **Description:** Obtains an instance in singleton pattern. **Returns:** Returns the function instance for exporting DOM information. ## GetInstance\(\) \[5/5\] ``` static [AnimatorManager](OHOS-AnimatorManager.md)* OHOS::AnimatorManager::GetInstance () ``` **Description:** Obtains the **[AnimatorManager](OHOS-AnimatorManager.md)** instance. **Returns:** Returns the **[AnimatorManager](OHOS-AnimatorManager.md)** instance. ## GetInterval\(\) ``` virtual uint16_t OHOS::UIRepeatButton::GetInterval () const ``` **Description:** Obtains the interval between two consecutive click events. **Returns:** Returns the interval between two consecutive click events. ## GetKeyId\(\) ``` uint16_t OHOS::KeyEvent::GetKeyId () const ``` **Description:** Obtains the key ID. ## GetKnobStyle\(\) \[1/2\] ``` const [Style](OHOS-Style.md)& OHOS::UISlider::GetKnobStyle () const ``` **Description:** Obtains the knob style. **Returns:** Returns the knob style. ## GetKnobStyle\(\) \[2/2\] ``` int64_t OHOS::UISlider::GetKnobStyle (uint8_t key) const ``` **Description:** Obtains the value of a knob style. **Parameters:**

Name	Description
key	Indicates the key of the style.

**Returns:** Returns the value of the style. ## GetKnobWidth\(\) ``` int16_t OHOS::UISlider::GetKnobWidth () ``` **Description:** Obtains the knob width. **Returns:** Returns the knob width. **See also:** [SetKnobWidth](Graphic.md#gaf0de71e2d767ccfc3cb41679185a5529) ## GetLabelPosition\(\) ``` [Point](OHOS-Point.md) OHOS::UILabelButton::GetLabelPosition () const ``` **Description:** Obtains the position of this label relative to the button holding it. **Returns:** Returns the position of this label. ## GetLabelStyle\(\) \[1/4\] ``` [Style](OHOS-Style.md)& OHOS::Theme::GetLabelStyle () ``` **Description:** Obtains the style of this label. **Returns:** Returns the label style. ## GetLabelStyle\(\) \[2/4\] ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetLabelStyle () ``` **Description:** Obtains the label style. **Returns:** Returns the label style. ## GetLabelStyle\(\) \[3/4\] ``` const [Style](OHOS-Style.md)& OHOS::UILabelButton::GetLabelStyle () const ``` **Description:** Obtains the style of this label. **Returns:** Returns the label style. ## GetLabelStyle\(\) \[4/4\] ``` int64_t OHOS::UILabelButton::GetLabelStyle (uint8_t key) const ``` **Description:** Obtains the value of a style of this label. **Parameters:**

Name	Description
key	Indicates the key of the style.

**Returns:** Returns the value of the style. ## GetLastPoint\(\) ``` const [Point](OHOS-Point.md)& OHOS::DragEvent::GetLastPoint () const ``` **Description:** Obtains the coordinates of the last position in the drag event. **Returns:** Returns the coordinates of the last position. ## GetLastRun\(\) ``` uint32_t OHOS::Task::GetLastRun () const ``` **Description:** Obtains the end time of this task. **Returns:** Returns the end time. ## GetLatestIndex\(\) ``` uint16_t OHOS::UIChartDataSerial::GetLatestIndex () const ``` **Description:** Obtains the index of the frontmost point \(the latest added or modified data point in a data set\). **Returns:** Returns the index of the frontmost point. ## GetLeft\(\) ``` int16_t OHOS::Rect::GetLeft () const ``` **Description:** Obtains the left boundary coordinate of the rectangle. **Returns:** Returns the left boundary coordinate. ## GetLibDsc\(\) ``` std::string OHOS::GetLibDsc () ``` **Description:** Obtains the library description of the graphics module. **Returns:** Returns the library description of the graphics module. ## GetLineBreakMode\(\) ``` uint8_t OHOS::UILabel::GetLineBreakMode () const ``` **Description:** Obtains the line break mode of this text. **Returns:** Returns the line break mode. ## GetLineColor\(\) ``` [ColorType](OHOS-Color32.md) OHOS::UIChartDataSerial::GetLineColor () const ``` **Description:** Obtains the polyline color of the data set in a line chart. **Returns:** Returns the polyline color of the data set. **See also:** [SetLineColor](Graphic.md#ga94beac0c71885b8546996271c876f999) ## GetLoopState\(\) ``` bool OHOS::UIList::GetLoopState () const ``` **Description:** Checks whether this list is in a loop state. **Returns:** Returns if the list is in the loop state; returns **false** if the list is in the common state. ## GetMainStyle\(\) ``` [Style](OHOS-Style.md)& OHOS::Theme::GetMainStyle () ``` **Description:** Obtains the basic style. **Returns:** Returns the basic style. ## GetMaskedRect\(\) ``` [Rect](OHOS-Rect.md) OHOS::UIView::GetMaskedRect () const ``` **Description:** Obtains the valid absolute rectangle area of the view. The valid area refers to the area where the view can be displayed. Generally, the valid area is the same as the visible view area, but they may be different in the grid layout. **Returns:** Returns the valid absolute rectangle area. ## GetMaxScrollDistance\(\) ``` uint16_t OHOS::UIAbstractScroll::GetMaxScrollDistance () const ``` **Description:** Obtains the maximum scroll distance after a finger lifts the screen. **Returns:** Returns the maximum scroll distance. The default value is **0**, indicating that the scroll distance is not limited. ## GetMixColor\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::GetMixColor ([ColorType](OHOS-Color32.md) c1, [ColorType](OHOS-Color32.md) c2, uint8_t mix ) ``` **Description:** Mixes two colors \(color 1 and color 2\) based on a specified opacity. **Parameters:**

Name	Description
c1	Indicates color 1.
c2	Indicates color 2.
mix	Indicates the alpha, that is, how opaque each pixel is.

**Returns:** Returns the color data after mixing. ## GetName\(\) ``` const char* OHOS::UIRadioButton::GetName () const ``` **Description:** Obtains the name of this radio button. **Returns:** Returns the name of this radio button, which is a defined character string. Radio buttons sharing the same name are in the same batch from which only one can be selected. ## GetNextSibling\(\) ``` [UIView](OHOS-UIView.md)* OHOS::UIView::GetNextSibling () const ``` **Description:** Obtains the next sibling view of the view. **Returns:** Returns the pointer to the next sibling view. ## GetOnClickListener\(\) ``` [OnClickListener](OHOS-UIView-OnClickListener.md)*& OHOS::UIView::GetOnClickListener () ``` **Description:** Obtains the click event listener for the view. **Returns:** Returns the click event listener. ## GetOnDragListener\(\) ``` [OnDragListener](OHOS-UIView-OnDragListener.md)*& OHOS::UIView::GetOnDragListener () ``` **Description:** Obtains the drag event listener for the view. **Returns:** Returns the drag event listener. ## GetOnLongPressListener\(\) ``` [OnLongPressListener](OHOS-UIView-OnLongPressListener.md)*& OHOS::UIView::GetOnLongPressListener () ``` **Description:** Obtains the long-press event listener for the view. **Returns:** Returns the long-press event listener. ## GetOnSwipeListener\(\) ``` [OnSwipeListener](OHOS-UISwipeView-OnSwipeListener.md)*& OHOS::UISwipeView::GetOnSwipeListener () ``` **Description:** Obtains the listener set for swipe events. **Returns:** Returns the swipe event listener. ## GetOpacity\(\) \[1/2\] ``` uint8_t OHOS::UIDigitalClock::GetOpacity () const ``` **Description:** Obtains the opacity of this digital clock. **Returns:** Returns the opacity of this digital clock, within \[0, 255\]. ## GetOpacity\(\) \[2/2\] ``` uint8_t OHOS::Paint::GetOpacity () const ``` **Description:** Obtains the opacity. **Returns:** Returns the opacity. **See also:** [SetOpacity](Graphic.md#gacd329fb89bbf6f0e3fd4f9a61f4ce60f) ## GetOrigRect\(\) ``` [Rect](OHOS-Rect.md) OHOS::UIView::GetOrigRect () const ``` **Description:** Obtains the absolute rectangle area of the view. **Returns:** Returns the absolute rectangle area. ## GetParent\(\) ``` [UIView](OHOS-UIView.md)* OHOS::UIView::GetParent () const ``` **Description:** Obtains the parent view of the view. **Returns:** Returns the pointer to the parent view. ## GetPath\(\) \[1/2\] ``` const char* OHOS::Image::GetPath () const ``` **Description:** Obtains the image path in binary. **Returns:** Returns the pointer to the image path. ## GetPath\(\) \[2/2\] ``` const char* OHOS::UIImageView::GetPath () const ``` **Description:** 获取图片路径 **Returns:** 图片路径 ## GetPeakData\(\) ``` int16_t OHOS::UIChartDataSerial::GetPeakData () const ``` **Description:** Obtains the Y value of the top point in a data set. The Y value is the data added by users, not the pixel coordinate. **Returns:** Returns the Y value. ## GetPeakIndex\(\) ``` uint16_t OHOS::UIChartDataSerial::GetPeakIndex () const ``` **Description:** Obtains the index of the top point in the data set. **Returns:** Returns the index of the top point. If there are multiple top points, the first one is returned. ## GetPeriod\(\) ``` uint32_t OHOS::Task::GetPeriod () const ``` **Description:** Obtains the running period of this task. **Returns:** Returns the running period. ## GetPickerBackgroundStyle\(\) \[1/2\] ``` [Style](OHOS-Style.md)& OHOS::Theme::GetPickerBackgroundStyle () ``` **Description:** Obtains the background style of this picker. **Returns:** Returns the background style of this picker. ## GetPickerBackgroundStyle\(\) \[2/2\] ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetPickerBackgroundStyle () ``` **Description:** Obtains the picker background style. **Returns:** Returns the picker background style. ## GetPickerHighlightStyle\(\) \[1/2\] ``` [Style](OHOS-Style.md)& OHOS::Theme::GetPickerHighlightStyle () ``` **Description:** Obtains the highlight style of this picker. **Returns:** Returns the highlight style of this picker. ## GetPickerHighlightStyle\(\) \[2/2\] ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetPickerHighlightStyle () ``` **Description:** Obtains the picker highlight style. **Returns:** Returns the picker highlight style. ## GetPivot\(\) ``` [Point](OHOS-Point.md) OHOS::TransformMap::GetPivot () const ``` **Description:** Obtains the pivot for the rotation or scaling operation. **Returns:** Returns the pivot. ## GetPoint\(\) ``` bool OHOS::UIChartDataSerial::GetPoint (uint16_t index, [Point](OHOS-Point.md) & point ) ``` **Description:** Obtains the coordinates in the chart for a data point in the data set. **Parameters:**

Name	Description
index	Indicates the index of the data point to obtain.
point	Indicates the obtained coordinates. If the data set is not added to the chart, the original value of the data point is printed.

**Returns:** Returns **true** if the operation is successful; returns **false** otherwise. ## GetPolygon\(\) ``` [Polygon](OHOS-Polygon.md) OHOS::TransformMap::GetPolygon () const ``` **Description:** Obtains the polygon after rectangle transformation. **Returns:** Returns the polygon. ## GetPreLastPoint\(\) ``` const [Point](OHOS-Point.md)& OHOS::DragEvent::GetPreLastPoint () const ``` **Description:** Obtains the coordinates of the stay position before the last position in the drag event. **Returns:** Returns the coordinates of the stay position. ## GetProgressBackgroundStyle\(\) \[1/2\] ``` [Style](OHOS-Style.md)& OHOS::Theme::GetProgressBackgroundStyle () ``` **Description:** Obtains the background style of this progress bar. **Returns:** Returns the background style of this progress bar. ## GetProgressBackgroundStyle\(\) \[2/2\] ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetProgressBackgroundStyle () ``` **Description:** Obtains the progress background style. **Returns:** Returns the progress background style. ## GetProgressForegroundStyle\(\) \[1/2\] ``` [Style](OHOS-Style.md)& OHOS::Theme::GetProgressForegroundStyle () ``` **Description:** Obtains the foreground style of this progress bar. **Returns:** Returns the foreground style of this progress bar. ## GetProgressForegroundStyle\(\) \[2/2\] ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetProgressForegroundStyle () ``` **Description:** Obtains the progress foreground style. **Returns:** Returns the progress foreground style. ## GetRadius\(\) ``` uint16_t OHOS::UICircleProgress::GetRadius () const ``` **Description:** Obtains the outer radius of this circular progress bar. **Returns:** Returns the outer radius. **See also:** [SetRadius](Graphic.md#ga80377fb579f6698cefd5fcf74d0cde46) ## GetRangeMax\(\) ``` int16_t OHOS::UIAbstractProgress::GetRangeMax () const ``` **Description:** Obtains the maximum value of this progress bar. **Returns:** Returns the maximum value of this progress bar. **See also:** [SetRange](Graphic.md#ga089e3875453011499ad33ed89a44a699) | [GetRangeMin](Graphic.md#ga68ab733afcf4224a799ccad2092d1d23) ## GetRangeMin\(\) ``` int16_t OHOS::UIAbstractProgress::GetRangeMin () const ``` **Description:** Obtains the minimum value of this progress bar. **Returns:** Returns the minimum value of this progress bar. **See also:** [SetRange](Graphic.md#ga089e3875453011499ad33ed89a44a699) | [GetRangeMax](Graphic.md#ga1840199f22d5d3e4ef58e41ac8f4febc) ## GetRect\(\) ``` [Rect](OHOS-Rect.md) OHOS::UIView::GetRect () const ``` **Description:** Obtains the absolute rectangle area of the view. When the view has deformation such as rotation, the rectangle area is the intersection set of the absolute rectangle area and deformation matrix. **Returns:** Returns the absolute rectangle area. ## GetRelativeRect\(\) ``` [Rect](OHOS-Rect.md) OHOS::UIView::GetRelativeRect () const ``` **Description:** Obtains the rectangular area of the view relative to the parent view, that is, the rectangular area relative to the coordinates of the parent view. **Returns:** Returns the rectangle area relative to the parent view. ## GetRepeatTimes\(\) ``` uint32_t OHOS::UIImageAnimatorView::GetRepeatTimes () const ``` **Description:** Obtains the playback times. **Returns:** Returns the playback times. **See also:** [SetRepeatTimes](Graphic.md#ga8d0a02c46af6bea17323c715620b6212) ## GetRight\(\) ``` int16_t OHOS::Rect::GetRight () const ``` **Description:** Obtains the right boundary coordinate of the rectangle. **Returns:** Returns the right boundary coordinate. ## GetRollStartPos\(\) ``` int16_t OHOS::UILabel::GetRollStartPos () const ``` **Description:** Obtains the position where this text starts to roll. **Returns:** Returns the position where this text starts to roll. ## GetRunTime\(\) ``` uint32_t OHOS::Animator::GetRunTime () const ``` **Description:** Obtains the running time of this animator. **Returns:** Returns the running time. **See also:** [SetRunTime](Graphic.md#ga4d5ff5057df28da1bc99d08070312f24) ## GetScrollState\(\) \[1/2\] ``` uint8_t OHOS::UIScrollView::OnScrollListener::GetScrollState () const ``` **Description:** Obtains the scroll state of this view. **Returns:** Returns the scroll state, either **SCROLL\_STATE\_STOP** or **SCROLL\_STATE\_MOVE**. ## GetScrollState\(\) \[2/2\] ``` uint8_t OHOS::ListScrollListener::GetScrollState () const ``` **Description:** Obtains the scroll state of this list. **Returns:** Returns the scroll state, either **SCROLL\_STATE\_STOP** or **SCROLL\_STATE\_MOVE**. ## GetSelected\(\) ``` uint16_t OHOS::UIPicker::GetSelected () const ``` **Description:** Obtains the index of the item currently selected in the picker. **Returns:** Returns the index. ## GetSelectHour\(\) ``` const char* OHOS::UITimePicker::GetSelectHour () const ``` **Description:** Obtains the hour currently selected in the time picker. **Returns:** Returns a string representing the selected hour, for example, 10. ## GetSelectMinute\(\) ``` const char* OHOS::UITimePicker::GetSelectMinute () const ``` **Description:** Obtains the minute currently selected in the time picker. **Returns:** Returns a string representing the selected minute, for example, 12. ## GetSelectSecond\(\) ``` const char* OHOS::UITimePicker::GetSelectSecond () const ``` **Description:** Obtains the second currently selected in the time picker. **Returns:** Returns a string representing the selected second, for example, 50. ## GetSelectValue\(\) ``` const char* OHOS::UITimePicker::GetSelectValue () ``` **Description:** Obtains the time currently selected in the time picker. **Returns:** Returns a string representing the selected time. The time is in the format of "hour:minute:second", for example, 10:12:50. The second is optional and depends on the setting of [EnableSecond](Graphic.md#gaa2402a0538f08fb4d6857c356be7699c). ## GetSelectView\(\) ``` [UIView](OHOS-UIView.md)* OHOS::UIList::GetSelectView () ``` **Description:** Obtains the child view being selected at the preset position. **Returns:** Returns the child view if available; returns **NULL** if no child view is selected or no position is set. ## GetSize\(\) ``` uint32_t OHOS::Rect::GetSize () const ``` **Description:** Obtains the area of a rectangle. **Returns:** Returns the area of the rectangle. ## GetSliderKnobStyle\(\) \[1/2\] ``` [Style](OHOS-Style.md)& OHOS::Theme::GetSliderKnobStyle () ``` **Description:** Obtains the style of this slider knob. **Returns:** Returns the style of this slider knob. ## GetSliderKnobStyle\(\) \[2/2\] ``` static [Style](OHOS-Style.md)& OHOS::StyleDefault::GetSliderKnobStyle () ``` **Description:** Obtains the slider knob style. **Returns:** Returns the slider knob style. ## GetSrcType\(\) \[1/2\] ``` uint8_t OHOS::Image::GetSrcType () const ``` **Description:** Obtains the image type. **Returns:** Returns **IMG\_SRC\_VARIABLE** for image information in an array; returns **IMG\_SRC\_FILE** for an image path in binary. ## GetSrcType\(\) \[2/2\] ``` uint8_t OHOS::UIImageView::GetSrcType () const ``` **Description:** 获取图片类型 **Returns:** 图片类型 ## GetStartAngle\(\) ``` int16_t OHOS::UICircleProgress::GetStartAngle () const ``` **Description:** Obtains the start angle. **Returns:** Returns the start angle. **See also:** [SetStartAngle](Graphic.md#gae27e30bd77b83bc55ecc9f2a5643943a) ## GetStartIndex\(\) ``` uint16_t OHOS::UIList::GetStartIndex () const ``` **Description:** Obtains the start index of this list. The default value is **0**. **Returns:** Returns the start index. ## GetStartPoint\(\) ``` const [Point](OHOS-Point.md)& OHOS::DragEvent::GetStartPoint () const ``` **Description:** Obtains the start coordinates in the drag event. **Returns:** Returns the start coordinates. ## GetStartPosition\(\) ``` const [Point](OHOS-Point.md)& OHOS::UICanvas::GetStartPosition () const ``` **Description:** Obtains the coordinates of the start point of a line. **Returns:** Returns the coordinates of the start point. **See also:** [SetStartPosition](Graphic.md#gaca35fe1a1d344eab80ecb1425a74a91a) ## GetState\(\) \[1/6\] ``` uint16_t OHOS::KeyEvent::GetState () const ``` **Description:** Obtains the key state. ## GetState\(\) \[2/6\] ``` uint16_t OHOS::VirtualDeviceEvent::GetState () const ``` **Description:** Obtains the state of the virtual event. **Returns:** Returns the state. ## GetState\(\) \[3/6\] ``` bool OHOS::UIToggleButton::GetState () const ``` **Description:** Obtains the state of this toggle button. **Returns:** Returns **true** if the image for **On** is displayed; returns **false** if the image is displayed for **Off**. ## GetState\(\) \[4/6\] ``` uint8_t OHOS::Animator::GetState () const ``` **Description:** Obtains the current state of this animator. **Returns:** Returns the current animator state, which can be [START](Graphic.md#gga7b892afa4e88ab11bf96dbd67653f134a49f9e652157f467df5de3be9e8758f91), [STOP](Graphic.md#gga7b892afa4e88ab11bf96dbd67653f134a6618a5c1c0e9e4be3acba1aaee15cb8d), or [PAUSE](Graphic.md#gga7b892afa4e88ab11bf96dbd67653f134ae5db6c9a921eec21a2990d73400ff507). **See also:** [SetState](Graphic.md#gab8ec3815f5e42605a51a328c1b0857dd) ## GetState\(\) \[5/6\] ``` [UICheckBoxState](Graphic.md#ga15a3f0302aded0e4d1584ddc6002335d) OHOS::UICheckBox::GetState () const ``` **Description:** Obtains the state of this check box. **Returns:** Returns the state of this check box, as defined in [UICheckBoxState](Graphic.md#ga15a3f0302aded0e4d1584ddc6002335d). ## GetState\(\) \[6/6\] ``` uint8_t OHOS::UIImageAnimatorView::GetState () const ``` **Description:** Obtains the current state of this animator. **Returns:** Returns the current state, which can be **START**, **STOP**, or **PAUSE**. For details, see [Animator](OHOS-Animator.md). ## GetStep\(\) ``` uint16_t OHOS::UIAbstractProgress::GetStep () const ``` **Description:** Obtains the current step of this progress bar. **Returns:** Returns the current step. **See also:** [SetStep](Graphic.md#ga747a29652b441a06d09a97a297aae9bb) ## GetStrokeColor\(\) ``` [ColorType](OHOS-Color32.md) OHOS::Paint::GetStrokeColor () const ``` **Description:** Obtains the color of a line or border. **Returns:** Returns the line color if a line is drawn or the border color if a closed graph is drawn. **See also:** [SetStrokeWidth](Graphic.md#gad56b6b014e1d061ba93ba8e6c135b90a) ## GetStrokeWidth\(\) ``` uint16_t OHOS::Paint::GetStrokeWidth () const ``` **Description:** Obtains the width of a line or border. **Returns:** Returns the line width if a line is drawn or the border width if a closed graph is drawn. **See also:** [SetStrokeWidth](Graphic.md#gad56b6b014e1d061ba93ba8e6c135b90a) ## GetStyle\(\) \[1/5\] ``` [Style](OHOS-Style.md)& OHOS::TextAdapter::GetStyle () ``` **Description:** Obtains the [UILabel](OHOS-UILabel.md) adapter style. **Returns:** Returns the [UILabel](OHOS-UILabel.md) adapter style. ## GetStyle\(\) \[2/5\] ``` [PaintStyle](Graphic.md#ga548320a469b7862fa416af062cad5d7a) OHOS::Paint::GetStyle () const ``` **Description:** Obtains the paint style of a closed graph. **Returns:** Returns the paint style. For details, see [PaintStyle](Graphic.md#ga548320a469b7862fa416af062cad5d7a). **See also:** [SetStyle](Graphic.md#gab93dc15f466a656150e62d7620d34333) ## GetStyle\(\) \[3/5\] ``` int64_t OHOS::Style::GetStyle (uint8_t key) const ``` **Description:** Obtains the value of a style. **Parameters:**

Name	Description
key	Indicates the key of the style.

**Returns:** Returns the value of the style. ## GetStyle\(\) \[4/5\] ``` virtual int64_t OHOS::UIView::GetStyle (uint8_t key) const ``` **Description:** Obtains the value of a style. Reimplemented in [OHOS::UIButton](Graphic.md#ga37736a82bec6a01bc5a880e1d01ccccd). **Parameters:**

Name	Description
key	Indicates the key of the style.

**Returns:** Returns the value of the style. ## GetStyle\(\) \[5/5\] ``` int64_t OHOS::UIButton::GetStyle (uint8_t key) const ``` **Description:** Obtains the value of a style. Reimplemented from [OHOS::UIView](Graphic.md#ga4ea19bc9f4b487946c9e29e63b54a0e6). **Parameters:**

Name	Description
key	Indicates the key of the style.

**Returns:** Returns the value of the style. ## GetStyleConst\(\) ``` const [Style](OHOS-Style.md)& OHOS::UIView::GetStyleConst () const ``` **Description:** Obtains the view style. This function applies to scenarios where the style does not need to be modified, which saves memory. **Returns:** Returns the view style. ## GetStyleForState\(\) ``` int64_t OHOS::UIButton::GetStyleForState (uint8_t key, [ButtonState](Graphic.md#ga188dd55c17ee44be27fa80543f13f729) state ) const ``` **Description:** Obtains the style of a button in a specific state. **Parameters:**

Name	Description
key	Indicates the key of the style.
state	Indicates the button state, as enumerated in ButtonState.

**Returns:** Returns the style of the button in the specific state. ## GetSurface\(\) ``` [Surface](OHOS-Surface.md)* OHOS::UISurfaceView::GetSurface () const ``` **Description:** Obtains the surface, which should be used together with the camera and video modules. **Returns:** Returns the surface. ## GetSwipeACCLevel\(\) ``` uint8_t OHOS::UIAbstractScroll::GetSwipeACCLevel () const ``` **Description:** Obtains the compensation distance after a finger lifts the screen. **Returns:** Returns the compensation distance. ## GetTargetView\(\) \[1/2\] ``` virtual void OHOS::UIView::GetTargetView (const [Point](OHOS-Point.md) & point, [UIView](OHOS-UIView.md) ** last ) ``` **Description:** Obtains the top-level view based on specified coordinates. Reimplemented in [OHOS::UIViewGroup](Graphic.md#ga7ea54fc6ef3a8b7dec1bf88ab189f7c7). **Parameters:**

Name	Description
point	Indicates the coordinates to specify.
last	Indicates the double pointer to the view that contains the specified coordinates.

## GetTargetView\(\) \[2/2\] ``` virtual void OHOS::UIViewGroup::GetTargetView (const [Point](OHOS-Point.md) & point, [UIView](OHOS-UIView.md) ** last ) ``` **Description:** Obtains the target child view that is visible and can respond to touch events based on given coordinates. Reimplemented from [OHOS::UIView](Graphic.md#gaea9f334f2481e1c03a2cd8f3078d7c72). **Parameters:**

Name	Description
point	Indicates the given coordinates.
last	Indicates the double pointer to the target view. nullptr indicates that the target view is not available.

## GetText\(\) \[1/4\] ``` const char* OHOS::UILabelButton::GetText () const ``` **Description:** Obtains the text of this label button. **Returns:** Returns the text. ## GetText\(\) \[2/4\] ``` const char* OHOS::Text::GetText () const ``` **Description:** Obtains the content of this text. **Returns:** Returns the text content. ## GetText\(\) \[3/4\] ``` const char* OHOS::UIArcLabel::GetText () const ``` **Description:** Obtains the text of this arc label. **Returns:** Returns the text. ## GetText\(\) \[4/4\] ``` const char* OHOS::UILabel::GetText () const ``` **Description:** Obtains the text of this label. **Returns:** Returns the text. ## GetTextColor\(\) ``` [ColorType](OHOS-Color32.md) OHOS::UILabel::GetTextColor () const ``` **Description:** Obtains the color of this text. **Returns:** Returns the text color. ## GetTextHeight\(\) ``` uint16_t OHOS::UILabel::GetTextHeight () ``` **Description:** Obtains the height of this text. **Returns:** Returns the text height. ## GetTextRotateDegree\(\) \[1/2\] ``` uint16_t OHOS::Text::GetTextRotateDegree () const ``` **Description:** Obtains the number of text rotation degrees. **Returns:** Returns the number of text rotation degrees. ## GetTextRotateDegree\(\) \[2/2\] ``` uint16_t OHOS::UILabel::GetTextRotateDegree () const ``` **Description:** Obtains the number of text rotation degrees. **Returns:** Returns the number of text rotation degrees. ## GetTextRotation\(\) \[1/2\] ``` LabelRotateDegree OHOS::Text::GetTextRotation () const ``` **Description:** Obtains the clockwise rotation degree of this text. **Returns:** Returns the rotation degree, as defined in **LabelRotateDegree**. ## GetTextRotation\(\) \[2/2\] ``` LabelRotateDegree OHOS::UILabel::GetTextRotation () const ``` **Description:** Obtains the clockwise rotation degree of this text. **Returns:** Returns the rotation degree, as defined in **LabelRotateDegree**. ## GetTextSize\(\) ``` [Point](OHOS-Point.md) OHOS::Text::GetTextSize () const ``` **Description:** Obtains the size of this text. **Returns:** Returns the text size. ## GetTextWidth\(\) ``` uint16_t OHOS::UILabel::GetTextWidth () ``` **Description:** Obtains the width of this text. **Returns:** Returns the text width. ## GetTime\(\) ``` uint32_t OHOS::Animator::GetTime () const ``` **Description:** Obtains the total duration of this animator. **Returns:** Returns the total duration. **See also:** [SetTime](Graphic.md#ga5a2bfa5fb257b2116d08ad5ae254327c) ## GetTimeOfPause\(\) ``` uint16_t OHOS::UIImageAnimatorView::GetTimeOfPause () const ``` **Description:** Obtains the interval between two playbacks of an infinitely repeated animator. **Returns:** Returns the interval between two playbacks, in milliseconds. **See also:** [SetTimeOfPause](Graphic.md#gad4bd7aaf1100aac86a2cde8728ae8ee0) ## GetTimeOfUpdate\(\) ``` uint16_t OHOS::UIImageAnimatorView::GetTimeOfUpdate () const ``` **Description:** Obtains the speed of this animator. **Returns:** Returns the interval for updating images, in milliseconds. **See also:** [SetTimeOfUpdate](Graphic.md#ga0ee52a2ca252957199034c1234dc4f64) ## GetTimeStamp\(\) ``` const TimeType& OHOS::Event::GetTimeStamp () const ``` **Description:** Obtains the timestamp when an event occurs. **Returns:** Returns the timestamp. ## GetTop\(\) ``` int16_t OHOS::Rect::GetTop () const ``` **Description:** Obtains the top boundary coordinate of the rectangle. **Returns:** Returns the top boundary coordinate. ## GetTopPointStyle\(\) ``` const [PointStyle](OHOS-UIChartDataSerial-PointStyle.md)& OHOS::UIChartDataSerial::GetTopPointStyle () const ``` **Description:** Obtains the style of the top point of a polyline. **Returns:** Returns the style of the point. For details, see [PointStyle](OHOS-UIChartDataSerial-PointStyle.md). ## GetTouchListener\(\) ``` [OnTouchListener](OHOS-UIView-OnTouchListener.md)*& OHOS::UIView::GetTouchListener () ``` **Description:** Obtains the touch event listener for the view. **Returns:** Returns the touch event listener. ## GetTransformAlgorithm\(\) ``` TransformAlgorithm OHOS::UIImageView::GetTransformAlgorithm () const ``` **Description:** Obtains the algorithm used for image rotation and scaling. **Returns:** Returns the image transform algorithm, as defined in **TransformAlgorithm**. ## GetTransformMap\(\) ``` [TransformMap](OHOS-TransformMap.md)& OHOS::UIView::GetTransformMap () ``` **Description:** Obtains an affine transformation matrix. **Returns:** Returns the transform matrix. ## GetType\(\) ``` uint16_t OHOS::VirtualDeviceEvent::GetType () const ``` **Description:** Obtains the type of the virtual device. **Returns:** Returns the type. ## GetValidHeight\(\) ``` int16_t OHOS::UIBoxProgress::GetValidHeight () const ``` **Description:** Obtains the actual height of this progress bar. **Returns:** Returns the actual height of this progress bar. **See also:** [SetValidHeight](Graphic.md#ga6958b8273ad7a5563dfa19267cc3a13c) ## GetValidWidth\(\) ``` int16_t OHOS::UIBoxProgress::GetValidWidth () const ``` **Description:** Obtains the actual width of this progress bar. **Returns:** Returns the actual width of this progress bar. **See also:** [SetValidWidth](Graphic.md#gada3cf1819e826ee0aed4a40ef00b91a6) ## GetValleyData\(\) ``` int16_t OHOS::UIChartDataSerial::GetValleyData () const ``` **Description:** Obtains the Y value of the bottom point in a data set. The Y value is the data added by users, not the pixel coordinate. **Returns:** Returns the Y value. ## GetValleyIndex\(\) ``` uint16_t OHOS::UIChartDataSerial::GetValleyIndex () const ``` **Description:** Obtains the index of the bottom point in a data set. **Returns:** Returns the index of the bottom point. If there are multiple bottom points, the first one is returned. ## GetValue\(\) ``` int16_t OHOS::UIAbstractProgress::GetValue () const ``` **Description:** Obtains the current value of this progress bar. **Returns:** Returns the current value of this progress bar. **See also:** [SetValue](Graphic.md#ga5f65014431a6489ffa1d4949f9c4449b) ## GetVerAlign\(\) \[1/2\] ``` [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) OHOS::Text::GetVerAlign () const ``` **Description:** Obtains the vertical alignment mode. **Returns:** Returns the vertical alignment mode. ## GetVerAlign\(\) \[2/2\] ``` [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) OHOS::UILabel::GetVerAlign () const ``` **Description:** Obtains the vertical alignment mode. **Returns:** Returns the vertical alignment mode. ## GetVersion\(\) ``` std::string OHOS::GetVersion () ``` **Description:** Obtains the version number of the graphics module. **Returns:** Returns the version number of the graphics module. ## GetVertexNum\(\) ``` uint8_t OHOS::Polygon::GetVertexNum () const ``` **Description:** Obtains the number of vertices of the polygon. **Returns:** Returns the number of vertices. ## GetVerticalScrollState\(\) ``` bool OHOS::UIScrollView::GetVerticalScrollState () const ``` **Description:** Checks whether a vertical scroll is enabled. **Returns:** Returns **true** if a vertical scroll is enabled, returns **false** otherwise. ## GetView\(\) \[1/2\] ``` [UIView](OHOS-UIView.md)* OHOS::TextAdapter::GetView ([UIView](OHOS-UIView.md) * inView, int16_t index ) ``` **Description:** Obtains a **[UILabel](OHOS-UILabel.md)** instance to convert adapter data into another **[UILabel](OHOS-UILabel.md)** instance. Implements [OHOS::AbstractAdapter](Graphic.md#gab155b2f4a6d8fd97755dcd1e6d3d8361). **Parameters:**

Name

Description

inView

Indicates the pointer to the reusable instance. If this parameter is not NULL, a reusable UILabel instance is available. In this case, this function does not need to create a new UILabel instance, just resusing the instance specified by inView to update the inView data. If this parameter is NULL, there is no resuable UIView instance. In this case, this function needs to create a new UILabel instance.

index

Indicates the adapter data index.

**Returns:** Returns the address of the **[UILabel](OHOS-UILabel.md)** instance constructed by the adapter. ## GetView\(\) \[2/2\] ``` virtual [UIView](OHOS-UIView.md)* OHOS::AbstractAdapter::GetView ([UIView](OHOS-UIView.md) * inView, int16_t index ) ``` **Description:** Obtains a **[UIView](OHOS-UIView.md)** instance to convert adapter data into another **[UIView](OHOS-UIView.md)** instance. Implemented in [OHOS::TextAdapter](Graphic.md#ga733211ca13eccff628bb2712c27b885e). **Parameters:**

Name

Description

inView

Indicates the pointer to the reusable instance. If this parameter is not NULL, a reusable UIView instance is available. In this case, this function does not need to create a new UIView instance, just reusing the instance specified by inView to update the inView data. If this parameter is NULL, there is no reusable UIView instance. In this case, this function needs to create a new UIView instance.

index

Indicates the adapter data index.

**Returns:** [UIView](OHOS-UIView.md) Returns the pointer to the **[UIView](OHOS-UIView.md)** instance constructed by the adapter. ## GetViewByIndex\(\) ``` [UIView](OHOS-UIView.md)* OHOS::UISwipeView::GetViewByIndex (uint16_t index) const ``` **Description:** Obtains a view based on its index. **Parameters:**

Name	Description
Indicates	the index of a view.

**Returns:** Returns the view. ## GetViewId\(\) ``` const char* OHOS::UIView::GetViewId () const ``` **Description:** Obtains the view ID. **Returns:** Returns the pointer to the view ID. ## GetViewIndex\(\) ``` int16_t OHOS::UIView::GetViewIndex () const ``` **Description:** Obtains the view index. **Returns:** Returns the view index. ## GetViewType\(\) \[1/31\] ``` virtual UIViewType OHOS::UIView::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented in [OHOS::UIChart](Graphic.md#gaea65298b6e4a71a2de65c13e1b14ed7b), [OHOS::UICanvas](Graphic.md#ga467faebb78b4c4a753eaa44b772f0905), [OHOS::UIAnalogClock](Graphic.md#ga2f5123df8cbcc4f55c5192acbe30ba0d), [OHOS::UIList](Graphic.md#ga6e11e5de67f87ed6cf6c44f60b7d4096), [OHOS::UIScrollView](Graphic.md#ga1feefd393c568a12ec4e877e207d598c), [OHOS::RootView](Graphic.md#ga7b96c15cdbe0edd5045e479b3b2fe1eb), [OHOS::UICheckBox](Graphic.md#ga6820cef1fb685db5796670ca56b6aace), [OHOS::UILabel](Graphic.md#gaebb514dc68a761c444af0e0e89dfcb6f), [OHOS::UIAbstractClock](Graphic.md#ga8f7edc9e099688b4fd2b3ed3171eac58), [OHOS::UISwipeView](Graphic.md#ga71ae0dd892d8d9b8d277ba2b5572182d), [OHOS::UIDialog](Graphic.md#gac0b18fe28ee4ad44814d3897d3cd5c05), [OHOS::UIBoxProgress](Graphic.md#gaa2d380d48776748583f51297715af0b5), [OHOS::UIImageAnimatorView](Graphic.md#ga831167c9f5000af808638eac56d6ec19), [OHOS::UIButton](Graphic.md#gad19f55fb0de64f3f39485292d0629dc7), [OHOS::UIRadioButton](Graphic.md#ga2efe6a87345903726c721fc7a9ed4365), [OHOS::UIArcLabel](Graphic.md#ga2ebe9b09e69cd04b00db686dbec8c32c), [OHOS::UILabelButton](Graphic.md#ga7064f161dbf0e539bd089db62339cad8), [OHOS::UIToggleButton](Graphic.md#gaeb2bf2bfa7b5f229a151bec4fd046b40), [OHOS::UIRepeatButton](Graphic.md#gac391336aedd68659b7f76bee59eba521), [OHOS::UISlider](Graphic.md#gac2070526833718284148689678c542a9), [OHOS::UIViewGroup](Graphic.md#gad5756764839a844ee9bee0c186798029), [OHOS::UIAbstractScroll](Graphic.md#gaeb9e84901b38ef75fa650fc5a27ffc65), [OHOS::UIAxis](Graphic.md#ga2f46b702f1543c5076a8957a94a780d3), [OHOS::UICircleProgress](Graphic.md#gab1d8fc06d4a73db344efd271d68a62e6), [OHOS::UIDigitalClock](Graphic.md#ga567a8195e8520b74b682de697cfe1d90), [OHOS::UITextureMapper](Graphic.md#ga5cb1566d1fdd815004a37349dc458203), [OHOS::UIAbstractProgress](Graphic.md#ga79885b87d1935947f6980ae56f139083), [OHOS::UIImageView](Graphic.md#ga5dc99855271c582e960e0952cca8227c), [OHOS::UIPicker](Graphic.md#ga926337be55785de0b32ad57d7ee85c5c), and [OHOS::UITimePicker](Graphic.md#gaf4770cfad2f6368b22e9ea581b12aefa). **Returns:** Returns the view type. ## GetViewType\(\) \[2/31\] ``` UIViewType OHOS::UITimePicker::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns the view type. For details, see **UIViewType**. ## GetViewType\(\) \[3/31\] ``` UIViewType OHOS::UIImageView::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). Reimplemented in [OHOS::UITextureMapper](Graphic.md#ga5cb1566d1fdd815004a37349dc458203). **Returns:** Returns **UI\_IMAGE\_VIEW**, as defined in **UIViewType**. ## GetViewType\(\) \[4/31\] ``` UIViewType OHOS::UIPicker::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns the view type. For details, see **UIViewType**. ## GetViewType\(\) \[5/31\] ``` UIViewType OHOS::UIAbstractProgress::GetViewType () const ``` **Description:** Obtains the component type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). Reimplemented in [OHOS::UIBoxProgress](Graphic.md#gaa2d380d48776748583f51297715af0b5), [OHOS::UISlider](Graphic.md#gac2070526833718284148689678c542a9), and [OHOS::UICircleProgress](Graphic.md#gab1d8fc06d4a73db344efd271d68a62e6). **Returns:** Returns the component type, as defined in **UIViewType**. ## GetViewType\(\) \[6/31\] ``` UIViewType OHOS::UIDigitalClock::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIAbstractClock](Graphic.md#ga8f7edc9e099688b4fd2b3ed3171eac58). **Returns:** Returns **UI\_DIGITAL\_CLOCK**, as defined in **UIViewType**. ## GetViewType\(\) \[7/31\] ``` UIViewType OHOS::UIAxis::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns the view type. For details, see **UIViewType**. ## GetViewType\(\) \[8/31\] ``` UIViewType OHOS::UIAbstractScroll::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). Reimplemented in [OHOS::UIList](Graphic.md#ga6e11e5de67f87ed6cf6c44f60b7d4096), [OHOS::UIScrollView](Graphic.md#ga1feefd393c568a12ec4e877e207d598c), and [OHOS::UISwipeView](Graphic.md#ga71ae0dd892d8d9b8d277ba2b5572182d). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[9/31\] ``` UIViewType OHOS::UITextureMapper::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIImageView](Graphic.md#ga5dc99855271c582e960e0952cca8227c). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[10/31\] ``` UIViewType OHOS::UICircleProgress::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIAbstractProgress](Graphic.md#ga79885b87d1935947f6980ae56f139083). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[11/31\] ``` UIViewType OHOS::UIViewGroup::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns **UI\_VIEW\_GROUP**, as defined in **UIViewType**. ## GetViewType\(\) \[12/31\] ``` UIViewType OHOS::UIRepeatButton::GetViewType () const ``` **Description:** Obtains the component type. Reimplemented from [OHOS::UIButton](Graphic.md#gad19f55fb0de64f3f39485292d0629dc7). **Returns:** Returns the component type, as defined in **UIViewType**. ## GetViewType\(\) \[13/31\] ``` UIViewType OHOS::UISlider::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIBoxProgress](Graphic.md#gaa2d380d48776748583f51297715af0b5). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[14/31\] ``` UIViewType OHOS::UIToggleButton::GetViewType () const ``` **Description:** Obtains the component type. Reimplemented from [OHOS::UICheckBox](Graphic.md#ga6820cef1fb685db5796670ca56b6aace). **Returns:** Returns the component type, as defined in **UIViewType**. ## GetViewType\(\) \[15/31\] ``` UIViewType OHOS::UILabelButton::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIButton](Graphic.md#gad19f55fb0de64f3f39485292d0629dc7). **Returns:** Returns **UI\_LABEL\_BUTTON**, as defined in **UIViewType**. ## GetViewType\(\) \[16/31\] ``` UIViewType OHOS::UIArcLabel::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns **UI\_ARC\_LABEL**, as defined in \{link UIViewType\}. ## GetViewType\(\) \[17/31\] ``` UIViewType OHOS::UIRadioButton::GetViewType () const ``` **Description:** Obtains the component type. Reimplemented from [OHOS::UICheckBox](Graphic.md#ga6820cef1fb685db5796670ca56b6aace). **Returns:** Returns the component type, as defined in **UIViewType**. ## GetViewType\(\) \[18/31\] ``` UIViewType OHOS::UIButton::GetViewType () const ``` **Description:** Obtains the component type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). Reimplemented in [OHOS::UILabelButton](Graphic.md#ga7064f161dbf0e539bd089db62339cad8), and [OHOS::UIRepeatButton](Graphic.md#gac391336aedd68659b7f76bee59eba521). **Returns:** Returns the component type, as defined in **UIViewType**. ## GetViewType\(\) \[19/31\] ``` UIViewType OHOS::UIImageAnimatorView::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[20/31\] ``` UIViewType OHOS::UIBoxProgress::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIAbstractProgress](Graphic.md#ga79885b87d1935947f6980ae56f139083). Reimplemented in [OHOS::UISlider](Graphic.md#gac2070526833718284148689678c542a9). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[21/31\] ``` UIViewType OHOS::UIDialog::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[22/31\] ``` UIViewType OHOS::UISwipeView::GetViewType () const ``` **Description:** Obtains the component type. Reimplemented from [OHOS::UIAbstractScroll](Graphic.md#gaeb9e84901b38ef75fa650fc5a27ffc65). **Returns:** Returns the component type, as defined in **UIViewType**. ## GetViewType\(\) \[23/31\] ``` UIViewType OHOS::UIAbstractClock::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). Reimplemented in [OHOS::UIAnalogClock](Graphic.md#ga2f5123df8cbcc4f55c5192acbe30ba0d), and [OHOS::UIDigitalClock](Graphic.md#ga567a8195e8520b74b682de697cfe1d90). **Returns:** Returns **UI\_ABSTRACT\_CLOCK**, as defined in **UIViewType**. ## GetViewType\(\) \[24/31\] ``` UIViewType OHOS::UILabel::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns **UI\_LABEL**, as defined in **UIViewType**. ## GetViewType\(\) \[25/31\] ``` UIViewType OHOS::UICheckBox::GetViewType () const ``` **Description:** Obtains the component type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). Reimplemented in [OHOS::UIRadioButton](Graphic.md#ga2efe6a87345903726c721fc7a9ed4365), and [OHOS::UIToggleButton](Graphic.md#gaeb2bf2bfa7b5f229a151bec4fd046b40). **Returns:** Returns the component type, as defined in **UIViewType**. ## GetViewType\(\) \[26/31\] ``` UIViewType OHOS::RootView::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns **UI\_ROOT\_VIEW**, as defined in **UIViewType**. ## GetViewType\(\) \[27/31\] ``` UIViewType OHOS::UIScrollView::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIAbstractScroll](Graphic.md#gaeb9e84901b38ef75fa650fc5a27ffc65). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[28/31\] ``` UIViewType OHOS::UIList::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIAbstractScroll](Graphic.md#gaeb9e84901b38ef75fa650fc5a27ffc65). **Returns:** Returns the view type, as defined in **UIViewType**. ## GetViewType\(\) \[29/31\] ``` UIViewType OHOS::UIAnalogClock::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIAbstractClock](Graphic.md#ga8f7edc9e099688b4fd2b3ed3171eac58). **Returns:** Returns **UI\_ANALOG\_CLOCK**, as defined in **UIViewType**. ## GetViewType\(\) \[30/31\] ``` UIViewType OHOS::UICanvas::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns the view type. For details, see **UIViewType**. ## GetViewType\(\) \[31/31\] ``` UIViewType OHOS::UIChart::GetViewType () const ``` **Description:** Obtains the view type. Reimplemented from [OHOS::UIView](Graphic.md#ga6d23780da1faa1071197b716bca365e0). **Returns:** Returns the view type. For details, see **UIViewType**. ## GetVisibleRect\(\) ``` [Rect](OHOS-Rect.md) OHOS::UIView::GetVisibleRect () const ``` **Description:** Obtains the visible absolute rectangle area of the view. **Returns:** Returns the visible absolute rectangle area. ## GetWidth\(\) \[1/7\] ``` uint16_t OHOS::Screen::GetWidth () ``` **Description:** Obtains the width of this screen. **Returns:** Returns the screen width. ## GetWidth\(\) \[2/7\] ``` virtual int16_t OHOS::UIView::GetWidth () ``` **Description:** Obtains the width for the view. Reimplemented in [OHOS::UIButton](Graphic.md#ga8cb74b23f740091e59ad350a8dea436b), [OHOS::UILabel](Graphic.md#ga95bc777cda044ada4401d9c5900226c6), [OHOS::UIArcLabel](Graphic.md#gae2348ef2f06893325ca3366856657199), and [OHOS::UIImageView](Graphic.md#ga20ea7dd2d8ddb16cf9750ccdcc2a2803). **Returns:** Returns the view width. ## GetWidth\(\) \[3/7\] ``` int16_t OHOS::Rect::GetWidth () const ``` **Description:** Obtains the rectangle width. **Returns:** Returns the rectangle width. ## GetWidth\(\) \[4/7\] ``` int16_t OHOS::UIImageView::GetWidth () ``` **Description:** Obtains the width of this image view. Reimplemented from [OHOS::UIView](Graphic.md#ga90cf8cffb98d71c30d6fc1d118442dbd). **Returns:** Returns the width of this image view. ## GetWidth\(\) \[5/7\] ``` int16_t OHOS::UIArcLabel::GetWidth () ``` **Description:** Obtains the width of this arc text. Reimplemented from [OHOS::UIView](Graphic.md#ga90cf8cffb98d71c30d6fc1d118442dbd). **Returns:** Returns the width of this arc text. ## GetWidth\(\) \[6/7\] ``` int16_t OHOS::UILabel::GetWidth () ``` **Description:** Obtains the width of this label. Reimplemented from [OHOS::UIView](Graphic.md#ga90cf8cffb98d71c30d6fc1d118442dbd). **Returns:** Returns the label width. ## GetWidth\(\) \[7/7\] ``` int16_t OHOS::UIButton::GetWidth () ``` **Description:** Obtains the width of this image. Reimplemented from [OHOS::UIView](Graphic.md#ga90cf8cffb98d71c30d6fc1d118442dbd). **Returns:** Returns the image width. ## GetWorkMode\(\) ``` virtual [WorkMode](Graphic.md#ga19db90932bc71e6bbced6ccf2935ac98) OHOS::UIAbstractClock::GetWorkMode () const ``` **Description:** Obtains the working mode of this clock. **Returns:** Returns the working mode, as defined in [WorkMode](Graphic.md#ga19db90932bc71e6bbced6ccf2935ac98). ## GetX\(\) \[1/2\] ``` int16_t OHOS::Rect::GetX () const ``` **Description:** Obtains the left boundary coordinate of the rectangle. **Returns:** Returns the left boundary coordinate. ## GetX\(\) \[2/2\] ``` int16_t OHOS::UIView::GetX () const ``` **Description:** Obtains the x-coordinate for the view. **Returns:** Returns the x-coordinate. ## GetXAxis\(\) ``` [UIXAxis](OHOS-UIXAxis.md)& OHOS::UIChart::GetXAxis () ``` **Description:** Obtains the x-axis instance. **Returns:** Returns the x-axis instance. ## GetY\(\) \[1/2\] ``` int16_t OHOS::Rect::GetY () const ``` **Description:** Obtains the top boundary coordinate of the rectangle. **Returns:** Returns the top boundary coordinate. ## GetY\(\) \[2/2\] ``` int16_t OHOS::UIView::GetY () const ``` **Description:** Obtains the y-coordinate for the view. **Returns:** Returns the y-coordinate. ## GetYAxis\(\) ``` [UIYAxis](OHOS-UIYAxis.md)& OHOS::UIChart::GetYAxis () ``` **Description:** Obtains the y-axis instance. **Returns:** Returns the y-axis instance. ## Gray\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Gray () ``` **Description:** Obtains the color data of gray. **Returns:** Returns the color data. ## Green\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Green () ``` **Description:** Obtains the color data of green. **Returns:** Returns the color data. ## GridLayout\(\) ``` OHOS::GridLayout::GridLayout () ``` **Description:** A default constructor used to create a **[GridLayout](OHOS-GridLayout.md)** instance. ## Hand\(\) ``` OHOS::UIAnalogClock::Hand::Hand () ``` **Description:** A default constructor used to create a **[Hand](OHOS-UIAnalogClock-Hand.md)** instance. ## Head\(\) ``` [ListNode](OHOS-ListNode-T.md)* [OHOS::List](OHOS-List-T.md)< T >::Head () const ``` **Description:** Obtains the head node address of a linked list. **Returns:** Returns the head node address. ## HidePoint\(\) ``` void OHOS::UIChartDataSerial::HidePoint (uint16_t index, uint16_t count ) ``` **Description:** Hides some points in the data set. This function applies only to line charts. After the points are hidden, the line connected by the points is not displayed. The top and bottom points may appear in the hidden region. If this method is enabled, you are not advised to enable the display of the top and bottom points. **Parameters:**

Name	Description
index	Indicates the point from which the hide starts.
count	Indicates the number of points to hide.

## Image\(\) ``` OHOS::Image::Image () ``` **Description:** A constructor used to create an **[Image](OHOS-Image.md)** instance. You can use this constructor when a component requires a map. ## ImageCacheFree\(\) ``` void OHOS::ImageCacheFree ([ImageInfo](OHOS-ImageInfo.md) & info) ``` **Description:** Releases the image cache memory. **Parameters:**

Name	Description
info	Indicates the image information. For details, see ImageInfo.

## ImageCacheMalloc\(\) ``` void* OHOS::ImageCacheMalloc ([ImageInfo](OHOS-ImageInfo.md) & info) ``` **Description:** Applies for the image cache memory. You can customize the memory area when loading image resources. **Parameters:**

Name	Description
info	Indicates the image information. For details, see ImageInfo.

## IncOneSecond\(\) ``` void OHOS::UIAbstractClock::IncOneSecond () ``` **Description:** Increases the time by one second. ## Insert\(\) \[1/3\] ``` void [OHOS::List](OHOS-List-T.md)< T >::Insert ([ListNode](OHOS-ListNode-T.md)< T > * node, T data ) ``` **Description:** Inserts data before a specified node, which follows the inserted data node. **Parameters:**

Name	Description
node	Indicates the pointer to the node holding the inserted data.
data	Indicates the data to insert.

## Insert\(\) \[2/3\] ``` virtual void OHOS::UIViewGroup::Insert ([UIView](OHOS-UIView.md) * prevView, [UIView](OHOS-UIView.md) * insertView ) ``` **Description:** Inserts a new child view behind the current one. Reimplemented in [OHOS::UISwipeView](Graphic.md#ga154efaf952ba1db65e53efdd29f0027b). **Parameters:**

Name	Description
prevView	Indicates the pointer to the current child view, previous to the new child view to insert.
view	Indicates the pointer to the new child view to insert.

## Insert\(\) \[3/3\] ``` void OHOS::UISwipeView::Insert ([UIView](OHOS-UIView.md) * prevView, [UIView](OHOS-UIView.md) * insertView ) ``` **Description:** Inserts a view. Reimplemented from [OHOS::UIViewGroup](Graphic.md#ga84195a993bfe50d8302435ababb63966). **Parameters:**

Name	Description
prevView	Indicates the previous view.
insertView	Indicates the view to insert.

## Intersect\(\) \[1/2\] ``` bool OHOS::Intersect (const [Line](OHOS-Line.md) & a, const [Line](OHOS-Line.md) & b, [Vector2](OHOS-Vector2-T.md)< int16_t > & out ) ``` **Description:** Checks whether line segment a and line segment b intersect, and returns the intersection point \(if available\). **Parameters:**

Name	Description
a	Indicates line segment a.
b	Indicates line segment b.
out	Indicates the intersection point.

**Returns:** Returns **true** if the two line segments intersect; returns **false** otherwise. ## Intersect\(\) \[2/2\] ``` bool OHOS::Rect::Intersect (const [Rect](OHOS-Rect.md) & rect1, const [Rect](OHOS-Rect.md) & rect2 ) ``` **Description:** Checks whether two rectangles intersect. **Parameters:**

Name	Description
rect1	Indicates the first rectangle to check.
rect2	Indicates the second rectangle to check.

**Returns:** Returns **true** if the two rectangles intersect; returns **false** otherwise. ## Invalidate\(\) ``` void OHOS::UIView::Invalidate () ``` **Description:** Refreshes the invalidated area of the view. ## InvalidateRect\(\) ``` void OHOS::UIView::InvalidateRect (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Refreshes a view in a specified invalidated area. **Parameters:**

Name	Description
invalidatedArea	Indicates the area to refresh.

## Inverse\(\) ``` [Matrix3](OHOS-Matrix3-T.md)< T > [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::Inverse ``` **Description:** Obtains the inverse matrix. **Returns:** Returns the inverse matrix. ## IsContains\(\) \[1/3\] ``` bool OHOS::Rect::IsContains (const [Point](OHOS-Point.md) & point) const ``` **Description:** Checks whether the rectangle contains a coordinate point. **Parameters:**

Name	Description
point	Indicates the coordinate point.

**Returns:** Returns **true** if the input coordinate point is contained; returns **false** otherwise. ## IsContains\(\) \[2/3\] ``` bool OHOS::Rect::IsContains (const [Rect](OHOS-Rect.md) & other) const ``` **Description:** Checks whether the rectangle contains another rectangle. **Parameters:**

Name	Description
other	Indicates the rectangle to be used for check.

**Returns:** Returns **true** if the input rectangle is contained; returns **false** otherwise. ## IsContains\(\) \[3/3\] ``` bool OHOS::Rect::IsContains (const [Vector2](OHOS-Vector2-T.md)< int16_t > & point) const ``` **Description:** Checks whether the rectangle contains a coordinate point. **Parameters:**

Name	Description
point	Indicates the coordinate point.

**Returns:** Returns **true** if the input coordinate point is contained; returns **false** otherwise. ## IsDraggable\(\) ``` bool OHOS::UIView::IsDraggable () const ``` **Description:** Checks whether the view is draggable. **Returns:** Returns **true** if the view is draggable; returns **false** otherwise. ## IsDragParentInstead\(\) ``` bool OHOS::UIView::IsDragParentInstead () const ``` **Description:** Obtains whether the view transfers a drag event to the parent view for processing. **Returns:** Returns **true** if the view transfers the event to the parent view for processing; returns **false** otherwise. ## IsEmpty\(\) ``` bool [OHOS::List](OHOS-List-T.md)< T >::IsEmpty () const ``` **Description:** Checks whether a linked list is empty. **Returns:** Returns **true** if the linked list is empty; returns **false** otherwise. ## IsExpandHeight\(\) ``` bool OHOS::Text::IsExpandHeight () const ``` **Description:** Checks whether the component height adapts to this text. **Returns:** Returns **true** if the component height adapts to this text; returns **false** otherwise. ## IsExpandWidth\(\) ``` bool OHOS::Text::IsExpandWidth () const ``` **Description:** Checks whether the component width adapts to this text. **Returns:** Returns **true** if the component width adapts to this text; returns **false** otherwise. ## IsExtends\(\) ``` bool OHOS::Rect::IsExtends (const [Rect](OHOS-Rect.md) & other) const ``` **Description:** Checks whether the rectangle is adjacent to another rectangle horizontally or vertically. **Parameters:**

Name	Description
other	Indicates the rectangle to be used for check.

**Returns:** Returns **true** if the rectangle is adjacent to the input rectangle; returns **false** otherwise. ## IsGradient\(\) ``` bool OHOS::UIChartDataSerial::IsGradient () const ``` **Description:** Checks whether a polyline has a fill color. **Returns:** Returns **true** if there is a fill color; returns **false** otherwise. ## IsIntersect\(\) \[1/2\] ``` bool OHOS::IsIntersect (const [Line](OHOS-Line.md) & a, const [Line](OHOS-Line.md) & b ) ``` **Description:** Chekcs whether line segment a and line segment b intersect. **Parameters:**

Name	Description
a	Indicates line segment a.
b	Indicates line segment b.

**Returns:** Returns **true** if the two line segments intersect; returns **false** otherwise. ## IsIntersect\(\) \[2/2\] ``` bool OHOS::Rect::IsIntersect (const [Rect](OHOS-Rect.md) & other) const ``` **Description:** Checks whether the rectangle intersects with another rectangle. **Parameters:**

Name	Description
other	Indicates the rectangle to be used for check.

**Returns:** Returns **true** if the two rectangles intersect; returns **false** otherwise. ## IsInvalid\(\) ``` bool OHOS::TransformMap::IsInvalid () const ``` **Description:** Checks whether the **[TransformMap](OHOS-TransformMap.md)** instance is invalid. When the vertices are all 0, the **[TransformMap](OHOS-TransformMap.md)** is invalid. **Returns:** Returns **true** if **[TransformMap](OHOS-TransformMap.md)** is invalid; returns **false** otherwise. ## IsRepeat\(\) \[1/2\] ``` bool OHOS::UIImageAnimatorView::IsRepeat () const ``` **Description:** Checks whether this animator is played for infinite times. **Returns:** Returns **true** if this animator is played for infinite times, returns **false** if the animator is played a specified number of times. **See also:** [SetRepeat](Graphic.md#ga0368d596c01e1a6093d7476fce548a38) ## IsRepeat\(\) \[2/2\] ``` bool OHOS::Animator::IsRepeat () const ``` **Description:** Checks whether this animator is repeated. **Returns:** Returns **true** if the animator is repeated; returns **false** if the animator is played once. ## IsReverse\(\) ``` bool OHOS::UIImageAnimatorView::IsReverse () const ``` **Description:** Obtains the playback sequence of this animator. **Returns:** Returns **true** if a reverse playback is performed; returns **false** if a forward playback is performed. **See also:** [SetReverse](Graphic.md#ga38a53936c930f4d75ccd9d9c6a5b9afa) ## IsSizeFixed\(\) ``` bool OHOS::UIImageAnimatorView::IsSizeFixed () const ``` **Description:** Checks whether the image size is fixed to the view size. **Returns:** Returns **true** if the image size is fixed to the view size; returns **false** if the image size is set independently. **See also:** [SetSizeFixed](Graphic.md#ga0e41547fd9d55ff85d6b800e59957370) ## IsSmooth\(\) ``` bool OHOS::UIChartDataSerial::IsSmooth () const ``` **Description:** Checks whether smoothing is performed on a polyline. **Returns:** Returns **true** if smooth processing is performed on the polyline; returns **false** otherwise. ## IsTouchable\(\) ``` bool OHOS::UIView::IsTouchable () const ``` **Description:** Checks whether the view is touchable. **Returns:** Returns **true** if the view is touchable; returns **false** otherwise. ## IsViewGroup\(\) ``` bool OHOS::UIView::IsViewGroup () const ``` **Description:** Checks whether the view is a container view. **Returns:** Returns **true** if the view is a container view; returns **false** otherwise. ## IsVisible\(\) ``` bool OHOS::UIView::IsVisible () const ``` **Description:** Checks whether the view is visible. **Returns:** Returns **true** if the view is visible; returns **false** otherwise. ## Join\(\) ``` void OHOS::Rect::Join (const [Rect](OHOS-Rect.md) & rect1, const [Rect](OHOS-Rect.md) & rect2 ) ``` **Description:** Obtains the minimum rectangle that contains another two rectangles. **Parameters:**

Name	Description
rect1	Indicates the first rectangle to contain.
rect2	Indicates the second rectangle to contain.

## KeyEvent\(\) ``` OHOS::KeyEvent::KeyEvent (uint16_t keyId, uint16_t state ) ``` **Description:** A constructor used to create a **[KeyEvent](OHOS-KeyEvent.md)** instance. **Parameters:**

Name	Description
keyId	Indicates the key ID.
state	Indicates the key state.

## Layout\(\) ``` OHOS::Layout::Layout () ``` **Description:** A default constructor used to create a **[Layout](OHOS-Layout.md)** instance. ## LayoutBottomOfParent\(\) ``` void OHOS::UIView::LayoutBottomOfParent (int16_t offset = [/topic/body/section/screen/code {""}) 0 (code]) ``` **Description:** Lays out the view on the bottom of the parent view. **Parameters:**

Name	Description
offset	Indicates the offset added to the y-axis after the view is placed. A positive number indicates the offset to the top, and a negative number indicates the offset to the bottom.

## LayoutBottomToSibling\(\) ``` void OHOS::UIView::LayoutBottomToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Lays out the view on the below of a sibling view. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the y-axis after the view is placed. A positive number indicates the offset to the bottom, and a negative number indicates the offset to the top.

## LayoutCenterOfParent\(\) ``` void OHOS::UIView::LayoutCenterOfParent (int16_t xOffSet = [/topic/body/section/screen/code {""}) 0 (code], int16_t yOffset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Lays out the view in the center of the parent view. **Parameters:**

Name	Description
xOffset	Indicates the offset added to the x-axis after the view is placed. A positive number indicates the offset to the right, and a negative number indicates the offset to the left.
yOffset	Indicates the offset added to the y-axis after the view is placed. A positive number indicates the offset to the bottom, and a negative number indicates the offset to the top.

## LayoutChildren\(\) \[1/3\] ``` virtual void OHOS::GridLayout::LayoutChildren (bool needInvalidate = [/topic/body/section/screen/code {""}) false (code]) ``` **Description:** Lays out all child views according to the preset arrangement mode. Reimplemented from [OHOS::UIView](Graphic.md#gaca871fa2f8219e7ea9388e212d1f1e69). **Parameters:**

Name	Description
needInvalidate	Specifies whether to refresh the invalidated area after the layout is complete. Value true means to refresh the invalidated area after the layout is complete, and false means the opposite.

## LayoutChildren\(\) \[2/3\] ``` virtual void OHOS::FlexLayout::LayoutChildren (bool needInvalidate = [/topic/body/section/screen/code {""}) false (code]) ``` **Description:** Lays out all child views according to the preset arrangement mode. Reimplemented from [OHOS::UIView](Graphic.md#gaca871fa2f8219e7ea9388e212d1f1e69). **Parameters:**

Name	Description
needInvalidate	Specifies whether to refresh the invalidated area after the layout is complete. Value true means to refresh the invalidated area after the layout is complete, and false means the opposite.

## LayoutChildren\(\) \[3/3\] ``` virtual void OHOS::UIView::LayoutChildren (bool neeInvalidate = [/topic/body/section/screen/code {""}) false (code]) ``` **Description:** Lays out all child views according to the preset arrangement mode. Reimplemented in [OHOS::FlexLayout](Graphic.md#ga976abe5b006bef9018dd0d8ee2380526), and [OHOS::GridLayout](Graphic.md#ga449c17a9fa3898aac9ac68a2c48363a3). **Parameters:**

Name	Description
needInvalidate	Specifies whether to refresh the invalidated area after the layout is complete. Value true means to refresh the invalidated area after the layout is complete, and false means the opposite.

## LayoutLeftOfParent\(\) ``` void OHOS::UIView::LayoutLeftOfParent (int16_t offset = [/topic/body/section/screen/code {""}) 0 (code]) ``` **Description:** Lays out the view on the left of the parent view. **Parameters:**

Name	Description
offset	Indicates the offset added to the x-axis after the view is placed. A positive number indicates the offset to the right, and a negative number indicates the offset to the left.

## LayoutLeftToSibling\(\) ``` void OHOS::UIView::LayoutLeftToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Lays out the view on the left of a sibling view. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the x-axis after the view is placed. A positive number indicates the offset to the left, and a negative number indicates the offset to the right.

## LayoutRightOfParent\(\) ``` void OHOS::UIView::LayoutRightOfParent (int16_t offset = [/topic/body/section/screen/code {""}) 0 (code]) ``` **Description:** Lays out the view on the right of the parent view. **Parameters:**

Name	Description
offset	Indicates the offset added to the x-axis after the view is placed. A positive number indicates the offset to the left, and a negative number indicates the offset to the right.

## LayoutRightToSibling\(\) ``` void OHOS::UIView::LayoutRightToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Lays out the view on the right of a sibling view. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the x-axis after the view is placed. A positive number indicates the offset to the right, and a negative number indicates the offset to the left.

## LayoutTopOfParent\(\) ``` void OHOS::UIView::LayoutTopOfParent (int16_t offset = [/topic/body/section/screen/code {""}) 0 (code]) ``` **Description:** Lays out the view on the top of the parent view. **Parameters:**

Name	Description
offset	Indicates the offset added to the y-axis after the view is placed. A positive number indicates the offset to the bottom, and a negative number indicates the offset to the top.

## LayoutTopToSibling\(\) ``` void OHOS::UIView::LayoutTopToSibling (const char * id, int16_t offset = [/topic/body/section/screen/code {""}) 0 (code] ) ``` **Description:** Lays out the view on the above of a sibling view. **Parameters:**

Name	Description
id	Indicates the pointer to the ID of the sibling view.
offset	Indicates the offset added to the y-axis after the view is placed. A positive number indicates the offset to the top, and a negative number indicates the offset to the bottom.

## Lime\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Lime () ``` **Description:** Obtains the color data of lime. **Returns:** Returns the color data. ## Line\(\) \[1/3\] ``` OHOS::Line::Line () ``` **Description:** The default constructor used to create a **[Line](OHOS-Line.md)** instance. ## Line\(\) \[2/3\] ``` OHOS::Line::Line (const [Vector2](OHOS-Vector2-T.md)< int16_t > & a, const [Vector2](OHOS-Vector2-T.md)< int16_t > & b ) ``` **Description:** A constructor used to create a **[Line](OHOS-Line.md)** instance. **Parameters:**

Name	Description
a	Indicates the start point of the line.
b	Indicates the end point of the line.

## Line\(\) \[3/3\] ``` OHOS::Line::Line (int16_t x1, int16_t y1, int16_t x2, int16_t y2 ) ``` **Description:** A constructor used to create a **[Line](OHOS-Line.md)** instance. **Parameters:**

Name	Description
x1	Indicates the X coordinate of the line's start point.
y1	Indicates the Y coordinate of the line's start point.
x2	Indicates the X coordinate of the line's end point.
y2	Indicates the Y coordinate of the line's end point.

## LinearEaseNone\(\) ``` static int16_t OHOS::EasingEquation::LinearEaseNone (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Displays no linear easing effects. **t** is the equation for a linear easing. The animation progresses at a constant velocity towards the end. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** LinearEaseIn | LinearEaseOut | LinearEaseInOut ## List\(\) ``` [OHOS::List](OHOS-List-T.md)< T >::[List](OHOS-List-T.md) () ``` **Description:** A default constructor used to create a **[List](OHOS-List-T.md)** instance. The initial size is **0**. ## ListScrollListener\(\) ``` OHOS::ListScrollListener::ListScrollListener () ``` **Description:** A constructor used to create a **[ListScrollListener](OHOS-ListScrollListener.md)** instance with the default state **SCROLL\_STATE\_STOP**. ## LongPressEvent\(\) ``` OHOS::LongPressEvent::LongPressEvent (const [Point](OHOS-Point.md) & pos, const TimeType & timeStamp ) ``` **Description:** A constructor used to create a **[LongPressEvent](OHOS-LongPressEvent.md)** instance. **Parameters:**

Name	Description
pos	Indicates the position where the long-press event occurs.
timeStamp	Indicates the time stamp when the long-press event occurs.

## Magenta\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Magenta () ``` **Description:** Obtains the color data of magenta. **Returns:** Returns the color data. ## MakeAABB\(\) ``` [Rect](OHOS-Rect.md) OHOS::Polygon::MakeAABB () const ``` **Description:** Obtains the minimum rectangle that can contain the polygon. All vertices of the polygon are inside this rectangle. **Returns:** Returns the minimum rectangle that contains the polygon. ## Maroon\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Maroon () ``` **Description:** Obtains the color data of maroon. **Returns:** Returns the color data. ## Matrix3\(\) \[1/2\] ``` [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::[Matrix3](OHOS-Matrix3-T.md) ``` **Description:** Defines a **[Matrix3](OHOS-Matrix3-T.md)** instance and initializes the 3 x 3 matrix data. ## Matrix3\(\) \[2/2\] ``` [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::[Matrix3](OHOS-Matrix3-T.md) (T m00, T m01, T m02, T m10, T m11, T m12, T m20, T m21, T m22 ) ``` **Description:** Defines a **[Matrix3](OHOS-Matrix3-T.md)** instance and initializes the 3 x 3 matrix data. **Parameters:**

Name	Description
m00	Indicates the element in row 1 and column 1 of the matrix.
m01	Indicates the element in row 1 and column 2 of the matrix.
m02	Indicates the element in row 1 and column 3 of the matrix.
m10	Indicates the element in row 2 and column 1 of the matrix.
m11	Indicates the element in row 2 and column 2 of the matrix.
m12	Indicates the element in row 2 and column 3 of the matrix.
m20	Indicates the element in row 3 and column 1 of the matrix.
m21	Indicates the element in row 3 and column 2 of the matrix.
m22	Indicates the element in row 3 and column 3 of the matrix.

## ModifyPoint\(\) ``` bool OHOS::UIChartDataSerial::ModifyPoint (uint16_t index, const [Point](OHOS-Point.md) & point ) ``` **Description:** Modifies the value of a data point in the data set. **Parameters:**

Name	Description
index	Indicates the index of the data point to modify.
point	Indicates the new value of the data point.

**Returns:** Returns **true** if the operation is successful; returns **false** otherwise. ## MoveChildByOffset\(\) \[1/4\] ``` void OHOS::UIAbstractScroll::MoveChildByOffset (int16_t offsetX, int16_t offsetY ) ``` **Description:** Moves the position of all child views. Reimplemented from [OHOS::UIViewGroup](Graphic.md#ga776c6c1640cb88b537af227fa5eb0725). Reimplemented in [OHOS::UISwipeView](Graphic.md#ga4db88368bb4908ee05aa1137982b6d0e), and [OHOS::UIList](Graphic.md#gafe121e0cc150122486049dcaf83f3c26). **Parameters:**

Name	Description
offsetX	Indicates the offset distance by which a child view is moved on the x-axis.
offsetY	Indicates the offset distance by which a child view is moved on the y-axis.

## MoveChildByOffset\(\) \[2/4\] ``` virtual void OHOS::UIViewGroup::MoveChildByOffset (int16_t x, int16_t y ) ``` **Description:** Moves all child views. Reimplemented in [OHOS::UISwipeView](Graphic.md#ga4db88368bb4908ee05aa1137982b6d0e), [OHOS::UIList](Graphic.md#gafe121e0cc150122486049dcaf83f3c26), and [OHOS::UIAbstractScroll](Graphic.md#ga5013215d3075616ae081849ef52bb57a). **Parameters:**

Name	Description
x	Indicates the offset distance by which this view group is moved on the x-axis.
y	Indicates the offset distance by which this view group is moved on the y-axis.

## MoveChildByOffset\(\) \[3/4\] ``` virtual void OHOS::UIList::MoveChildByOffset (int16_t x, int16_t y ) ``` **Description:** Moves the position of all child views. Reimplemented from [OHOS::UIAbstractScroll](Graphic.md#ga5013215d3075616ae081849ef52bb57a). **Parameters:**

Name	Description
offsetX	Indicates the offset distance by which a child view is moved on the x-axis.
offsetY	Indicates the offset distance by which a child view is moved on the y-axis.

## MoveChildByOffset\(\) \[4/4\] ``` void OHOS::UISwipeView::MoveChildByOffset (int16_t offsetX, int16_t offsetY ) ``` **Description:** Moves the position of all child views. Reimplemented from [OHOS::UIAbstractScroll](Graphic.md#ga5013215d3075616ae081849ef52bb57a). **Parameters:**

Name	Description
offsetX	Indicates the offset distance by which a child view is moved on the x-axis.
offsetY	Indicates the offset distance by which a child view is moved on the y-axis.

## Navy\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Navy () ``` **Description:** Obtains the color data of navy. **Returns:** Returns the color data. ## Next\(\) ``` [ListNode](OHOS-ListNode-T.md)* [OHOS::List](OHOS-List-T.md)< T >::Next (const [ListNode](OHOS-ListNode-T.md)< T > * node) const ``` **Description:** Obtains the address of the node following the specified **node**. **Parameters:**

Name	Description
node	Indicates the pointer to the data node in the linked list.

**Returns:** Returns the address of the node following **node**. ## Olive\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Olive () ``` **Description:** Obtains the color data of olive. **Returns:** Returns the color data. ## OnAnimatorStop\(\) \[1/2\] ``` virtual void OHOS::UIImageAnimatorView::AnimatorStopListener::OnAnimatorStop ([UIView](OHOS-UIView.md) & view) ``` **Description:** Called when this animator stops. You need to inherit from the ** [AnimatorStopListener](OHOS-UIImageAnimatorView-AnimatorStopListener.md)** class and implement this function. **Parameters:**

Name	Description
view	Indicates the instance of this view.

## OnAnimatorStop\(\) \[2/2\] ``` virtual void OHOS::UITextureMapper::AnimatorStopListener::OnAnimatorStop ([UIView](OHOS-UIView.md) & view) ``` **Description:** Called when this animator stops. This is a pure virtual function, which needs your inheritance and implementation. **Parameters:**

Name	Description
view	Indicates the instance of this view.

## OnCancel\(\) ``` virtual bool OHOS::UIView::OnTouchListener::OnCancel ([UIView](OHOS-UIView.md) & view, const [CancelEvent](OHOS-CancelEvent.md) & event ) ``` **Description:** Called when a click event on a view is canceled. **Parameters:**

Name	Description
view	Indicates the view on which a click event is canceled.
event	Indicates the cancel event.

Name	Description
event	Indicates the cancel event.

Name	Description
[in]	event	The cancel event.

## OnChange\(\) \[1/2\] ``` virtual void OHOS::UISlider::UISliderEventListener::OnChange (int16_t value) ``` **Description:** Called when the slider is dragged or clicked. This is a virtual function, which needs your implementation. **Parameters:**

Name	Description
value	Indicates the current value of the slider.

## OnChange\(\) \[2/2\] ``` virtual bool OHOS::UICheckBox::OnChangeListener::OnChange ([UICheckBoxState](Graphic.md#ga15a3f0302aded0e4d1584ddc6002335d) state) ``` **Description:** Called when the state of this check box is switched. This is a virtual function, which needs your implementation. **Parameters:**

Name	Description
state	Indicates the current state of this check box. For details, see UICheckBoxState.

## OnChildChanged\(\) ``` virtual void OHOS::UIViewGroup::OnChildChanged () ``` **Description:** Performs operations needed after a child view is added or removed. ## OnClick\(\) ``` virtual bool OHOS::UIView::OnClickListener::OnClick ([UIView](OHOS-UIView.md) & view, const [ClickEvent](OHOS-ClickEvent.md) & event ) ``` **Description:** Called when a view is clicked. **Parameters:**

Name	Description
view	Indicates the view clicked.
event	Indicates the click event.

Name	Description
event	Indicates the click event.

Name	Description
[in]	event	click event.

## OnClickEvent\(\) \[3/5\] ``` void OHOS::UIRadioButton::OnClickEvent (const [ClickEvent](OHOS-ClickEvent.md) & event) ``` **Description:** Executes the click event action OnClickEvent will reverse the selected state of checkbox. Example: If the check box is selected, the checkbox status is changed to Unselected after the click action is taken. Reimplemented from [OHOS::UICheckBox](Graphic.md#ga31d4f10f4c32b0fb284645450875ae0c). **Parameters:**

Name	Description
[in]	event	The event that passed when OnClickEvent is invoked.

## OnClickEvent\(\) \[4/5\] ``` void OHOS::UICheckBox::OnClickEvent (const [ClickEvent](OHOS-ClickEvent.md) & event) ``` **Description:** Executes the click event action OnClickEvent will reverse the selected state of checkbox. Example: If the check box is selected, the checkbox status is changed to Unselected after the click action is taken. Reimplemented from [OHOS::UIView](Graphic.md#gad08697a29aae4c58267f494b66b9a547). Reimplemented in [OHOS::UIRadioButton](Graphic.md#ga7b6849c94b9d8b90cbbe890790fedf1e). **Parameters:**

Name	Description
[in]	event	The event that passed when OnClickEvent is invoked.

## OnClickEvent\(\) \[5/5\] ``` void OHOS::UISlider::OnClickEvent (const [ClickEvent](OHOS-ClickEvent.md) & event) ``` **Description:** Called when the view is clicked. Reimplemented from [OHOS::UIView](Graphic.md#gad08697a29aae4c58267f494b66b9a547). **Parameters:**

Name	Description
event	Indicates the click event.

Name	Description
view	Indicates the view dragged.
event	Indicates the drag event.

Name	Description
view	Indicates the view dragged.
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

Name	Description
event	The drag event

## OnDragStart\(\) ``` virtual bool OHOS::UIView::OnDragListener::OnDragStart ([UIView](OHOS-UIView.md) & view, const [DragEvent](OHOS-DragEvent.md) & event ) ``` **Description:** Called when a view starts to drag. **Parameters:**

Name	Description
view	Indicates the view dragged.
event	Indicates the drag event.

Name	Description
event	Indicates the drag event.

**Returns:** Returns **true** if the event is consumed; returns **false** otherwise. \(If an event is consumed, it is not transferred to the parent view. If an event is not consumed, it is transferred to the parent view after local processing is complete.\) ## OnDraw\(\) \[1/15\] ``` virtual void OHOS::UIView::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called when a view is drawn. Reimplemented in [OHOS::UIChart](Graphic.md#ga5c101948cb2cfb8394af0bcb56f65efb), [OHOS::UICanvas](Graphic.md#gac6122967d3e1f0d312eebed2f93a1369), [OHOS::UIArcLabel](Graphic.md#ga9f3b69ad5511a4bd8f3aede212f3f374), [OHOS::UIAnalogClock](Graphic.md#ga6c943119bd89a863ec5f05722a1fd146), [OHOS::UIBoxProgress](Graphic.md#ga3321d9b9b156423bdc0abcb8e99efb0d), [OHOS::UISlider](Graphic.md#gad6bd59e05d77868e595d087fd2de5d00), [OHOS::UISurfaceView](Graphic.md#ga30a99c506c6d8d8fc0e0bd81d52e2d52), [OHOS::UICheckBox](Graphic.md#ga8e75f8411fb25e564c82573a12773189), [OHOS::UILabel](Graphic.md#ga911199741bf792b5de00789b4c8d780d), [OHOS::UIAxis](Graphic.md#ga5360803f425055de52af5f7fa1081cfe), [OHOS::UIImageView](Graphic.md#ga565cecb8ac66f2009dc4783da9bdc699), [OHOS::UIButton](Graphic.md#gae69843b87be9fcdab3e4ac776547f3bc), [OHOS::UICircleProgress](Graphic.md#ga611f2f03c22499c428d1de3392ee4861), and [OHOS::UILabelButton](Graphic.md#ga159c536c3f826165c26fdabdc87f498a). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[2/15\] ``` void OHOS::UILabelButton::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Draws a label button. Reimplemented from [OHOS::UIButton](Graphic.md#gae69843b87be9fcdab3e4ac776547f3bc). ## OnDraw\(\) \[3/15\] ``` void OHOS::UICircleProgress::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called when a view is drawn. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[4/15\] ``` void OHOS::UIButton::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Executes the draw action. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). Reimplemented in [OHOS::UILabelButton](Graphic.md#ga159c536c3f826165c26fdabdc87f498a). **Parameters:**

Name	Description
[in]	invalidatedArea	The rectangle to draw, with coordinates relative to this drawable..

## OnDraw\(\) \[5/15\] ``` void OHOS::UIImageView::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Draws this image view. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[6/15\] ``` void OHOS::UIAxis::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called when a view is drawn. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[7/15\] ``` void OHOS::UILabel::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Draws this label. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[8/15\] ``` void OHOS::UICheckBox::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Executes the draw action Ondraw invokes the rendering function provided by the underlying layer to draw pictures based on the selected status of the checkbox. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
[in]	invalidatedArea	The invalidated area.

## OnDraw\(\) \[9/15\] ``` void OHOS::UISurfaceView::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called when this view is drawn. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[10/15\] ``` void OHOS::UISlider::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called when a view is drawn. Reimplemented from [OHOS::UIBoxProgress](Graphic.md#ga3321d9b9b156423bdc0abcb8e99efb0d). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[11/15\] ``` void OHOS::UIBoxProgress::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called when a view is drawn. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). Reimplemented in [OHOS::UISlider](Graphic.md#gad6bd59e05d77868e595d087fd2de5d00). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[12/15\] ``` void OHOS::UIAnalogClock::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Draws an analog clock. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[13/15\] ``` virtual void OHOS::UIArcLabel::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Draws an arc text. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[14/15\] ``` virtual void OHOS::UICanvas::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called when a view is drawn. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnDraw\(\) \[15/15\] ``` void OHOS::UIChart::OnDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called when a view is drawn. Reimplemented from [OHOS::UIView](Graphic.md#ga9a5f43bdc03cde30323b570bfb7ae425). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnFPSChanged\(\) ``` virtual void OHOS::SysInfo::OnFPSChangedListener::OnFPSChanged (float newFPS) ``` **Description:** Called when the FPS data changes. **Parameters:**

Name	Description
newFPS	Indicates the FPS data.

## OnFPSChangedListener\(\) ``` OHOS::SysInfo::OnFPSChangedListener::OnFPSChangedListener () ``` **Description:** A constructor used to create an **[OnFPSChangedListener](OHOS-SysInfo-OnFPSChangedListener.md)** instance with the default sampling type **FPS\_CT\_FIXED\_TIME**. ## OnItemSelected\(\) ``` virtual void OHOS::ListScrollListener::OnItemSelected (int16_t index, [UIView](OHOS-UIView.md) * view ) ``` **Description:** Called when a new child view is selected at the preset position as this list scrolls. For details about how to set the position, see **SetSelectPosition**. **Parameters:**

Name	Description
index	Indicates the index of the child view being selected at the preset position. This parameter should be set to NULL_SELECT_INDEX if no child view is selected or no position is preset.
view	Indicates the child view being selected at the preset position. This parameter should be set to NULL if no child view is selected or no position is preset.

## OnKeyAct\(\) ``` virtual bool OHOS::RootView::OnKeyActListener::OnKeyAct ([UIView](OHOS-UIView.md) & view, const [KeyEvent](OHOS-KeyEvent.md) & event ) ``` **Description:** Responds to a physical key event. **Parameters:**

Name	Description
view	Indicates the view displayed upon a physical key event.
event	Indicates the physical key event to respond to.

**Returns:** Returns **true** if the view is normally displayed upon a physical key event; returns ** false** otherwise. ## OnKeyEvent\(\) ``` virtual void OHOS::RootView::OnKeyEvent (const [KeyEvent](OHOS-KeyEvent.md) & event) ``` **Description:** Executes a physical key event. **Parameters:**

Name	Description
event	Indicates the physical key event to execute.

## OnLongPress\(\) ``` virtual bool OHOS::UIView::OnLongPressListener::OnLongPress ([UIView](OHOS-UIView.md) & view, const [LongPressEvent](OHOS-LongPressEvent.md) & event ) ``` **Description:** Called when a view is long pressed. **Parameters:**

Name	Description
view	Indicates the view long pressed.
event	Indicates the long-press event.

Name	Description
event	Indicates the long-press event.

Name	Description
[in]	event	long press event.

## OnPickerStoped\(\) ``` virtual void OHOS::UIPicker::SelectedListener::OnPickerStoped ([UIPicker](OHOS-UIPicker.md) & picker) ``` **Description:** Called when an item is selected after sliding stops. This function is implemented by applications. **Parameters:**

Name	Description
picker	Indicates the picker instance.

## OnPostDraw\(\) \[1/3\] ``` virtual void OHOS::UIView::OnPostDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called after a view is drawn. Reimplemented in [OHOS::UIAnalogClock](Graphic.md#ga1366a4ca45babb67f3103279a2bbc0bf), and [OHOS::UIScrollView](Graphic.md#ga8a7764e5a85e40b497a67fdf54a1b4c8). **Parameters:**

Name	Description
invalidatedArea	Indicates the area in which the view is drawn.

## OnPostDraw\(\) \[2/3\] ``` void OHOS::UIScrollView::OnPostDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called after a view is drawn. Reimplemented from [OHOS::UIView](Graphic.md#gab70473cd0d8fe7c9d4bb817caeee9153). **Parameters:**

Name	Description
invalidatedArea	Indicates the area in which the view is drawn.

## OnPostDraw\(\) \[3/3\] ``` virtual void OHOS::UIAnalogClock::OnPostDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Performs the operations needed after the drawing. Reimplemented from [OHOS::UIView](Graphic.md#gab70473cd0d8fe7c9d4bb817caeee9153). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

## OnPreDraw\(\) \[1/13\] ``` virtual bool OHOS::UIView::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process. Reimplemented in [OHOS::UIChart](Graphic.md#ga9a8287a522f00bb3dbe60af8f242054a), [OHOS::UISlider](Graphic.md#gaf0483e605613ee1789332e67f00f5e2d), [OHOS::UISurfaceView](Graphic.md#gaeb15d1fb86ad2e2aabddc9c36676894a), [OHOS::UICheckBox](Graphic.md#ga53cc6c8f18b90c3abd96a791c8921010), [OHOS::UILabel](Graphic.md#gaac293fb7f318e1855fba21b740147061), [OHOS::UIAxis](Graphic.md#gad1bf4d83270c0a4ba04f3cffbc67bb97), [OHOS::UIDialog](Graphic.md#ga6b3cf14760fc07e38f51d366a8e5fdb9), [OHOS::UIImageView](Graphic.md#ga5d79816831f61406c1c8bd300da9973e), [OHOS::UIButton](Graphic.md#gaf64d9ec1744ab9c7385dd64d30a786e4), [OHOS::UIRadioButton](Graphic.md#gade9069f6e553c6c43f7684e835b584e5), [OHOS::UICircleProgress](Graphic.md#ga98bc4ea99629e4d5c7ca5ca4b43e8e96), and [OHOS::UIPicker](Graphic.md#ga3e2a703a10017c789366029b297969ab). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if the parent view needs to be redrawn; returns **false** otherwise. ## OnPreDraw\(\) \[2/13\] ``` bool OHOS::UIPicker::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if the parent view needs to be redrawn; returns **false** otherwise. ## OnPreDraw\(\) \[3/13\] ``` bool OHOS::UICircleProgress::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if the parent view needs to be redrawn; returns **false** otherwise. ## OnPreDraw\(\) \[4/13\] ``` bool OHOS::UIRadioButton::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Do something before draw, this function will be invoked mainly to check if this view need to cover invalidate area so render manager can decide which layer to draw firstly. Reimplemented from [OHOS::UICheckBox](Graphic.md#ga53cc6c8f18b90c3abd96a791c8921010). **Parameters:**

Name	Description
[in]	invalidate	area.

**Returns:** True if need cover. ## OnPreDraw\(\) \[5/13\] ``` bool OHOS::UIButton::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Do something before draw, this function will be invoked mainly to check if this view need to cover invalidate area so render manager can decide which layer to draw firstly. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
[in]	invalidate	area.

**Returns:** True if need cover. ## OnPreDraw\(\) \[6/13\] ``` bool OHOS::UIImageView::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Checks whether this image view needs to be covered to optimize the drawing process. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if this image view needs to be covered; returns ** false** otherwise. ## OnPreDraw\(\) \[7/13\] ``` bool OHOS::UIDialog::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Checks whether this label needs to be covered before drawing it. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if this label needs to be covered; returns ** false** otherwise. ## OnPreDraw\(\) \[8/13\] ``` bool OHOS::UIAxis::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if the parent view needs to be redrawn; returns **false** otherwise. ## OnPreDraw\(\) \[9/13\] ``` bool OHOS::UILabel::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Checks whether this label needs to be covered before drawing it. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if this label needs to be covered; returns ** false** otherwise. ## OnPreDraw\(\) \[10/13\] ``` bool OHOS::UICheckBox::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Do something before draw, this function will be invoked mainly to check if this view need to cover invalidate area so render manager can decide which layer to draw firstly. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). Reimplemented in [OHOS::UIRadioButton](Graphic.md#gade9069f6e553c6c43f7684e835b584e5). **Parameters:**

Name	Description
[in]	invalidate	area.

**Returns:** True if need cover. ## OnPreDraw\(\) \[11/13\] ``` bool OHOS::UISurfaceView::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called before this view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so that the drawing process is optimized. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if the parent view needs to be redrawn; returns **false** otherwise. ## OnPreDraw\(\) \[12/13\] ``` bool OHOS::UISlider::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if the parent view needs to be redrawn; returns **false** otherwise. ## OnPreDraw\(\) \[13/13\] ``` bool OHOS::UIChart::OnPreDraw (const [Rect](OHOS-Rect.md) & invalidatedArea) ``` **Description:** Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process. Reimplemented from [OHOS::UIView](Graphic.md#gac295fe4851eed72f48e9a63771416d71). **Parameters:**

Name	Description
invalidatedArea	Indicates the area to draw.

**Returns:** Returns **true** if the parent view needs to be redrawn; returns **false** otherwise. ## OnPress\(\) ``` virtual bool OHOS::UIView::OnTouchListener::OnPress ([UIView](OHOS-UIView.md) & view, const [PressEvent](OHOS-PressEvent.md) & event ) ``` **Description:** Called when a view is pressed. **Parameters:**

Name	Description
view	Indicates the view pressed.
event	Indicates the press event.

Name	Description
event	Indicates the press event.

Name	Description
[in]	event	The press event, contain press position.

## OnPressEvent\(\) \[3/4\] ``` void OHOS::UIScrollView::OnPressEvent (const [PressEvent](OHOS-PressEvent.md) & event) ``` **Description:** Called when the view is pressed. Reimplemented from [OHOS::UIView](Graphic.md#gafa544ff2d27785a9410a80689f1ad3b1). **Parameters:**

Name	Description
event	Indicates the press event.

Name	Description
event	Indicates the press event.

Name	Description
value	Indicates the current value of the slider.

## OnRelease\(\) \[2/2\] ``` virtual bool OHOS::UIView::OnTouchListener::OnRelease ([UIView](OHOS-UIView.md) & view, const [ReleaseEvent](OHOS-ReleaseEvent.md) & event ) ``` **Description:** Called when a view is released. **Parameters:**

Name	Description
view	Indicates the view released.
event	Indicates the release event.

Name	Description
event	Indicates the release event.

Name	Description
[in]	event	release event.

## OnReleaseEvent\(\) \[3/3\] ``` void OHOS::UIButton::OnReleaseEvent (const [ReleaseEvent](OHOS-ReleaseEvent.md) & event) ``` **Description:** Executes the press release event action. Reimplemented from [OHOS::UIView](Graphic.md#ga7bd1a74563b059b03fbf66f9add53ee3). Reimplemented in [OHOS::UIRepeatButton](Graphic.md#gadd5891c03d95d07d127558b5bc9a7bd7). **Parameters:**

Name	Description
[in]	event	The press release event.

## OnScrollEnd\(\) \[1/2\] ``` virtual void OHOS::UIScrollView::OnScrollListener::OnScrollEnd () ``` **Description:** Called when a scroll ends. ## OnScrollEnd\(\) \[2/2\] ``` virtual void OHOS::ListScrollListener::OnScrollEnd (int16_t index, [UIView](OHOS-UIView.md) * view ) ``` **Description:** Called when a scroll ends. **Parameters:**

Name	Description
index	Indicates the index of the child view being selected at the preset position. This parameter should be set to NULL_SELECT_INDEX if no child view is selected or no position is preset.
view	Indicates the child view being selected at the preset position. This parameter should be set to NULL if no child view is selected or no position is preset.

## OnScrollListener\(\) ``` OHOS::UIScrollView::OnScrollListener::OnScrollListener () ``` **Description:** A constructor used to create an **[OnScrollListener](OHOS-UIScrollView-OnScrollListener.md)** instance with the default scroll state **SCROLL\_STATE\_STOP**. ## OnScrollStart\(\) \[1/2\] ``` virtual void OHOS::UIScrollView::OnScrollListener::OnScrollStart () ``` **Description:** Called when a scroll starts. ## OnScrollStart\(\) \[2/2\] ``` virtual void OHOS::ListScrollListener::OnScrollStart (int16_t index, [UIView](OHOS-UIView.md) * view ) ``` **Description:** Called when a scroll starts. **Parameters:**

Name	Description
index	Indicates the index of the child view being selected at the preset position. This parameter should be set to NULL_SELECT_INDEX if no child view is selected or no position is preset.
view	Indicates the child view being selected at the preset position. This parameter should be set to NULL if no child view is selected or no position is preset.

## OnStop\(\) ``` virtual void OHOS::AnimatorCallback::OnStop ([UIView](OHOS-UIView.md) & view) ``` **Description:** Called when an animator stops. This is a pure virtual function, which needs your inheritance and implementation. **Parameters:**

Name	Description
view	Indicates the UIView instance, which is added from the constructor of the Animator class.

## OnTimePickerStoped\(\) ``` virtual void OHOS::UITimePicker::SelectedListener::OnTimePickerStoped ([UITimePicker](OHOS-UITimePicker.md) & picker) ``` **Description:** Called when an item is selected after sliding stops. This function is implemented by applications. **Parameters:**

Name	Description
picker	Indicates the time picker instance.

## OnVirtualDeviceEvent\(\) \[1/2\] ``` virtual void OHOS::RootView::OnVirtualDeviceEvent (const [VirtualDeviceEvent](OHOS-VirtualDeviceEvent.md) & event) ``` **Description:** Executes an input event triggered by a virtual device. **Parameters:**

Name	Description
event	Indicates the input event to respond to.

## OnVirtualDeviceEvent\(\) \[2/2\] ``` virtual bool OHOS::RootView::OnVirtualDeviceEventListener::OnVirtualDeviceEvent ([UIView](OHOS-UIView.md) & view, [VirtualDeviceEvent](OHOS-VirtualDeviceEvent.md) event ) ``` **Description:** Responds to an input event triggered by a virtual device. **Parameters:**

Name	Description
view	Indicates the view displayed upon an input event triggered by a virtual device.
event	Indicates the input event to respond to.

**Returns:** Returns **true** if this view is normally displayed upon an input event triggered by a virtual device; returns ** false** otherwise. ## operator delete\(\) ``` void OHOS::HeapBase::operator delete (void * p) ``` **Description:** Overrides the **delete** function. **Parameters:**

Name	Description
p	Indicates the pointer to the memory to be released.

## operator new\(\) ``` void* OHOS::HeapBase::operator new (size_t size) ``` **Description:** Overrides the **new** function. **Parameters:**

Name	Description
size	Indicates the size of the memory to be allocated.

## operator\[\]\(\) \[1/2\] ``` [Vector2](OHOS-Vector2-T.md)& OHOS::Line::operator[] (uint8_t index) ``` **Description:** Obtains the start or end point of the line based on the value of **index**. **Parameters:**

Name	Description
index	Indicates the start or end point to obtain. The value 0 indicates that the start point is to be obtained, and 1 indicates that the end point is to be obtained.

**Returns:** Returns the start or end point of the line. ## operator\[\]\(\) \[2/2\] ``` const [Vector2](OHOS-Vector2-T.md) OHOS::Line::operator[] (uint8_t index) const ``` **Description:** Obtains the start or end point of the line based on the value of **index**. **Parameters:**

Name	Description
index	Indicates the start or end point to obtain. The value 0 indicates that the start point is to be obtained, and 1 indicates that the end point is to be obtained.

**Returns:** Returns the start or end point of the line. ## Orange\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Orange () ``` **Description:** Obtains the color data of orange. **Returns:** Returns the color data. ## Paint\(\) ``` OHOS::Paint::Paint () ``` **Description:** A constructor used to create a **[Paint](OHOS-Paint.md)** instance. ## Pause\(\) \[1/2\] ``` void OHOS::Animator::Pause () ``` **Description:** Pauses this animator. **See also:** [Resume](Graphic.md#ga645bbd33356bd708636a94c3d95c282d) ## Pause\(\) \[2/2\] ``` void OHOS::UIImageAnimatorView::Pause () ``` **Description:** Pauses this animator at the current image. **See also:** [Resume](Graphic.md#ga051f03136d8c00295162f53acbe6da97) ## Polygon\(\) \[1/3\] ``` OHOS::Polygon::Polygon () ``` **Description:** The default constructor used to create a **[Polygon](OHOS-Polygon.md)** instance. ## Polygon\(\) \[2/3\] ``` OHOS::Polygon::Polygon (const [Rect](OHOS-Rect.md) & rect) ``` **Description:** A constructor used to construct a **[Polygon](OHOS-Polygon.md)** instance based on a rectangle. **Parameters:**

Name	Description
rect	Indicates the rectangle used to construct the polygon.

## Polygon\(\) \[3/3\] ``` OHOS::Polygon::Polygon (const [Vector2](OHOS-Vector2-T.md)< int16_t > * vertexes, const uint8_t vertexNum ) ``` **Description:** A constructor used to create a **[Polygon](OHOS-Polygon.md)** instance based on the vertex coordinates and the number of coordinates. The number of vertex coordinates cannot exceed the value of [MAX\_VERTEX\_NUM](Graphic.md#gafff78acb69e2b147b6f33d68e570ef54). **Parameters:**

Name	Description
vertexes	Indicates the pointer to the vertex coordinates.
vertexNum	Indicates the number of vertices.

## PopBack\(\) ``` void [OHOS::List](OHOS-List-T.md)< T >::PopBack () ``` **Description:** Pops up a data record at the end of a linked list. ## PopFront\(\) ``` void [OHOS::List](OHOS-List-T.md)< T >::PopFront () ``` **Description:** Pops up a data record at the start of a linked list. ## PressEvent\(\) ``` OHOS::PressEvent::PressEvent (const [Point](OHOS-Point.md) & pos) ``` **Description:** A constructor used to create a **[PressEvent](OHOS-PressEvent.md)** instance. **Parameters:**

Name	Description
pos	Indicates the position where the press event occurs.

## Purple\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Purple () ``` **Description:** Obtains the color data of purple. **Returns:** Returns the color data. ## PushBack\(\) ``` void [OHOS::List](OHOS-List-T.md)< T >::PushBack (T data) ``` **Description:** Inserts data at the end of a linked list. **Parameters:**

Name	Description
data	Indicates the data to insert.

## PushFront\(\) ``` void [OHOS::List](OHOS-List-T.md)< T >::PushFront (T data) ``` **Description:** Inserts data at the start of a linked list. **Parameters:**

Name	Description
data	Indicates the data to insert.

## QuadEaseIn\(\) ``` static int16_t OHOS::EasingEquation::QuadEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in shaping like a quadratic curve. **t^2** is the equation for a quadratic easing. The animation starts slowly from zero velocity and accelerates fast towards the end. The acceleration change is similar to a quadratic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [QuadEaseOut](Graphic.md#ga0c9cd2781e17f7077b4c9d5847eb90c8) | [QuadEaseInOut](Graphic.md#ga8f62ddc3f1b2b33904845601108d6f64) ## QuadEaseInOut\(\) ``` static int16_t OHOS::EasingEquation::QuadEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in and then out shaping like a quadratic curve. **t^2** is the equation for a quadratic easing. The animation accelerates slowly until halfway and decelerates slowly towards the end. The acceleration change is similar to a quadratic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [QuadEaseIn](Graphic.md#ga72a9b93086c8466767942863a7d5cb78) | [QuadEaseOut](Graphic.md#ga0c9cd2781e17f7077b4c9d5847eb90c8) ## QuadEaseOut\(\) ``` static int16_t OHOS::EasingEquation::QuadEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases out shaping like a quadratic curve. **t^2** is the equation for a quadratic easing. The animation starts fast and decelerates slowly towards the end. The acceleration change is similar to a quadratic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [QuadEaseIn](Graphic.md#ga72a9b93086c8466767942863a7d5cb78) | [QuadEaseInOut](Graphic.md#ga8f62ddc3f1b2b33904845601108d6f64) ## QuintEaseIn\(\) ``` static int16_t OHOS::EasingEquation::QuintEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in shaping like a quintic curve. **t^5** is the equation for a quintic easing. The animation starts slowly from zero velocity and accelerates fast towards the end. The acceleration change is similar to a quintic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [QuintEaseOut](Graphic.md#gaa61e26b2bff3f69edced36d0c0d17a45) | [QuintEaseInOut](Graphic.md#ga8bea02f98d26a97072f32369370a421b) ## QuintEaseInOut\(\) ``` static int16_t OHOS::EasingEquation::QuintEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in and then out shaping like a quintic curve. **t^5** is the equation for a quintic easing. The animation accelerates slowly until halfway and decelerates slowly towards the end. The acceleration change is similar to a quintic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [QuintEaseIn](Graphic.md#ga9ddf5221cdde5f6a37096300847a50ac) | [QuintEaseOut](Graphic.md#gaa61e26b2bff3f69edced36d0c0d17a45) ## QuintEaseOut\(\) ``` static int16_t OHOS::EasingEquation::QuintEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases out shaping like a quintic curve. **t^5** is the equation for a quintic easing. The animation starts fast and decelerates slowly towards the end. The acceleration change is similar to a quintic curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [QuintEaseIn](Graphic.md#ga9ddf5221cdde5f6a37096300847a50ac) | [QuintEaseInOut](Graphic.md#ga8bea02f98d26a97072f32369370a421b) ## Rect\(\) \[1/4\] ``` OHOS::Rect::Rect () ``` **Description:** A constructor used to create a **[Rect](OHOS-Rect.md)** instance. ## Rect\(\) \[2/4\] ``` OHOS::Rect::Rect (const [Rect](OHOS-Rect.md) && other) ``` **Description:** A constructor used to create a **[Rect](OHOS-Rect.md)** instance by copying another rectangle. **Parameters:**

Name	Description
other	Indicates the rectangle to copy.

## Rect\(\) \[3/4\] ``` OHOS::Rect::Rect (const [Rect](OHOS-Rect.md) & other) ``` **Description:** A constructor used to create a **[Rect](OHOS-Rect.md)** instance by copying another rectangle. **Parameters:**

Name	Description
other	Indicates the rectangle to copy.

## Rect\(\) \[4/4\] ``` OHOS::Rect::Rect (int16_t left, int16_t top, int16_t right, int16_t bottom ) ``` **Description:** A constructor used to create a **[Rect](OHOS-Rect.md)** instance based on the coordinates of the four boundaries. **Parameters:**

Name	Description
left	Indicates the coordinate of the left boundary.
top	Indicates the coordinate of the top boundary.
right	Indicates the coordinate of the right boundary.
bottom	Indicates the coordinate of the bottom boundary.

## Red\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Red () ``` **Description:** Obtains the color data of red. **Returns:** Returns the color data. ## RefreshChart\(\) \[1/3\] ``` void OHOS::UIChartPillar::RefreshChart () ``` **Description:** Refreshes a bar chart and redraws the dirty region. Only the parts that need to be redrawn are refreshed, for example, new data points. This function provides better performance than [Invalidate](Graphic.md#ga2a9a38b8450fbb196277238a51fbbf99). Implements [OHOS::UIChart](Graphic.md#gaaab35011c82308c770cf5c15641fe21c). ## RefreshChart\(\) \[2/3\] ``` void OHOS::UIChartPolyline::RefreshChart () ``` **Description:** Refreshes a line chart and redraws the dirty region. Only the parts that need to be redrawn are refreshed, for example, new data points. This function provides better performance than [Invalidate](Graphic.md#ga2a9a38b8450fbb196277238a51fbbf99). Implements [OHOS::UIChart](Graphic.md#gaaab35011c82308c770cf5c15641fe21c). ## RefreshChart\(\) \[3/3\] ``` virtual void OHOS::UIChart::RefreshChart () ``` **Description:** Refreshes a chart and redraws the dirty region. Only the parts that need to be redrawn are refreshed, for example, new data points. This function provides better performance than [Invalidate](Graphic.md#ga2a9a38b8450fbb196277238a51fbbf99). Implemented in [OHOS::UIChartPolyline](Graphic.md#ga53594e65076b8588bcc48d4c69fbe8fd), and [OHOS::UIChartPillar](Graphic.md#ga0c6028474577ce99caa6d3eafaef1573). ## RefreshList\(\) ``` void OHOS::UIList::RefreshList () ``` **Description:** Refreshes this list. The number of child views in the current view is fixed and the positions of those reserved child views as this list scrolls remain unchanged. ## RegisterFPSChangedListener\(\) ``` static void OHOS::SysInfo::RegisterFPSChangedListener ([OnFPSChangedListener](OHOS-SysInfo-OnFPSChangedListener.md) * onFPSChangedListener) ``` **Description:** Registers the listener for notifying the FPS changes. **Parameters:**

Name	Description
onFPSChangedListener	Indicates the pointer to the FPS change notification function. For details, see OnFPSChangedListener.

## RegisterScrollListener\(\) ``` void OHOS::UIScrollView::RegisterScrollListener ([OnScrollListener](OHOS-UIScrollView-OnScrollListener.md) * scrollListener) ``` **Description:** Registers a listener that contains a callback to be invoked upon scroll state changes. **Parameters:**

Name	Description
scrollListener	Indicates the listener to register. For details, see OnScrollListener.

## RegisterSelectedListener\(\) \[1/2\] ``` void OHOS::UIPicker::RegisterSelectedListener ([SelectedListener](OHOS-UIPicker-SelectedListener.md) * pickerListener) ``` **Description:** Registers a listener for a selected event. **Parameters:**

Name	Description
pickerListener	Indicates the listener for a selected event in the picker. For details, see SelectedListener.

## RegisterSelectedListener\(\) \[2/2\] ``` void OHOS::UITimePicker::RegisterSelectedListener ([SelectedListener](OHOS-UITimePicker-SelectedListener.md) * timePickerListener) ``` **Description:** Registers a listener for a selected event. **Parameters:**

Name	Description
timePickerListener	Indicates the listener to register. For details, see SelectedListener.

## ReleaseEvent\(\) ``` OHOS::ReleaseEvent::ReleaseEvent (const [Point](OHOS-Point.md) & pos) ``` **Description:** A constructor used to create a **[ReleaseEvent](OHOS-ReleaseEvent.md)** instance. **Parameters:**

Name	Description
pos	Indicates the position where the release event occurs.

## ReMeasure\(\) ``` virtual void OHOS::UIView::ReMeasure () ``` **Description:** Remeasures the view size. ## Remove\(\) \[1/4\] ``` void OHOS::AnimatorManager::Remove (const [Animator](OHOS-Animator.md) * animator) ``` **Description:** Removes the **[Animator](OHOS-Animator.md)** instance from the **[AnimatorManager](OHOS-AnimatorManager.md)** linked list. **Parameters:**

Name	Description
animator	Indicates the pointer to the Animator instance to remove.

**See also:** [Add](Graphic.md#ga8b60ed045dc2a3370498a3e6922d5400) ## Remove\(\) \[2/4\] ``` void [OHOS::List](OHOS-List-T.md)< T >::Remove ([ListNode](OHOS-ListNode-T.md)< T > * node) ``` **Description:** Deletes a data node. **Parameters:**

Name	Description
node	Indicates the pointer to the node to delete.

## Remove\(\) \[3/4\] ``` virtual void OHOS::UIViewGroup::Remove ([UIView](OHOS-UIView.md) * view) ``` **Description:** Removes a child view. Reimplemented in [OHOS::UISwipeView](Graphic.md#ga2a4f70938a7d2298a318dff6dff95e85). **Parameters:**

Name	Description
view	Indicates the pointer to the child view to remove.

## Remove\(\) \[4/4\] ``` virtual void OHOS::UISwipeView::Remove ([UIView](OHOS-UIView.md) * view) ``` **Description:** Deletes a view. Reimplemented from [OHOS::UIViewGroup](Graphic.md#ga25523928b24d6692f18aed31edb07006). **Parameters:**

Name	Description
view	Indicates the view to delete.

## RemoveAll\(\) \[1/2\] ``` virtual void OHOS::UIViewGroup::RemoveAll () ``` **Description:** Removes all child views. Reimplemented in [OHOS::UIList](Graphic.md#gaa55aae2e8066fecc5941e021a7f30d7e). ## RemoveAll\(\) \[2/2\] ``` void OHOS::UIList::RemoveAll () ``` **Description:** Removes all child views. Reimplemented from [OHOS::UIViewGroup](Graphic.md#gaf3ee08173d92932687809049e3c11e9b). ## Reset\(\) ``` void OHOS::UITextureMapper::Reset () ``` **Description:** Displays the original image. The configured parameters are reserved and will not be reset. ## Resize\(\) \[1/3\] ``` void OHOS::Rect::Resize (int16_t width, int16_t height ) ``` **Description:** Sets the width and height of a rectangle. **Parameters:**

Name	Description
width	Indicates the width of the rectangle.
height	Indicates the height of the rectangle.

## Resize\(\) \[2/3\] ``` virtual void OHOS::UIView::Resize (int16_t width, int16_t height ) ``` **Description:** Adjusts the size of the view. Reimplemented in [OHOS::UISurfaceView](Graphic.md#gaa860971513d96f553be4e251f25c0262). **Parameters:**

Name	Description
width	Indicates the new width.
height	Indicates the new height.

## Resize\(\) \[3/3\] ``` void OHOS::UISurfaceView::Resize (int16_t width, int16_t height ) ``` **Description:** Adjusts the size of this view. Reimplemented from [OHOS::UIView](Graphic.md#gae985b607d2f0701911778bf20d640ccd). **Parameters:**

Name	Description
width	Indicates the new width.
height	Indicates the new height.

## ResizeVisibleArea\(\) ``` void OHOS::UIView::ResizeVisibleArea (int16_t x, int16_t y, int16_t width, int16_t height ) ``` **Description:** Adjusts the size of the visible area. This operation may affect the final display size. **Parameters:**

Name	Description
x	Indicates the new x-coordinate.
y	Indicates the new y-coordinate.
width	Indicates the new width.
height	Indicates the new height.

## Resume\(\) \[1/2\] ``` void OHOS::Animator::Resume () ``` **Description:** Resumes this animator from where it was paused. **See also:** [Pause](Graphic.md#ga4dd9d23ebff1359bd1145fd2f26e1be2) ## Resume\(\) \[2/2\] ``` void OHOS::UIImageAnimatorView::Resume () ``` **Description:** Resumes this animator from the current image. **See also:** [Pause](Graphic.md#gab8af32245cdf31fcc0a9d0a5d681774c) ## Rotate\(\) \[1/5\] ``` void OHOS::Rotate (const [Line](OHOS-Line.md) & origLine, int16_t angle, const [Vector2](OHOS-Vector2-T.md)< int16_t > & pivot, [Line](OHOS-Line.md) & out ) ``` **Description:** Rotates a line around the pivot by a certain angle. **Parameters:**

Name	Description
origLine	Indicates the line segment to rotate.
angle	Indicates the angle to rotate.
pivot	Indicates the rotation pivot.
out	Indicates the line generated after rotation.

## Rotate\(\) \[2/5\] ``` void OHOS::Rotate (const [Rect](OHOS-Rect.md) & origRect, int16_t angle, const [Vector2](OHOS-Vector2-T.md)< int16_t > & pivot, [Polygon](OHOS-Polygon.md) & out ) ``` **Description:** Rotates a rectangle around the pivot by a certain angle. **Parameters:**

Name	Description
origRect	Indicates the rectangle to rotate.
angle	Indicates the angle to rotate.
pivot	Indicates the rotation pivot.
out	Indicates the polygon generated after the rectangle is rotated.

## Rotate\(\) \[3/5\] ``` void OHOS::Rotate (const [Vector2](OHOS-Vector2-T.md)< int16_t > & point, int16_t angle, const [Vector2](OHOS-Vector2-T.md)< int16_t > & pivot, [Vector2](OHOS-Vector2-T.md)< int16_t > & out ) ``` **Description:** Rotates a point around the pivot by a certain angle. **Parameters:**

Name	Description
point	Indicates the point to rotate.
angle	Indicates the angle to rotate.
pivot	Indicates the rotation pivot.
out	Indicates the point generated after rotation.

## Rotate\(\) \[4/5\] ``` void OHOS::TransformMap::Rotate (int16_t angle, const [Vector2](OHOS-Vector2-T.md)< int16_t > & pivot ) ``` **Description:** Rotates the rectangle. **Parameters:**

Name	Description
angle	Indicates the angle to rotate.
pivot	Indicates the rotation pivot.

## Rotate\(\) \[5/5\] ``` [Matrix3](OHOS-Matrix3-T.md)< T > [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::Rotate (T angle, const [Vector2](OHOS-Vector2-T.md)< T > & pivot ) ``` **Description:** Obtains a rotation matrix. After a matrix is rotated, its data is shifted leftwards by 15 bits. Therefore, the result data needs to be shifted rightwards by 15 bits. **Parameters:**

Name	Description
angle	Indicates the angle to rotate.
pivot	Indicates the rotation pivot.

**Returns:** Returns the matrix after rotation. ## Scale\(\) \[1/2\] ``` void OHOS::TransformMap::Scale (const [Vector2](OHOS-Vector2-T.md)< float > scale, const [Vector2](OHOS-Vector2-T.md)< int16_t > & pivot ) ``` **Description:** Scales the rectangle. **Parameters:**

Name	Description
scale	Indicates the scaling factors of the x-axis and y-axis.
pivot	Indicates the pivot for scaling.

## Scale\(\) \[2/2\] ``` [Matrix3](OHOS-Matrix3-T.md)< T > [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::Scale (const [Vector2](OHOS-Vector2-T.md)< T > & scale, const [Vector2](OHOS-Vector2-T.md)< T > & fixed ) ``` **Description:** Obtains the scaling matrix. After a matrix is scaled, its data is shifted leftwards by 8 bits. Therefore, the result data needs to be shifted rightwards by 8 bits. **Parameters:**

Name	Description
scale	Indicates the scaling factors of the x-axis and y-axis.
fixed	Indicates the fixed scaling point.

**Returns:** Returns the matrix after scaling. ## ScrollBy\(\) \[1/2\] ``` void OHOS::UIList::ScrollBy (int16_t distance) ``` **Description:** Scrolls the content in this list. **Parameters:**

Name	Description
distance	Indicates the distance by which the content is scrolled.

## ScrollBy\(\) \[2/2\] ``` void OHOS::UIScrollView::ScrollBy (int16_t xDistance, int16_t yDistance ) ``` **Description:** Scrolls the content of this view. **Parameters:**

Name	Description
xDistance	Indicates the offset distance by which the content is scrolled on the x-axis.
yDistance	Indicates the offset distance by which the content is scrolled on the y-axis.

## ScrollTo\(\) ``` void OHOS::UIList::ScrollTo (uint16_t index) ``` **Description:** Scrolls to change the index of the first row or column of the current view. **Parameters:**

Name	Description
index	Indicates the new index of the first row or column of the current view.

## SelectedListener\(\) \[1/2\] ``` OHOS::UITimePicker::SelectedListener::SelectedListener () ``` **Description:** A constructor used to create a **[SelectedListener](OHOS-UITimePicker-SelectedListener.md)** instance. ## SelectedListener\(\) \[2/2\] ``` OHOS::UIPicker::SelectedListener::SelectedListener () ``` **Description:** A constructor used to create a **[SelectedListener](OHOS-UIPicker-SelectedListener.md)** instance. ## SetAdapter\(\) ``` void OHOS::UIList::SetAdapter ([AbstractAdapter](OHOS-AbstractAdapter.md) * adapter) ``` **Description:** Sets the adapter for this list. The content of this list is initialized when the adapter is set. **Parameters:**

Name	Description
adapter	Indicates the adapter to set. For details, see AbstractAdapter.

## SetAlign\(\) \[1/4\] ``` void OHOS::UILabelButton::SetAlign ([UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) align) ``` **Description:** Sets the alignment mode for this text. **Parameters:**

Name	Description
align	Indicates the text alignment mode to set, as defined in UITextLanguageAlignment.

## SetAlign\(\) \[2/4\] ``` void OHOS::UIArcLabel::SetAlign ([UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) horizontalAlign) ``` **Description:** Sets the alignment mode for this text. **Parameters:**

Name	Description
horizontalAlign	Indicates the horizontal alignment mode to set, which can be TEXT_ALIGNMENT_LEFT, TEXT_ALIGNMENT_CENTER, or TEXT_ALIGNMENT_RIGHT.

## SetAlign\(\) \[3/4\] ``` void OHOS::Text::SetAlign ([UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) horizontalAlign, [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) verticalAlign = [/topic/body/section/screen/code {""}) TEXT_ALIGNMENT_TOP (code] ) ``` **Description:** Sets the alignment mode for this text. **Parameters:**

Name	Description
horizontalAlign	Indicates the horizontal alignment mode to set, which can be TEXT_ALIGNMENT_LEFT, TEXT_ALIGNMENT_CENTER, or TEXT_ALIGNMENT_RIGHT.
verticalAlign	Indicates the vertical alignment mode to set, which can be TEXT_ALIGNMENT_TOP (default mode), TEXT_ALIGNMENT_CENTER, or TEXT_ALIGNMENT_BOTTOM.

## SetAlign\(\) \[4/4\] ``` void OHOS::UILabel::SetAlign ([UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) horizontalAlign, [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) verticalAlign = [/topic/body/section/screen/code {""}) TEXT_ALIGNMENT_TOP (code] ) ``` **Description:** Sets the alignment mode for this text. **Parameters:**

Name	Description
horizontalAlign	Indicates the horizontal alignment mode to set, which can be TEXT_ALIGNMENT_LEFT, TEXT_ALIGNMENT_CENTER, or TEXT_ALIGNMENT_RIGHT.
verticalAlign	Indicates the vertical alignment mode to set, which can be TEXT_ALIGNMENT_TOP (default mode), TEXT_ALIGNMENT_CENTER, or TEXT_ALIGNMENT_BOTTOM.

## SetAnimatorStopListener\(\) \[1/2\] ``` void OHOS::UITextureMapper::SetAnimatorStopListener ([AnimatorStopListener](OHOS-UITextureMapper-AnimatorStopListener.md) * listener) ``` **Description:** Sets the listener for the stop of this animator. **Parameters:**

Name	Description
listener	Indicates the listener to set. For details, see AnimatorStopListener.

## SetAnimatorStopListener\(\) \[2/2\] ``` void OHOS::UIImageAnimatorView::SetAnimatorStopListener ([AnimatorStopListener](OHOS-UIImageAnimatorView-AnimatorStopListener.md) * listener) ``` **Description:** Sets the listener for the stop of this animator. **Parameters:**

Name	Description
listener	Indicates the listener to set. For details, see AnimatorStopListener.

## SetAnimatorTime\(\) ``` void OHOS::UISwipeView::SetAnimatorTime (uint16_t time) ``` **Description:** Sets the time for the page being animated. The page will go beyond the blank during this time. **Parameters:**

Name	Description
time	Indicates the time of the page being animated.

## SetArcTextAngle\(\) ``` void OHOS::UIArcLabel::SetArcTextAngle (int16_t startAngle, int16_t endAngle ) ``` **Description:** Sets the start angle and end angle for this arc text. The angle in 12 o'clock direction is 0 degrees, and the value increases clockwise. The text direction is clockwise when the end angle is greater than the start angle, and the text direction is counterclockwise otherwise. **Parameters:**

Name	Description
startAngle	Indicates the start angle to set.
endAngle	Indicates the end angle to set.

## SetArcTextCenter\(\) ``` void OHOS::UIArcLabel::SetArcTextCenter (int16_t x, int16_t y ) ``` **Description:** Sets the center position for this arc text. **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.
y	Indicates the y-coordinate to set.

## SetArcTextOrientation\(\) ``` void OHOS::UIArcLabel::SetArcTextOrientation ([TextOrientation](Graphic.md#ga0778527bee4a7ddd8d46395585a5cfb9) orientation) ``` **Description:** Sets the orientation for this arc text. **Parameters:**

Name	Description
orientation	Indicates the text orientation to set.

## SetArcTextRadius\(\) ``` void OHOS::UIArcLabel::SetArcTextRadius (uint16_t radius) ``` **Description:** Sets the radius for this arc text. **Parameters:**

Name	Description
radius	Indicates the radius to set.

## SetAutoEnable\(\) ``` void OHOS::UIImageView::SetAutoEnable (bool enable) ``` **Description:** Sets whether the image view size needs to be adaptive to the image size. **Parameters:**

Name	Description
enable	Specifies whether the image view size needs to be adaptive to the image size. true indicates that automatic adaption is enabled, and false indicates the opposite case.

## SetAutoSize\(\) ``` void OHOS::UIViewGroup::SetAutoSize (bool state) ``` **Description:** Sets whether the size of this view group is adaptive to that of all child views. **Parameters:**

Name	Description
state	Specifies whether the size of this view group is adaptive to that of all child views. true indicates automatic adaption is enabled, and false indicates the opposite case.

## SetBackgroundImagePosition\(\) ``` void OHOS::UICircleProgress::SetBackgroundImagePosition (int16_t x, int16_t y ) ``` **Description:** Sets the coordinates of the background image for this progress bar relative to the view. **Parameters:**

Name	Description
x	Indicates the x-coordinate to set. The default value is 0.
y	Indicates the y-coordinate to set. The default value is 0.

**See also:** [SetProgressImagePosition](Graphic.md#ga62b71500ccc75673be297d2e114c0c1b) ## SetBackgroundStyle\(\) \[1/2\] ``` void OHOS::UIAbstractProgress::SetBackgroundStyle (const [Style](OHOS-Style.md) & style) ``` **Description:** Sets the background style for this progress bar. **Parameters:**

Name	Description
style	Indicates the background style of the progress bar. For details, see Style.

**See also:** [SetForegroundStyle](Graphic.md#gaccebcfa35f98f9bc6be4bb8cc53eb11c) | [GetBackgroundStyle](Graphic.md#gac2ca1212c23c11405b12ae0a46c7eff1) ## SetBackgroundStyle\(\) \[2/2\] ``` void OHOS::UIAbstractProgress::SetBackgroundStyle (uint8_t key, int64_t value ) ``` **Description:** Sets a background style for this progress bar. **Parameters:**

Name	Description
key	Indicates the key of the style to set.
value	Indicates the value matching the key.

## SetBackOvershoot\(\) ``` static void OHOS::EasingEquation::SetBackOvershoot (double overshoot) ``` **Description:** Sets the parameter **s** in the equation **\(s+1\)\*t^3 - s\*t^2** for a back easing. A larger **s** indicates a larger degree of overshoot. The default value is 1.7. You are advised to set this parameter to a value ranging from 1 to 4. The setting takes effect for all the back-ease animations. **Parameters:**

Name	Description
overshoot	Indicates the overshoot s in the equation to set.

**See also:** [BackEaseIn](Graphic.md#ga4598524b16a33de497fa9321d887d3b1) | [BackEaseOut](Graphic.md#ga7399f01f7abc33413bf25aa17a99c2f2) | [BackEaseInOut](Graphic.md#gac7c2a9a1dfce384438a3bd9d6c0c2525) ## SetBlankSize\(\) ``` void OHOS::UISwipeView::SetBlankSize (uint16_t size) ``` **Description:** Sets a blank size, as defined in [DEFAULT\_BLANK\_SIZE](Graphic.md#ga81883a607d2cb3356560fc0f8f84cf74). **Parameters:**

Name	Description
size	Indicates the blank size to set.

## SetBlurLevel\(\) ``` void OHOS::UIImageView::SetBlurLevel (BlurLevel level) ``` **Description:** Sets the blur level for this image when it is rotated or scaled. **Parameters:**

Name	Description
level	Indicates the blur level to set. For details, see BlurLevel.

## SetBottom\(\) ``` void OHOS::Rect::SetBottom (int16_t bottom) ``` **Description:** Sets the coordinate of the bottom boundary of a rectangle. **Parameters:**

Name	Description
bottom	Indicates the coordinate of the bottom boundary.

## SetBottomPointStyle\(\) ``` void OHOS::UIChartDataSerial::SetBottomPointStyle (const [PointStyle](OHOS-UIChartDataSerial-PointStyle.md) & style) ``` **Description:** Sets the style of the bottom point of a polyline. **Parameters:**

Name	Description
style	Indicates the style to set. For details, see PointStyle.

## SetButton\(\) ``` void OHOS::UIDialog::SetButton ([DialogButtonType](Graphic.md#ga1bfefa0b46fd5a79a28d0c9a75114295) buttonType, const char * text, [OnClickListener](OHOS-UIView-OnClickListener.md) * listener ) ``` **Description:** Sets a button for this dialog box. **Parameters:**

Name	Description
buttonType	Indicates the button position.
text	Indicates the pointer to the button text.
listener	Indicates the pointer to the listener registered for the button.

## SetCapType\(\) ``` void OHOS::UIAbstractProgress::SetCapType ([CapType](Graphic.md#ga2db3928cdf793f4950245a6841dd43d6) cap) ``` **Description:** Sets the type of caps on the background and foreground of the progress bar. **Parameters:**

Name	Description
cap	Indicates the cap type. For details, see CapType.

## SetCenterPosition\(\) ``` void OHOS::UICircleProgress::SetCenterPosition (int16_t x, int16_t y ) ``` **Description:** Sets the coordinates of the center point for this circular progress bar. The coordinates of the center point refer to the position relative to the view. **Parameters:**

Name	Description
x	Indicates the x-coordinate to set. The default value is 0.
y	Indicates the y-coordinate to set. The default value is 0.

**See also:** [GetCenterPosition](Graphic.md#ga706ac374a1383cef01dfc59c5257e480) ## SetColor\(\) ``` void OHOS::UIDigitalClock::SetColor ([ColorType](OHOS-Color32.md) color) ``` **Description:** Sets the font color for this digital clock. **Parameters:**

Name	Description
color	Indicates the front color to set.

## SetCols\(\) ``` void OHOS::GridLayout::SetCols (const uint16_t & cols) ``` **Description:** Sets the number of columns in a grid. **Parameters:**

Name	Description
cols	Indicates the number of columns to set.

## SetCurrent\(\) ``` void OHOS::ThemeManager::SetCurrent ([Theme](OHOS-Theme.md) * theme) ``` **Description:** Sets the current screen theme for this application. **Parameters:**

Name	Description
theme	Indicates the theme to set.

## SetCurrentPage\(\) ``` void OHOS::UISwipeView::SetCurrentPage (uint16_t index, bool needAnimator = [/topic/body/section/screen/code {""}) false (code] ) ``` **Description:** Sets the index for the current tab. **Parameters:**

Name	Description
index	Indicates the index of a view.
needAnimator	Specifies whether a flip animation is needed. false (default value) indicates a flip animation is not needed, and true indicates the opposite case.

## SetData\(\) \[1/2\] ``` void OHOS::TextAdapter::SetData (int16_t start, int16_t end ) ``` **Description:** Sets continuously increasing data. For example, if you need to set data **0**, **1**, **2**, **3**, **4**, use this function to set **start** to 0 and **end** to 4. **Parameters:**

Name	Description
start	Indicates the start value of the integer data.
end	Indicates the end value of the integer data.

## SetData\(\) \[2/2\] ``` void OHOS::TextAdapter::SetData ([List](OHOS-List-T.md)< const char * > * data) ``` **Description:** Sets the [UILabel](OHOS-UILabel.md) adapter data, which is a string linked list. **Parameters:**

Name	Description
data	Indicates the string linked list data.

## SetDataRange\(\) \[1/3\] ``` bool OHOS::UIXAxis::SetDataRange (uint16_t min, uint16_t max ) ``` **Description:** Sets the value range of the X axis. The maximum value must be greater than the minimum value. Otherwise, the setting fails. Implements [OHOS::UIAxis](Graphic.md#gabb486419e729add9ff85a24371253bf8). **Parameters:**

Name	Description
min	Indicates the minimum value to set.
max	Indicates the maximum value to set.

**Returns:** Returns **true** if the setting is successful; returns **false** otherwise. ## SetDataRange\(\) \[2/3\] ``` bool OHOS::UIYAxis::SetDataRange (uint16_t min, uint16_t max ) ``` **Description:** Sets the value range of the y-axis. The maximum value must be greater than the minimum value. Otherwise, the setting fails. Implements [OHOS::UIAxis](Graphic.md#gabb486419e729add9ff85a24371253bf8). **Parameters:**

Name	Description
min	Indicates the minimum value to set.
max	Indicates the maximum value to set.

**Returns:** Returns **true** if the setting is successful; returns **false** otherwise. ## SetDataRange\(\) \[3/3\] ``` virtual bool OHOS::UIAxis::SetDataRange (uint16_t min, uint16_t max ) ``` **Description:** Sets the value range of a coordinate axis. The maximum value must be greater than the minimum value. Otherwise, the setting fails. Implemented in [OHOS::UIYAxis](Graphic.md#gae635d27e0a4eba30002e3607c42b914a), and [OHOS::UIXAxis](Graphic.md#ga2181796eef584a71a5db9186399720aa). **Parameters:**

Name	Description
min	Indicates the minimum value to set.
max	Indicates the maximum value to set.

**Returns:** Returns **true** if the setting is successful; returns **false** otherwise. ## SetDelayTime\(\) ``` void OHOS::UITextureMapper::SetDelayTime (uint16_t delayTime) ``` **Description:** Sets the delay time for this animator, in milliseconds. The delays of image scaling and rotation are the same and cannot be set separately. **Parameters:**

Name	Description
delayTime	Indicates the delay time to set.

## SetDirect\(\) \[1/5\] ``` void OHOS::Text::SetDirect ([UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) direct) ``` **Description:** Sets the direction for this text. **Parameters:**

Name	Description
direct	Indicates the text direction, as defined in UITextLanguageDirect.

## SetDirect\(\) \[2/5\] ``` void OHOS::UILabelButton::SetDirect ([UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) direct) ``` **Description:** Sets the direction for this text. **Parameters:**

Name	Description
direct	Indicates the text direction to set, as defined in UITextLanguageDirect.

## SetDirect\(\) \[3/5\] ``` void OHOS::TextAdapter::SetDirect ([UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) direct) ``` **Description:** Sets the direction of the [UILabel](OHOS-UILabel.md) constructed by the adapter. **Parameters:**

Name	Description
direct	Indicates the direction of the UILabel constructed by the adapter.

## SetDirect\(\) \[4/5\] ``` void OHOS::UILabel::SetDirect ([UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) direct) ``` **Description:** Sets the direction for this text. **Returns:** direct Returns the text direction, as defined in **UITextLanguageDirect**. ## SetDirect\(\) \[5/5\] ``` void OHOS::UIPicker::SetDirect ([UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) direct) ``` **Description:** Sets the text direction. **Parameters:**

Name	Description
direct	Indicates the text direction to set. For details, see UITextLanguageDirect.

## SetDirection\(\) \[1/2\] ``` void OHOS::UIBoxProgress::SetDirection (const [Direction](Graphic.md#ga4a7a2c192206c8b18379f42a5fd176eb) & direction) ``` **Description:** Sets the direction for this progress bar. **Parameters:**

Name	Description
direction	Indicates the direction to set. The default direction is from left to right. For details, see Direction.

**See also:** [GetDirection](Graphic.md#ga493699e8d0e934d7fb3d5502529a1c5e) ## SetDirection\(\) \[2/2\] ``` void OHOS::UISwipeView::SetDirection (uint8_t direction) ``` **Description:** Sets the dragging direction. **Parameters:**

Name	Description
direction	Indicates the dragging direction, either HORIZONTAL or VERTICAL.

## SetDisallowIntercept\(\) ``` void OHOS::UIViewGroup::SetDisallowIntercept (bool flag) ``` **Description:** Sets whether this view group is intercepted upon touch events. **Parameters:**

Name	Description
flag	Specifies whether this view group is intercepted upon touch events. true indicates that this view group is intercepted upon touch events, and false indicates the opposite case.

## SetDisplayMode\(\) ``` void OHOS::UIDigitalClock::SetDisplayMode ([DisplayMode](Graphic.md#gabe3b64b11e5bf5d7b54e1039e40f306b) dm) ``` **Description:** Sets the display mode for this digital clock. **Parameters:**

Name	Description
dm	Indicates the display mode to set.

## SetDragACCLevel\(\) ``` void OHOS::UIAbstractScroll::SetDragACCLevel (uint16_t value) ``` **Description:** Sets the drag acceleration. **Parameters:**

Name	Description
value	Indicates the drag acceleration to set. The default value is 10. A larger drag acceleration indicates a higher inertial scroll velocity.

## SetDragFunc\(\) ``` void OHOS::UIAbstractScroll::SetDragFunc (EasingFunc func) ``` **Description:** Sets the easing function that specifies a scroll animation after a finger lifts the screen. **Parameters:**

Name	Description
func	Indicates the easing function to set. The default function is EasingEquation::CubicEaseOut. For details, see EasingEquation.

## SetDraggable\(\) ``` void OHOS::UIView::SetDraggable (bool draggable) ``` **Description:** Sets whether the view is draggable. **Parameters:**

Name	Description
draggable	Specifies whether to set the view draggable. Value true means to set the view draggable, and false means the opposite.

## SetDragParentInstead\(\) ``` void OHOS::UIView::SetDragParentInstead (bool dragParentInstead) ``` **Description:** Sets whether to transfer the drag event to the parent view for processing when the view is being dragged. **Parameters:**

Name	Description
dragParentInstead	Specifies whether to transfer the event to the parent view for processing. Value true means to transfer the event to the parent view for processing, and false means the opposite.

## SetDurationTime\(\) ``` void OHOS::UITextureMapper::SetDurationTime (uint16_t durationTime) ``` **Description:** Sets the duration for this animator, in milliseconds. The durations of image scaling and rotation are the same and cannot be set separately. **Parameters:**

Name	Description
durationTime	Indicates the duration to set.

## SetEasingFunc\(\) ``` void OHOS::UITextureMapper::SetEasingFunc (EasingFunc easingFunc) ``` **Description:** Sets the easing function for this animator. The easing functions for image scaling and rotation are the same and cannot be set separately. **Parameters:**

Name	Description
easingFunc	Indicates the easing function to set. The animation moves at a constant velocity by default. For details, see EasingEquation.

## SetEndAngle\(\) ``` void OHOS::UICircleProgress::SetEndAngle (int16_t endAngle) ``` **Description:** Sets the end angle. The 12-clock direction is 0 degrees, and the 3-clock direction is 90 degrees. If the start angle is smaller than the end angle, the progress bar is clockwise. Otherwise, the progress bar is anticlockwise. The maximum range of a progress bar is a circle. If the difference between the start angle and end angle exceeds 360 degrees, a circular progress bar is created. **Parameters:**

Name	Description
endAngle	Indicates the end angle to set, which can be any value represented by int16_t. The default value is 360.

**See also:** [GetEndAngle](Graphic.md#gacab2327bfc24ee985818a95d468af181) | [SetStartAngle](Graphic.md#gae27e30bd77b83bc55ecc9f2a5643943a) ## SetExpandHeight\(\) ``` void OHOS::Text::SetExpandHeight (bool expand) ``` **Description:** Sets whether to adapt the component height to this text. **Parameters:**

Name	Description
expand	Specifies whether to adapt the component height to this text. The value true indicates that the component height will adapt to this text, and false indicates not.

## SetExpandWidth\(\) ``` void OHOS::Text::SetExpandWidth (bool expand) ``` **Description:** Sets whether to adapt the component width to this text. **Parameters:**

Name	Description
expand	Specifies whether to adapt the component width to this text. The value true indicates that the component width will adapt to this text, and false indicates not.

## SetFillColor\(\) \[1/2\] ``` void OHOS::Paint::SetFillColor ([ColorType](OHOS-Color32.md) color) ``` **Description:** Sets fill color. This function is valid only for closed graphs. **Parameters:**

Name	Description
color	Indicates the fill color to set.

**See also:** [GetFillColor](Graphic.md#gadc1b88c39670f103e0c84a089e2178cf) ## SetFillColor\(\) \[2/2\] ``` void OHOS::UIChartDataSerial::SetFillColor (const [ColorType](OHOS-Color32.md) & color) ``` **Description:** Sets the fill color of the data set. For a line chart, **color** refers to the fill color between the line and the x-axis. For a bar chart, **color** refers to the color of the bars. **Parameters:**

Name	Description
color	Indicates the fill color to set.

**See also:** [GetFillColor](Graphic.md#ga3b20df3a339aa0f41d404eb3dc1d12ca) ## SetFlexWrap\(\) ``` void OHOS::FlexLayout::SetFlexWrap (uint8_t wrap) ``` **Description:** Sets whether to support word wrap. **Parameters:**

Name	Description
wrap	Indicates the word wrap attribute.

## SetFont\(\) \[1/6\] ``` void OHOS::UIDigitalClock::SetFont (const char * name, uint8_t size ) ``` **Description:** Sets the dynamic font for this digital clock. **Parameters:**

Name	Description
name	Indicates the pointer to the font name.
size	Indicates the font size to set.

## SetFont\(\) \[2/6\] ``` void OHOS::Text::SetFont (const char * name, uint8_t size ) ``` **Description:** Sets the font name and size. **Parameters:**

Name	Description
name	Indicates the pointer to the font name.
size	Indicates the font size to set.

## SetFont\(\) \[3/6\] ``` void OHOS::TextAdapter::SetFont (const char * name, uint8_t size ) ``` **Description:** Sets the font. **Parameters:**

Name	Description
name	Indicates the pointer to the font name.
size	Indicates the font size to set.

## SetFont\(\) \[4/6\] ``` void OHOS::UIArcLabel::SetFont (const char * name, uint8_t size ) ``` **Description:** Sets the font for this arc label. **Parameters:**

Name	Description
name	Indicates the pointer to the font name.
size	Indicates the font size to set.

## SetFont\(\) \[5/6\] ``` void OHOS::UILabelButton::SetFont (const char * name, uint8_t size ) ``` **Description:** Sets the font for this text. **Parameters:**

Name	Description
name	Indicates the pointer to the font name.
size	Indicates the font size to set.

## SetFont\(\) \[6/6\] ``` void OHOS::UILabel::SetFont (const char * name, uint8_t size ) ``` **Description:** Sets the font for this label. **Parameters:**

Name	Description
name	Indicates the pointer to the font name.
size	Indicates the font size to set.

## SetFontId\(\) \[1/7\] ``` void OHOS::UIPicker::SetFontId (uint8_t backgroundFontId, uint8_t highlightFontId ) ``` **Description:** Sets the font IDs of dynamic text, which is the string array set through [SetValues](Graphic.md#ga419bb15f72b02f009a76a84e1242b37a). **Parameters:**

Name	Description
backgroundFontId	Indicates the font ID of the background text.
highlightFontId	Indicates the font ID of the highlighted text.

## SetFontId\(\) \[2/7\] ``` void OHOS::UIDigitalClock::SetFontId (uint8_t fontId) ``` **Description:** Sets the dynamic font ID for this digital clock. **Parameters:**

Name	Description
fontId	Indicates the dynamic font ID to set.

## SetFontId\(\) \[3/7\] ``` void OHOS::TextAdapter::SetFontId (uint8_t fontId) ``` **Description:** Sets font ID. **Parameters:**

Name	Description
fontId	Indicates the font ID. For details, see UITextLanguageFontId.

## SetFontId\(\) \[4/7\] ``` void OHOS::Text::SetFontId (uint8_t fontId) ``` **Description:** Sets the font ID. **Parameters:**

Name	Description
fontId	Indicates the font ID to set.

## SetFontId\(\) \[5/7\] ``` void OHOS::UIArcLabel::SetFontId (uint8_t fontId) ``` **Description:** Sets the font ID for this arc label. **Parameters:**

Name	Description
fontId	Indicates the font ID composed of font name and size.

## SetFontId\(\) \[6/7\] ``` void OHOS::UILabelButton::SetFontId (uint8_t fontId) ``` **Description:** Sets the font ID. **Parameters:**

Name	Description
fontId	Indicates the font ID composed of the font name and size.

## SetFontId\(\) \[7/7\] ``` void OHOS::UILabel::SetFontId (uint8_t fontId) ``` **Description:** Sets the font ID for this label. **Parameters:**

Name	Description
fontId	Indicates the font ID composed of font name and size.

## SetForegroundStyle\(\) \[1/2\] ``` void OHOS::UIAbstractProgress::SetForegroundStyle (const [Style](OHOS-Style.md) & style) ``` **Description:** Sets the foreground style for this progress bar. **Parameters:**

Name	Description
style	Indicates the foreground style of this progress bar. For details, see Style.

**See also:** [SetBackgroundStyle](Graphic.md#ga6817b5178e93e5f16f2b420cf5a171c1) | [GetForegroundStyle](Graphic.md#gac77f945f375f333f80bd70254b5c1f96) ## SetForegroundStyle\(\) \[2/2\] ``` void OHOS::UIAbstractProgress::SetForegroundStyle (uint8_t key, int64_t value ) ``` **Description:** Sets a foreground style for this progress bar. **Parameters:**

Name	Description
key	Indicates the key of the style to set.
value	Indicates the value matching the key.

## SetFPSCalculateType\(\) ``` void OHOS::SysInfo::OnFPSChangedListener::SetFPSCalculateType ([FPSCalculateType](Graphic.md#ga75d850e3abff6c2f617b689a0cb9a3d1) type) ``` **Description:** Sets the FPS sampling type. **Parameters:**

Name	Description
type	Indicates the FPS sampling type. For details, see FPSCalculateType.

## SetGradientBottom\(\) ``` void OHOS::UIChartPolyline::SetGradientBottom (uint16_t bottom) ``` **Description:** Sets the distance between the bottom edge of the fill color range and the x-axis. This function fills in the area between the polyline and bottom of the line chart. For a chart that is not reversed, if the bottom is above the polyline, there is no filling. For a reversed chart, if the bottom is below the polyline, there is no filling. **Parameters:**

Name	Description
bottom	Indicates the bottom of the filling range. The value is the distance to the x-axis.

## SetGradientOpacity\(\) ``` void OHOS::UIChartPolyline::SetGradientOpacity (uint8_t minOpa, uint8_t maxOpa ) ``` **Description:** Sets the opacity range of the fill color gradient. This function sets the opacity range between the top point and bottom point of the line chart. The opacity of each horizontal line is calculated based on the ratio. **Parameters:**

Name	Description
minOpa	Indicates the opacity closest to the x-axis.
maxOpa	Indicates the opacity farthest away from the x-axis.

## SetHandImage\(\) ``` void OHOS::UIAnalogClock::SetHandImage ([HandType](Graphic.md#ga13cf64ea5bd39550976aaf65b1381edf) type, const [UIImageView](OHOS-UIImageView.md) & img, [Point](OHOS-Point.md) position, [Point](OHOS-Point.md) center ) ``` **Description:** Sets the image used to draw a clock hand. **Parameters:**

Name	Description
type	Indicates the clock hand type, as enumerated in HandType.
img	Indicates the image to set.
position	Indicates the start position of this image.
center	Indicates the rotation center of this clock hand.

## SetHandLine\(\) ``` void OHOS::UIAnalogClock::SetHandLine ([HandType](Graphic.md#ga13cf64ea5bd39550976aaf65b1381edf) type, [Point](OHOS-Point.md) position, [Point](OHOS-Point.md) center, [ColorType](OHOS-Color32.md) color, uint16_t width, uint16_t height, OpacityType opacity ) ``` **Description:** Sets the line used to draw a clock hand. **Parameters:**

Name	Description
type	Indicates the clock hand type, as enumerated in HandType.
position	Indicates the position of the line endpoint close to the rotation center.
center	Indicates the rotation center of this clock hand.
color	Indicates the color of this line.
width	Indicates the width of this line when it is 12 o'clock.
height	Indicates the height of this line when it is 12 o'clock.
opacity	Indicates the opacity of this line.

## SetHeadPointStyle\(\) ``` void OHOS::UIChartDataSerial::SetHeadPointStyle (const [PointStyle](OHOS-UIChartDataSerial-PointStyle.md) & style) ``` **Description:** Sets the style of the frontmost point on a polyline. **Parameters:**

Name	Description
style	Indicates the style to set. For details, see PointStyle.

## SetHeight\(\) \[1/10\] ``` void OHOS::TextAdapter::SetHeight (int16_t height) ``` **Description:** Sets the height of the [UILabel](OHOS-UILabel.md) constructed by the adapter. **Returns:** Returns the height of the [UILabel](OHOS-UILabel.md) constructed by the adapter. ## SetHeight\(\) \[2/10\] ``` void OHOS::Rect::SetHeight (int16_t height) ``` **Description:** Changes the height of the rectangle without changing the coordinate of the top boundary. **Parameters:**

Name	Description
height	Indicates the height of the rectangle.

## SetHeight\(\) \[3/10\] ``` virtual void OHOS::UIView::SetHeight (int16_t height) ``` **Description:** Sets the height for the view. Reimplemented in [OHOS::UIChart](Graphic.md#ga54b3c4122ebaeefe74587ca69aa98600), [OHOS::UILabel](Graphic.md#ga9998ddd0dfc0863d31f931a76f1da033), [OHOS::UIButton](Graphic.md#ga8b6dbfcd0328753c2c3cef4d14b0ff30), [OHOS::UIPicker](Graphic.md#ga167979fe09694b0f0c09e9c676189bea), [OHOS::UITimePicker](Graphic.md#ga06667e791f24098f22ef096ee6af77ad), [OHOS::UISurfaceView](Graphic.md#gaf90ada30a3336b947951d408b685787e), and [OHOS::UIBoxProgress](Graphic.md#ga54299cb7561cee9a03d0fc9d0ddda784). **Parameters:**

Name	Description
height	Indicates the height to set.

## SetHeight\(\) \[4/10\] ``` void OHOS::UIBoxProgress::SetHeight (int16_t height) ``` **Description:** Sets the height for this view. The height of the view must be greater than or equal to the actual height of the progress bar to ensure a normal display. You need to call this function before calling [SetValidHeight](Graphic.md#ga6958b8273ad7a5563dfa19267cc3a13c) to set the actual height of the progress bar. Otherwise, the height of the progress bar is reset to **height** of the view. Reimplemented from [OHOS::UIView](Graphic.md#ga9c7110620d5dc3a7bd3efe1fc2edd125). **Parameters:**

Name	Description
height	Indicates the height to set.

**See also:** [SetWidth](Graphic.md#ga4b3eeb9de2443182480a71cadb23178c) | [SetValidWidth](Graphic.md#gada3cf1819e826ee0aed4a40ef00b91a6) | [SetValidHeight](Graphic.md#ga6958b8273ad7a5563dfa19267cc3a13c) ## SetHeight\(\) \[5/10\] ``` void OHOS::UISurfaceView::SetHeight (int16_t height) ``` **Description:** Sets the height for this view. Reimplemented from [OHOS::UIView](Graphic.md#ga9c7110620d5dc3a7bd3efe1fc2edd125). **Parameters:**

Name	Description
height	Indicates the height to set.

## SetHeight\(\) \[6/10\] ``` void OHOS::UITimePicker::SetHeight (int16_t height) ``` **Description:** Sets the height for the time picker. Reimplemented from [OHOS::UIView](Graphic.md#ga9c7110620d5dc3a7bd3efe1fc2edd125). **Parameters:**

Name	Description
height	Indicates the height to set.

## SetHeight\(\) \[7/10\] ``` void OHOS::UIPicker::SetHeight (int16_t height) ``` **Description:** Sets the height for this component. Reimplemented from [OHOS::UIView](Graphic.md#ga9c7110620d5dc3a7bd3efe1fc2edd125). **Parameters:**

Name	Description
height	Indicates the height to set.

## SetHeight\(\) \[8/10\] ``` void OHOS::UIButton::SetHeight (int16_t height) ``` **Description:** Sets the height for this image. Reimplemented from [OHOS::UIView](Graphic.md#ga9c7110620d5dc3a7bd3efe1fc2edd125). **Parameters:**

Name	Description
height	Indicates the height to set.

## SetHeight\(\) \[9/10\] ``` void OHOS::UILabel::SetHeight (int16_t height) ``` **Description:** Sets the height for this label. Reimplemented from [OHOS::UIView](Graphic.md#ga9c7110620d5dc3a7bd3efe1fc2edd125). **Parameters:**

Name	Description
height	Indicates the height to set.

## SetHeight\(\) \[10/10\] ``` void OHOS::UIChart::SetHeight (int16_t height) ``` **Description:** Sets the height for this component. Reimplemented from [OHOS::UIView](Graphic.md#ga9c7110620d5dc3a7bd3efe1fc2edd125). **Parameters:**

Name	Description
height	Indicates the height to set.

## SetHorizontalScrollState\(\) ``` void OHOS::UIScrollView::SetHorizontalScrollState (bool state) ``` **Description:** Sets whether a horizontal scroll is enabled. **Parameters:**

Name	Description
state	Specifies whether a horizontal scroll is enabled. true indicates a horizontal scroll is enabled, and false indicates the opposite case.

## SetImage\(\) \[1/4\] ``` void OHOS::UISlider::SetImage (const char * backgroundImage, const char * foregroundImage, const char * knobImage ) ``` **Description:** Sets the images for this slider, including the background, foreground, and knob images. **Parameters:**

Name	Description
backgroundImage	Indicates the background image to set.
foregroundImage	Indicates the foreground image to set.
knobImage	Indicates the knob image to set.

## SetImage\(\) \[2/4\] ``` void OHOS::UIAbstractProgress::SetImage (const char * foregroundImage, const char * backgroundImage = [/topic/body/section/screen/code {""}) nullptr (code] ) ``` **Description:** Sets the image for this progress bar. The size of the image must be the same as that of the progress bar to ensure a normal display. If the value of any input parameter is **nullptr**, image filling is canceled. Instead, color filling will be adopted. **Parameters:**

Name	Description
foregroundImage	Indicates the foreground image of the progress bar. The default value is nullptr.
backgroundImage	Indicates the background image of the progress bar. The default value is nullptr.

## SetImage\(\) \[3/4\] ``` void OHOS::UISlider::SetImage (const [ImageInfo](OHOS-ImageInfo.md) * backgroundImage, const [ImageInfo](OHOS-ImageInfo.md) * foregroundImage, const [ImageInfo](OHOS-ImageInfo.md) * knobImage ) ``` **Description:** Sets the images as pixel maps for this slider, including the background, foreground, and knob images. **Parameters:**

Name	Description
backgroundImage	Indicates the background image to set.
foregroundImage	Indicates the foreground image to set.
knobImage	Indicates the knob image to set.

## SetImage\(\) \[4/4\] ``` void OHOS::UIAbstractProgress::SetImage (const [ImageInfo](OHOS-ImageInfo.md) * foregroundImage, const [ImageInfo](OHOS-ImageInfo.md) * backgroundImage = [/topic/body/section/screen/code {""}) nullptr (code] ) ``` **Description:** Sets the image as a pixel map for this progress bar. The size of the image must be the same as that of the progress bar to ensure a normal display. If the value of any input parameter is **nullptr**, image filling is canceled. Instead, color filling will be adopted. **Parameters:**

Name	Description
foregroundImage	Indicates the foreground image of the progress bar. The default value is nullptr.
backgroundImage	Indicates the background image of the progress bar. The default value is nullptr.

## SetImageAnimatorSrc\(\) \[1/2\] ``` void OHOS::UIImageAnimatorView::SetImageAnimatorSrc (const char * imageSrc, uint8_t imageNum ) ``` **Description:** Sets the images for this animator. **Parameters:**

Name	Description
imageSrc	Indicates the pointer to the ImageAnimatorInfo array for storing the configured image information. The memory cannot be released before this animator stops.
imageNum	Indicates the number of images.

**See also:** [GetImageAnimatorSrc](Graphic.md#gadc1064a27f9b95a2797c33793b2110ee) | [GetImageAnimatorImageNum](Graphic.md#ga1da191cab1e6b4ffb3a87b50fbe4f7ed) ## SetImageAnimatorSrc\(\) \[2/2\] ``` void OHOS::UIImageAnimatorView::SetImageAnimatorSrc (const char * imageSrc, uint8_t imageNum, uint16_t timeOfUpdate ) ``` **Description:** Sets the images and speed for this animator. **Parameters:**

Name	Description
imageSrc	Indicates the pointer to the ImageAnimatorInfo array for storing the configured image information. The memory cannot be released before this animator stops.
imageNum	Indicates the number of images.
timeOfUpdate	Indicates the interval for updating images, in milliseconds. The default value is 1.

**See also:** [GetTimeOfUpdate](Graphic.md#ga24411b0b4d9f619532aa879ee6ee7af1) | [GetImageAnimatorSrc](Graphic.md#gadc1064a27f9b95a2797c33793b2110ee) | [GetImageAnimatorImageNum](Graphic.md#ga1da191cab1e6b4ffb3a87b50fbe4f7ed) ## SetImagePosition\(\) ``` void OHOS::UIButton::SetImagePosition (const int16_t x, const int16_t y ) ``` **Description:** Sets the position for this image. **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.
y	Indicates the y-coordinate to set.

## SetImages\(\) \[1/2\] ``` virtual void OHOS::UICheckBox::SetImages (const char * selectedImageSrc, const char * unselectedImageSrc ) ``` **Description:** Sets the images for this check box. **Parameters:**

Name	Description
selectedImageSrc	Indicates the image for this check box when selected.
unselectedImageSrc	Indicates the image for this check box when unselected.

## SetImages\(\) \[2/2\] ``` virtual void OHOS::UICheckBox::SetImages (const [ImageInfo](OHOS-ImageInfo.md) * selectedImageSrc, const [ImageInfo](OHOS-ImageInfo.md) * unselectedImageSrc ) ``` **Description:** Sets the images for this check box. **Parameters:**

Name	Description
selectedImageSrc	Indicates the image for this check box when selected.
unselectedImageSrc	Indicates the image for this check box when unselected.

## SetImageSrc\(\) \[1/2\] ``` void OHOS::UIButton::SetImageSrc (const char * defaultImgSrc, const char * triggeredImgSrc ) ``` **Description:** Sets the image for this button. **Parameters:**

Name	Description
defaultImgSrc	Indicates the default image.
triggeredImgSrc	Indicates the image for a button when it is triggered.

## SetImageSrc\(\) \[2/2\] ``` void OHOS::UIButton::SetImageSrc (const [ImageInfo](OHOS-ImageInfo.md) * defaultImgSrc, const [ImageInfo](OHOS-ImageInfo.md) * triggeredImgSrc ) ``` **Description:** Sets the image for this button. **Parameters:**

Name	Description
defaultImgSrc	Indicates the default image.
triggeredImgSrc	Indicates the image for a button when it is triggered.

## SetInitTime12Hour\(\) ``` void OHOS::UIAnalogClock::SetInitTime12Hour (uint8_t hour, uint8_t minute, uint8_t second, bool am ) ``` **Description:** Sets the initial time in the 12-hour format. **Parameters:**

Name	Description
hour	Indicates the hour to set.
minute	Indicates the minute to set.
second	Indicates the second to set.
am	Specifies whether it is in the morning. true indicates that it is in the morning, and false indicates that it is in the afternoon.

## SetInitTime24Hour\(\) ``` void OHOS::UIAnalogClock::SetInitTime24Hour (uint8_t hour, uint8_t minute, uint8_t second ) ``` **Description:** Sets the initial time in the 24-hour format. **Parameters:**

Name	Description
hour	Indicates the hour to set.
minute	Indicates the minute to set.
second	Indicates the second to set.

## SetIntercept\(\) ``` void OHOS::UIView::SetIntercept (bool isIntercept) ``` **Description:** Sets whether to intercept the drag event. If intercepted, the view does not transfer the drag event to the parent view after local processing. **Parameters:**

Name	Description
isIntercept	Specifies whether to intercept the drag event. Value true means to intercept the drag event, and false means the opposite.

## SetInterval\(\) ``` virtual void OHOS::UIRepeatButton::SetInterval (uint16_t interval) ``` **Description:** Sets the interval between two consecutive click events. **Parameters:**

Name	Description
interval	Indicates the interval to set.

## SetItemHeight\(\) \[1/2\] ``` void OHOS::UITimePicker::SetItemHeight (int16_t height) ``` **Description:** Sets the height of each item in the time picker. **Parameters:**

Name	Description
height	Indicates the height of each item.

## SetItemHeight\(\) \[2/2\] ``` void OHOS::UIPicker::SetItemHeight (int16_t height) ``` **Description:** Sets the height of each item in the picker. **Parameters:**

Name	Description
height	Indicates the height to set.

## SetKnobStyle\(\) \[1/2\] ``` void OHOS::UISlider::SetKnobStyle (const [Style](OHOS-Style.md) & style) ``` **Description:** Sets the knob style. **Parameters:**

Name	Description
style	Indicates the knob style to set. For details, see Style.

**See also:** [GetKnobStyle](Graphic.md#gaecf92fe00a7565d034937e89fe2cf1e6) ## SetKnobStyle\(\) \[2/2\] ``` void OHOS::UISlider::SetKnobStyle (uint8_t key, int64_t value ) ``` **Description:** Sets a knob style. **Parameters:**

Name	Description
key	Indicates the key of the style to set.
value	Indicates the value matching the key.

## SetKnobWidth\(\) ``` void OHOS::UISlider::SetKnobWidth (int16_t width) ``` **Description:** Sets the width for this knob. The width of this knob is the same as its height. By default, the width of this knob is the same as the height of the horizontal slider or the width of the vertical slider. **Parameters:**

Name	Description
width	Indicates the knob width to set.

**See also:** [GetKnobWidth](Graphic.md#ga9bac904abdf8b097778fea5febc1ec00) ## SetLabelStyle\(\) \[1/2\] ``` void OHOS::UILabelButton::SetLabelStyle ([Style](OHOS-Style.md) & labelStyle) ``` **Description:** Sets the style for this label. **Parameters:**

Name	Description
labelStyle	Indicates the label style to set.

## SetLabelStyle\(\) \[2/2\] ``` void OHOS::UILabelButton::SetLabelStyle (uint8_t key, int64_t value ) ``` **Description:** Sets a style for this label. **Parameters:**

Name	Description
key	Indicates the key of the style to set.
value	Indicates the value matching the key.

## SetLablePosition\(\) ``` void OHOS::UILabelButton::SetLablePosition (int16_t x, int16_t y ) ``` **Description:** Sets the position for this label relative to the button holding it. **Parameters:**

Name	Description
x	Indicates the offset distance by which this label is moved on the x-axis.
y	Indicates the offset distance by which this label is moved on the y-axis.

## SetLastRun\(\) ``` void OHOS::Task::SetLastRun (uint32_t lastRun) ``` **Description:** Sets the end time for this task. **Parameters:**

Name	Description
lastRun	Indicates the end time to set.

## SetLayoutDirection\(\) ``` void OHOS::Layout::SetLayoutDirection (const [DirectionType](Codec.md#ga8ef30fa9c08e08c8706653571f9f5b81) & direction) ``` **Description:** Sets the layout direction. **Parameters:**

Name	Description
direction	Indicates the direction of the layout. Available values are as follows: LAYOUT_HOR: from left to right LAYOUT_HOR_R: from right to left LAYOUT_VER: from top to bottom LAYOUT_VER_R: from bottom to top

## SetLeft\(\) ``` void OHOS::Rect::SetLeft (int16_t left) ``` **Description:** Sets the coordinate of the left boundary of a rectangle. **Parameters:**

Name	Description
left	Indicates the coordinate of the left boundary.

## SetLineBreakMode\(\) \[1/2\] ``` void OHOS::UILabel::SetLineBreakMode (const uint8_t lineBreakMode) ``` **Description:** Sets the line break mode for this text. **Parameters:**

Name	Description
lineBreakMode	Indicates the line break mode to set.

## SetLineBreakMode\(\) \[2/2\] ``` void OHOS::TextAdapter::SetLineBreakMode (const uint8_t lineBreakMode) ``` **Description:** Sets the **LineBreakMode** attribute of [UILabel](OHOS-UILabel.md) constructed by the adapter. For details about the values of **LineBreakMode**, see **LINE\_BREAK\_ADAPT**, **LINE\_BREAK\_WRAP**, **LINE\_BREAK\_ELLIPSIS**, and **LINE\_BREAK\_MARQUEE**. **Parameters:**

Name	Description
lineBreakMode	Indicates the LineBreakMode of UILabel.

## SetLineColor\(\) \[1/3\] ``` void OHOS::UICircleProgress::SetLineColor ([ColorType](OHOS-Color32.md) color) ``` **Description:** Sets the foreground color for this progress bar. **Parameters:**

Name	Description
color	Indicates the foreground color to set. For details, see ColorType.

## SetLineColor\(\) \[2/3\] ``` void OHOS::UIAxis::SetLineColor (const [ColorType](OHOS-Color32.md) & color) ``` **Description:** Sets the line color of the coordinate axis. **Parameters:**

Name	Description
color	Indicates the line color to set. For details, see ColorType.

## SetLineColor\(\) \[3/3\] ``` void OHOS::UIChartDataSerial::SetLineColor (const [ColorType](OHOS-Color32.md) & color) ``` **Description:** Sets the polyline color of the data set in the line chart. This function applies only to line charts. **Parameters:**

Name	Description
color	Indicates the polyline color to set.

**See also:** [GetLineColor](Graphic.md#gaa35d69c841a74505735d1acb60476f13) ## SetLoopState\(\) \[1/3\] ``` void OHOS::UISwipeView::SetLoopState (bool loop) ``` **Description:** Sets whether the swipe view supports a cycle swipe. **Parameters:**

Name	Description
loop	Indicates the cycle swipe flag. true indicates the cycle swipe is supported, and false indicates the opposite case.

## SetLoopState\(\) \[2/3\] ``` void OHOS::UIPicker::SetLoopState (bool state) ``` **Description:** Sets whether a picker can slide cyclically. **Parameters:**

Name	Description
state	Specifies whether the picker can slide cyclically. Value true indicates that the picker can slide cyclically, and value false indicates that the picker cannot slide cyclically. The default value is false.

## SetLoopState\(\) \[3/3\] ``` void OHOS::UIList::SetLoopState (bool state) ``` **Description:** Sets the loop state for this list, in which a loop scroll is possible since the top and bottom of the list are connected together. **Parameters:**

Name	Description
state	Indicates the loop state to set.

## SetMajorAxisAlign\(\) ``` void OHOS::FlexLayout::SetMajorAxisAlign (const AlignType & align) ``` **Description:** Sets the alignment mode of the primary axis \(the axis where the layout direction is located\). The child views in the layout are placed in this mode in the direction of the primary axis. **Parameters:**

Name	Description
align	Indicates the alignment mode to set. The value can be ALIGN_START, ALIGN_END, ALIGN_CENTER, ALIGN_EVENLY, ALIGN_AROUND, or ALIGN_BETWEEN.

## SetMarkNum\(\) \[1/3\] ``` void OHOS::UIXAxis::SetMarkNum (uint16_t count) ``` **Description:** Sets the number of scales on the x-axis. For a bar chart, the number of scales must be the same as that of bars so that each bar can be properly displayed between two scales. Implements [OHOS::UIAxis](Graphic.md#gaebe68b636d2147f2e69bd658696dc4ee). **Parameters:**

Name	Description
count	Indicates the number of scales to set. The default value is 5.

## SetMarkNum\(\) \[2/3\] ``` void OHOS::UIYAxis::SetMarkNum (uint16_t count) ``` **Description:** Sets the number of scales on the Y axis. Implements [OHOS::UIAxis](Graphic.md#gaebe68b636d2147f2e69bd658696dc4ee). **Parameters:**

Name	Description
count	Indicates the number of scales to set. The default value is 5.

## SetMarkNum\(\) \[3/3\] ``` virtual void OHOS::UIAxis::SetMarkNum (uint16_t count) ``` **Description:** Sets the number of scales on a coordinate axis. For a bar chart, the number of scales must be the same as that of bars so that each bar can be properly displayed between two scales. Implemented in [OHOS::UIYAxis](Graphic.md#gaf67c1b25c1d1a3ba694cb47f7e9fda85), and [OHOS::UIXAxis](Graphic.md#ga46f4151f1379809749ab2ba364d55170). **Parameters:**

Name	Description
count	Indicates the number of scales to set. The default value is 5.

## SetMaxDataCount\(\) ``` bool OHOS::UIChartDataSerial::SetMaxDataCount (uint16_t maxCount) ``` **Description:** Sets the maximum number of data points that can be stored in a data set. This function must be called before data is added, deleted, or modified. Otherwise, data operations will fail. **Parameters:**

Name	Description
maxCount	Indicates the number of data points. The default value is 0.

**Returns:** Returns **true** if the operation is successful; returns **false** otherwise. ## SetMaxScrollDistance\(\) ``` void OHOS::UIAbstractScroll::SetMaxScrollDistance (uint16_t distance) ``` **Description:** Sets the maximum scroll distance after a finger lifts the screen. **Parameters:**

Name	Description
distance	Indicates the maximum scroll distance to set. The default value is 0, indicating that the scroll distance is not limited.

## SetName\(\) ``` void OHOS::UIRadioButton::SetName (const char * name) ``` **Description:** Sets the name for this radio button. **Parameters:**

Name	Description
name	Indicates the name to set, which is a character string.

## SetNextSibling\(\) ``` void OHOS::UIView::SetNextSibling ([UIView](OHOS-UIView.md) * sibling) ``` **Description:** Sets the next sibling view for the view. **Parameters:**

Name	Description
sibling	Indicates the pointer to the next sibling view to set.

## SetOnChangeListener\(\) ``` void OHOS::UICheckBox::SetOnChangeListener ([OnChangeListener](OHOS-UICheckBox-OnChangeListener.md) * onStateChangeListener) ``` **Description:** Sets the listener for this check box. The listener is triggered to invoke the callback function upon click events. **Parameters:**

Name	Description
listener	Indicates the listener to set. For details, see OnChangeListener.

## SetOnClickListener\(\) \[1/2\] ``` void OHOS::UIView::SetOnClickListener ([OnClickListener](OHOS-UIView-OnClickListener.md) * onClickListener) ``` **Description:** Sets a click event listener for the view. **Parameters:**

Name	Description
onClickListener	Indicates the pointer to the click event listener to set.

## SetOnClickListener\(\) \[2/2\] ``` void OHOS::TextAdapter::SetOnClickListener ([UIView::OnClickListener](OHOS-UIView-OnClickListener.md) * clickListener) ``` **Description:** Sets the callback function to be invoked upon a click event. **Parameters:**

Name	Description
clickListener	Indicates the pointer to the callback function.

## SetOnDragListener\(\) ``` void OHOS::UIView::SetOnDragListener ([OnDragListener](OHOS-UIView-OnDragListener.md) * onDragListener) ``` **Description:** Sets a drag event listener for the view. **Parameters:**

Name	Description
onDragListener	Indicates the pointer to the drag event listener to set.

## SetOnKeyActListener\(\) ``` void OHOS::RootView::SetOnKeyActListener ([OnKeyActListener](OHOS-RootView-OnKeyActListener.md) * onKeyActListener) ``` **Description:** Sets the listener that contains a callback to be invoked upon a physical key event. **Parameters:**

Name	Description
onKeyActListener	Indicates the pointer to the listener to set.

## SetOnLongPressListener\(\) ``` void OHOS::UIView::SetOnLongPressListener ([OnLongPressListener](OHOS-UIView-OnLongPressListener.md) * onLongPressListener) ``` **Description:** Sets a long-press event listener for the view. **Parameters:**

Name	Description
onLongPressListener	Indicates the pointer to the long-press event listener to set.

## SetOnSwipeListener\(\) ``` void OHOS::UISwipeView::SetOnSwipeListener ([OnSwipeListener](OHOS-UISwipeView-OnSwipeListener.md) * onSwipeListener) ``` **Description:** Sets the listener that contains a callback to be invoked upon a swipe event. **Parameters:**

Name	Description
onSwipeListener	Indicates the listener to set.

## SetOnTouchListener\(\) ``` void OHOS::UIView::SetOnTouchListener ([OnTouchListener](OHOS-UIView-OnTouchListener.md) * onTouchListener) ``` **Description:** Sets a touch event listener for the view. **Parameters:**

Name	Description
onTouchListener	Indicates the pointer to the touch event listener to set.

## SetOnVirtualDeviceEventListener\(\) ``` void OHOS::RootView::SetOnVirtualDeviceEventListener ([OnVirtualDeviceEventListener](OHOS-RootView-OnVirtualDeviceEventListener.md) * onVirtualDeviceEventListener) ``` **Description:** Sets a listener for monitoring the input events of a virtual device. **Parameters:**

Name	Description
onVirtualDeviceEventListener	Indicates the pointer to the listener to set.

## SetOpacity\(\) \[1/2\] ``` void OHOS::UIDigitalClock::SetOpacity (uint8_t opacity) ``` **Description:** Sets the opacity for this digital clock. **Parameters:**

Name	Description
opacity	Indicates the opacity of this digital clock. The value ranges from 0 (transparency) to 255 (opacity).

## SetOpacity\(\) \[2/2\] ``` void OHOS::Paint::SetOpacity (uint8_t opacity) ``` **Description:** Sets the opacity. The setting takes effect for the entire graph, including the border, line color, and fill color. **Parameters:**

Name	Description
opacity	Indicates the opacity. The value range is [0, 255].

**See also:** [GetOpacity](Graphic.md#ga3a47fccd734ec0e79af89bedacdd4357) ## SetParent\(\) ``` void OHOS::UIView::SetParent ([UIView](OHOS-UIView.md) * parent) ``` **Description:** Sets the parent view for the view. **Parameters:**

Name	Description
parent	Indicates the pointer to the parent view to set.

## SetPeriod\(\) ``` void OHOS::Task::SetPeriod (uint32_t period) ``` **Description:** Sets the running period for this task. **Parameters:**

Name	Description
period	Indicates the running period to set.

## SetPivot\(\) ``` void OHOS::UITextureMapper::SetPivot (int16_t x, int16_t y ) ``` **Description:** Sets the coordinates of the rotation and scaling pivots for this image. The coordinates represent the position relative to this image. For example, setting the x-coordinate and y-coordinate of the rotation or scaling center to the half of the image width and height respectively means the rotation or scaling is going to be performed around the center of this image. **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.
y	Indicates the y-coordinate to set.

## SetPolygon\(\) ``` void OHOS::TransformMap::SetPolygon (const [Polygon](OHOS-Polygon.md) & polygon) ``` **Description:** Sets a polygon after rectangle transformation. **Parameters:**

Name	Description
polygon	Indicates the polygon to set.

## SetPosition\(\) \[1/7\] ``` void OHOS::Rect::SetPosition (int16_t x, int16_t y ) ``` **Description:** Changes the coordinates of the left and top boundaries of the rectangle without changing the rectangle width and height. **Parameters:**

Name	Description
x	Indicates the coordinate of the left boundary.
y	Indicates the coordinate of the top boundary.

## SetPosition\(\) \[2/7\] ``` virtual void OHOS::UIView::SetPosition (int16_t x, int16_t y ) ``` **Description:** Sets the position for the view. Reimplemented in [OHOS::UIAnalogClock](Graphic.md#ga01d3098090d17bdd720df6e861784e13), and [OHOS::UISurfaceView](Graphic.md#ga5d9af67ba074697876ff97f8ece305b7). **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.
y	Indicates the y-coordinate to set.

## SetPosition\(\) \[3/7\] ``` void OHOS::UISurfaceView::SetPosition (int16_t x, int16_t y ) ``` **Description:** Sets the position for this view. Reimplemented from [OHOS::UIView](Graphic.md#gab34233f6aeae330b025969137d03e67a). **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.
y	Indicates the y-coordinate to set.

## SetPosition\(\) \[4/7\] ``` void OHOS::UIAnalogClock::SetPosition (int16_t x, int16_t y ) ``` **Description:** Sets the position for this analog clock. Reimplemented from [OHOS::UIView](Graphic.md#gab34233f6aeae330b025969137d03e67a). **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.
y	Indicates the y-coordinate to set.

## SetPosition\(\) \[5/7\] ``` virtual void OHOS::UIView::SetPosition (int16_t x, int16_t y, int16_t width, int16_t height ) ``` **Description:** Adjusts the position and size of the view. Reimplemented in [OHOS::UIAnalogClock](Graphic.md#gaa7fad079e41c8efd137781350b60687b), and [OHOS::UISurfaceView](Graphic.md#ga4a505b3b207653c60161d90750f88a9d). **Parameters:**

Name	Description
x	Indicates the new x-coordinate.
y	Indicates the new y-coordinate.
width	Indicates the new width.
height	Indicates the new height.

## SetPosition\(\) \[6/7\] ``` void OHOS::UISurfaceView::SetPosition (int16_t x, int16_t y, int16_t width, int16_t height ) ``` **Description:** Sets the position and size for this view. Reimplemented from [OHOS::UIView](Graphic.md#gaf8ce4c009f23b7175b2b34bac4a74262). **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.
y	Indicates the y-coordinate to set.
width	Indicates the width to set.
height	Indicates the height to set.

## SetPosition\(\) \[7/7\] ``` void OHOS::UIAnalogClock::SetPosition (int16_t x, int16_t y, int16_t width, int16_t height ) ``` **Description:** Sets the position and size for this analog clock. Reimplemented from [OHOS::UIView](Graphic.md#gaf8ce4c009f23b7175b2b34bac4a74262). **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.
y	Indicates the y-coordinate to set.
width	Indicates the width to set.
height	Indicates the height to set.

## SetPreLastPoint\(\) ``` void OHOS::DragEvent::SetPreLastPoint (const [Point](OHOS-Point.md) & preLastPos) ``` **Description:** Sets the coordinates of the stay position before the last position in the drag event. **Parameters:**

Name	Description
preLastPos	Indicates the coordinates of the stay position to set.

## SetProgressImagePosition\(\) ``` void OHOS::UICircleProgress::SetProgressImagePosition (int16_t x, int16_t y ) ``` **Description:** Sets the coordinates of the foreground image for this progress bar relative to the view. **Parameters:**

Name	Description
x	Indicates the x-coordinate to set. The default value is 0.
y	Indicates the y-coordinate to set. The default value is 0.

**See also:** [SetBackgroundImagePosition](Graphic.md#ga66b95a4793bc60596a56be00849b8296) ## SetRadius\(\) ``` void OHOS::UICircleProgress::SetRadius (uint16_t radius) ``` **Description:** Sets the outer radius for this circular progress bar. **Parameters:**

Name	Description
radius	Indicates the outer radius to set.

**See also:** [GetRadius](Graphic.md#gabb2869e683ccd799891a8869613ec8c7) ## SetRange\(\) ``` void OHOS::UIAbstractProgress::SetRange (int16_t rangeMax, int16_t rangeMin ) ``` **Description:** Sets the range for this progress bar. **rangeMin** and **rangeMax** can be any value represented by **int16\_t**. **rangeMax** must be greater than or equal to **rangeMin**. Otherwise, the setting does not take effect and the original value is used. **Parameters:**

Name	Description
rangeMax	Indicates the maximum value of this progress bar. The default value is 100.
rangeMin	Indicates the minimum value of this progress bar. The default value is 0.

**See also:** [GetRangeMin](Graphic.md#ga68ab733afcf4224a799ccad2092d1d23) | [GetRangeMax](Graphic.md#ga1840199f22d5d3e4ef58e41ac8f4febc) ## SetReboundSize\(\) ``` void OHOS::UIAbstractScroll::SetReboundSize (uint16_t size) ``` **Description:** Sets the rebound size, which is the distance a knob moves after being released when it reaches the end of a scrollbar. **Parameters:**

Name	Description
size	Indicates the rebound size to set.

## SetRect\(\) ``` void OHOS::Rect::SetRect (int16_t left, int16_t top, int16_t right, int16_t bottom ) ``` **Description:** Sets the coordinates of the four boundaries of a rectangle. **Parameters:**

Name	Description
left	Indicates the coordinate of the left boundary.
top	Indicates the coordinate of the top boundary.
right	Indicates the coordinate of the right boundary.
bottom	Indicates the coordinate of the bottom boundary.

## SetRepeat\(\) ``` void OHOS::UIImageAnimatorView::SetRepeat (bool repeat) ``` **Description:** Sets whether to play this animator for infinite times. **Parameters:**

Name	Description
repeat	Specifies whether the animator is played for infinite times. true (default value) indicates the animator is played for infinite times, and false indicates the animator is played a specified number of times.

**See also:** [IsRepeat](Graphic.md#ga5e3700fe3d572ed6329237480bd4b5d2) ## SetRepeatTimes\(\) ``` void OHOS::UIImageAnimatorView::SetRepeatTimes (uint32_t times) ``` **Description:** Sets the playback times for this animator. This function takes effect only when **repeat** is set to **false** in [SetRepeat](Graphic.md#ga0368d596c01e1a6093d7476fce548a38). **Parameters:**

Name	Description
times	Indicates the playback times to set. The default value is 1.

**See also:** [GetRepeatTimes](Graphic.md#gae900ab627983fb255dc0d1672c1f3a03) ## SetReverse\(\) ``` void OHOS::UIImageAnimatorView::SetReverse (bool reverse) ``` **Description:** Sets the playback sequence for this animator. **Parameters:**

Name	Description
reverse	Indicates the playback sequence to set. true indicates a reverse playback and false (default value) indicates a forward playback.

**See also:** [IsReverse](Graphic.md#ga35b508048046b7adf938de5cc4004724) ## SetRight\(\) ``` void OHOS::Rect::SetRight (int16_t right) ``` **Description:** Sets the coordinate of the right boundary of a rectangle. **Parameters:**

Name	Description
right	Indicates the coordinate of the right boundary.

## SetRollSpeed\(\) ``` void OHOS::UILabel::SetRollSpeed (uint16_t speed) ``` **Description:** Sets the scroll speed for this text. **Parameters:**

Name	Description
speed	Indicates the scroll speed to set.

## SetRollStartPos\(\) ``` void OHOS::UILabel::SetRollStartPos (int16_t pos) ``` **Description:** Sets the position where this text starts to roll. **Parameters:**

Name	Description
pos	Indicates the position to set.

## SetRotateEnd\(\) ``` void OHOS::UITextureMapper::SetRotateEnd (int16_t end) ``` **Description:** Sets the end angle of rotation for this image. **Parameters:**

Name	Description
end	Indicates the end angle of rotation to set. The default value is 0.

## SetRotateStart\(\) ``` void OHOS::UITextureMapper::SetRotateStart (int16_t start) ``` **Description:** Sets the start angle of rotation for this image. By default, the image starts to rotate from the current angle of this stopped animator. **Parameters:**

Name	Description
start	Indicates the start angle to set. The default value is 0.

## SetRows\(\) ``` void OHOS::GridLayout::SetRows (const uint16_t & rows) ``` **Description:** Sets the number of rows in a grid. **Parameters:**

Name	Description
rows	Indicates the number of rows to set.

## SetRunTime\(\) ``` void OHOS::Animator::SetRunTime (uint32_t runTime) ``` **Description:** Sets the running time for this animator. **Parameters:**

Name	Description
runTime	Indicates the running time to set, in milliseconds.

**See also:** [GetRunTime](Graphic.md#ga18a8b8b9ceb344e6660a5c0de5a9ce1f) ## SetScaleEnd\(\) ``` void OHOS::UITextureMapper::SetScaleEnd (float end) ``` **Description:** Sets the end ratio for scaling this image. **Parameters:**

Name	Description
end	Indicates the end ratio to set. The default value is 1.

## SetScaleStart\(\) ``` void OHOS::UITextureMapper::SetScaleStart (float start) ``` **Description:** Sets the start ratio for scaling this image. By default, the image starts to scale from the current ratio of this stopped animator. The X and Y directions are scaled at the same ratio. Single-direction scaling is not supported. **Parameters:**

Name	Description
start	Indicates the start ratio to set. The default value is 1.

## SetScrollbarWidth\(\) ``` void OHOS::UIScrollView::SetScrollbarWidth (uint8_t width) ``` **Description:** Sets the width for this scroll bar. **Parameters:**

Name	Description
width	Indicates the width to set. The default value is DEFAULT_BAR_WIDTH.

## SetScrollBlankSize\(\) ``` void OHOS::UIAbstractScroll::SetScrollBlankSize (uint16_t size) ``` **Description:** Sets the blank size for this scroll view. **Parameters:**

Name	Description
value	Indicates the blank size to set. The default value is 0. Taking a vertical scroll as an example, the value 0 indicates that the head node can only scroll downwards the top of the view and the tail node scroll upwards the bottom; the value 10 indicates that the head node can continue scrolling down by 10 pixels after it reaches the top of the view.

## SetScrollStateListener\(\) ``` void OHOS::UIList::SetScrollStateListener ([ListScrollListener](OHOS-ListScrollListener.md) * scrollListener) ``` **Description:** Sets the listener that contains a callback to be invoked when a child view is selected as this list scrolls. **Parameters:**

Name	Description
scrollListener	Indicates the listener to set.

## SetSecondaryAxisAlign\(\) ``` void OHOS::FlexLayout::SetSecondaryAxisAlign (const AlignType & align) ``` **Description:** Sets the alignment mode of the secondary axis \(the axis perpendicular to the set layout direction\). **Parameters:**

Name	Description
align	Indicates the alignment mode to set. The value can be ALIGN_START, ALIGN_CENTER, or ALIGN_END.

## SetSelected\(\) \[1/2\] ``` bool OHOS::UITimePicker::SetSelected (const char * value) ``` **Description:** Sets the time currently selected in the time picker. **Parameters:**

Name	Description
value	Indicates the pointer to the selected time, which is in the format of "hour:minute:second", for example, 10:12:50. The second is optional and depends on the setting of EnableSecond. The time must be a valid value. For example, the hour value must range from 0 to 23.

**Returns:** Returns **true** if the setting is successful; returns **false** otherwise. ## SetSelected\(\) \[2/2\] ``` bool OHOS::UIPicker::SetSelected (uint16_t index) ``` **Description:** Sets the index of the item currently selected in the picker. **Parameters:**

Name	Description
index	Indicates the index to set.

**Returns:** Returns **true** if the setting is successful; returns **false** otherwise. ## SetSelectPosition\(\) ``` void OHOS::UIList::SetSelectPosition (uint16_t position) ``` **Description:** Sets the position where a child view is selected as this list scrolls. When a child view is selected at the specified position, the callback [ListScrollListener](OHOS-ListScrollListener.md) is invoked. You can implement the zoom-in and color-change effects in the callback. **Parameters:**

Name	Description
position	Indicates the position to set. The default value is 0, indicating that no position is set.

## SetSizeFixed\(\) ``` void OHOS::UIImageAnimatorView::SetSizeFixed (bool fixed) ``` **Description:** Sets whether the image size is fixed to the view size. **Parameters:**

Name	Description
fixed	Specifies whether the image size is fixed to the view size. The value true indicates the size of the image is the same as that of the view, and false indicates the position and size of this image need to be set in the ImageAnimatorInfo structure.

**See also:** [IsSizeFixed](Graphic.md#gabf4bad201ee9ef8aa484677b1daa3ba4) ## SetSliderColor\(\) ``` void OHOS::UISlider::SetSliderColor (const [ColorType](OHOS-Color32.md) backgroundColor, const [ColorType](OHOS-Color32.md) foregroundColor, const [ColorType](OHOS-Color32.md) knobColor ) ``` **Description:** Sets the colors for this slider, including the background, foreground, and knob colors. **Parameters:**

Name	Description
backgroundColor	Indicates the background color to set.
foregroundColor	Indicates the foreground color to set.
knobColor	Indicates the knob color to set.

## SetSliderEventListener\(\) ``` void OHOS::UISlider::SetSliderEventListener ([UISliderEventListener](OHOS-UISlider-UISliderEventListener.md) * listener) ``` **Description:** Sets the listener for a slider change. When a user drags or clicks the slider, listening is triggered and the **OnChange** callback is invoked. When a user releases the slider, the **OnRelease** callback is invoked. **Parameters:**

Name	Description
listener	Indicates the listener to set. For details, see UISliderEventListener.

## SetSliderRadius\(\) ``` void OHOS::UISlider::SetSliderRadius (int16_t backgroundRadius, int16_t foregroundRadius, int16_t knobRadius ) ``` **Description:** Sets the corner radiuses for this slider, including the background, foreground, and knob corner radiuses. **Parameters:**

Name	Description
backgroundRadius	Indicates the background corner radius to set.
foregroundRadius	Indicates the foreground corner radius to set.
knobRadius	Indicates the knob corner radius to set.

## SetSrc\(\) \[1/4\] ``` bool OHOS::Image::SetSrc (const char * src) ``` **Description:** Sets the image path. **Parameters:**

Name	Description
src	Indicates the pointer to image path in the format of ..\xxx\xxx\xxx.bin.

**Returns:** Returns **true** if the operation is successful; returns **false** if the operation fails. ## SetSrc\(\) \[2/4\] ``` void OHOS::UIImageView::SetSrc (const char * src) ``` **Description:** Sets the image path. **Parameters:**

Name	Description
src	Indicates the pointer to the image path represented by a string.

## SetSrc\(\) \[3/4\] ``` bool OHOS::Image::SetSrc (const [ImageInfo](OHOS-ImageInfo.md) * src) ``` **Description:** Sets the image information. **Parameters:**

Name	Description
src	Indicates the pointer to the image information.

**Returns:** Returns **true** if the operation is successful; returns **false** if the operation fails. ## SetSrc\(\) \[4/4\] ``` void OHOS::UIImageView::SetSrc (const [ImageInfo](OHOS-ImageInfo.md) * src) ``` **Description:** Sets the image information. **Parameters:**

Name	Description
src	Indicates the pointer to the image information. For details, see ImageInfo.

## SetStartAngle\(\) ``` void OHOS::UICircleProgress::SetStartAngle (int16_t startAngle) ``` **Description:** Sets the start angle. The 12-clock direction is 0 degrees, and the 3-clock direction is 90 degrees. If the start angle is smaller than the end angle, the progress bar is clockwise. Otherwise, the progress bar is anticlockwise. The maximum range of a progress bar is a circle. If the difference between the start angle and end angle exceeds 360 degrees, a circular progress bar is created. **Parameters:**

Name	Description
startAngle	Indicates the start angle to set, which can be any value represented by int16_t. The default value is 0.

**See also:** [GetStartAngle](Graphic.md#ga37a3e63da7a8658e48a25ae9ec73abea) | [SetEndAngle](Graphic.md#ga831186bf208f8236b006b13cc122c82c) ## SetStartIndex\(\) ``` void OHOS::UIList::SetStartIndex (uint16_t index) ``` **Description:** Sets the start index for this list. **Parameters:**

Name	Description
index	Indicates the start index to set. The default value is 0.

## SetStartPosition\(\) ``` void OHOS::UICanvas::SetStartPosition (const [Point](OHOS-Point.md) & startPoint) ``` **Description:** Sets the coordinates of the start point for drawing a line. For example, if **startPoint** is set to \{50, 50\}, the line is drawn from this set of coordinates on the canvas. **Parameters:**

Name	Description
startPoint	Indicates the coordinates of the start point.

**See also:** [GetStartPosition](Graphic.md#gad23f7db18bfa5f91e3cb814193e6932d) ## SetState\(\) \[1/3\] ``` void OHOS::UIToggleButton::SetState (bool state) ``` **Description:** Sets the state for this toggle button. **Parameters:**

Name	Description
state	Indicates the state of this toggle button. The value true indicates the image displayed for On, and false indicates the image displayed for Off. If this function is not called, the image is displayed for Off.

## SetState\(\) \[2/3\] ``` void OHOS::UICheckBox::SetState ([UICheckBoxState](Graphic.md#ga15a3f0302aded0e4d1584ddc6002335d) state) ``` **Description:** Sets the state for this check box. **Parameters:**

Name	Description
state	Indicates the state of this check box. For details, see UICheckBoxState.

## SetState\(\) \[3/3\] ``` void OHOS::Animator::SetState (uint8_t state) ``` **Description:** Sets the current state for this animator. **Parameters:**

Name	Description
state	Indicates the current animator state to set, which can be STOP, START, or PAUSE.

**See also:** [GetState](Graphic.md#gafd0166df63bed582022ed93175dd3179) ## SetStateForStyle\(\) ``` void OHOS::UIButton::SetStateForStyle ([ButtonState](Graphic.md#ga188dd55c17ee44be27fa80543f13f729) state) ``` **Description:** Sets the state for a button. After the setting, calling [SetStyle](Graphic.md#gaa5fdd9b28b8c919dbde0e34d8ae38caf) will change the style of this button, but not its state. **Parameters:**

Name	Description
state	Indicates the button state, as enumerated in ButtonState.

## SetStep\(\) ``` void OHOS::UIAbstractProgress::SetStep (uint16_t step) ``` **Description:** Sets the step for this progress bar. The step is used to control the update frequency of the progress bar. When the value change exceeds the step, the progress bar is redrawn. For example, when the step is set to 10 and the current progress value is 5, the progress bar will not be redrawn if the progress value becomes 14, but will be redrawn if the progress value becomes 15. In addition, when its current value changes to be the maximum or minimum value, the progress bar is redrawn regardless of the step you set. **Parameters:**

Name	Description
step	Indicates the step to set. The default value is 1.

**See also:** [GetStep](Graphic.md#ga9c1678604605a54c2e338d283c46866d) ## SetStrokeColor\(\) ``` void OHOS::Paint::SetStrokeColor ([ColorType](OHOS-Color32.md) color) ``` **Description:** Sets the color of a line or border. **Parameters:**

Name	Description
color	Indicates the line color when a line is drawn or the border color when a closed graph is drawn.

**See also:** [GetStrokeColor](Graphic.md#gaf9dba05cf9c9f91853a523d961e76fb1) ## SetStrokeWidth\(\) ``` void OHOS::Paint::SetStrokeWidth (uint16_t width) ``` **Description:** Sets the width of a line or border. **Parameters:**

Name	Description
width	Indicates the line width when a line is drawn or the border width when a closed graph is drawn. The width is extended to both sides.

**See also:** [GetStrokeWidth](Graphic.md#gaf8420a460f4a21c9208674e07893c3f0) ## SetStyle\(\) \[1/5\] ``` void OHOS::Paint::SetStyle ([PaintStyle](Graphic.md#ga548320a469b7862fa416af062cad5d7a) style) ``` **Description:** Sets the paint style of a closed graph. **Parameters:**

Name	Description
style	Indicates the paint style. Stroke and fill are set by default. For details, see PaintStyle.

**See also:** [GetStyle](Graphic.md#ga18429dcf1a0dfbe0bf3e5718efa65128) ## SetStyle\(\) \[2/5\] ``` virtual void OHOS::UIView::SetStyle ([Style](OHOS-Style.md) & style) ``` **Description:** Sets the view style. **Parameters:**

Name	Description
style	Indicates the view style.

## SetStyle\(\) \[3/5\] ``` void OHOS::Style::SetStyle (uint8_t key, int64_t value ) ``` **Description:** Sets a style. **Parameters:**

Name	Description
key	Indicates the key of the style to set.
value	Indicates the value matching the key.

## SetStyle\(\) \[4/5\] ``` virtual void OHOS::UIView::SetStyle (uint8_t key, int64_t value ) ``` **Description:** Sets a style. Reimplemented in [OHOS::UIButton](Graphic.md#gaa5fdd9b28b8c919dbde0e34d8ae38caf). **Parameters:**

Name	Description
key	Indicates the key of the style to set.
value	Indicates the value matching the key.

## SetStyle\(\) \[5/5\] ``` void OHOS::UIButton::SetStyle (uint8_t key, int64_t value ) ``` **Description:** Sets a style. Reimplemented from [OHOS::UIView](Graphic.md#ga0945c2f05815dc2e466ef9ceaca2f700). **Parameters:**

Name	Description
key	Indicates the key of the style to set.
value	Indicates the value matching the key.

## SetStyleForState\(\) ``` void OHOS::UIButton::SetStyleForState (uint8_t key, int64_t value, [ButtonState](Graphic.md#ga188dd55c17ee44be27fa80543f13f729) state ) ``` **Description:** Sets the style for a button in a specific state. **Parameters:**

Name	Description
key	Indicates the key of the style to set.
value	Indicates the value matching the key.
state	Indicates the button state, as enumerated in ButtonState.

## SetSwipeACCLevel\(\) ``` void OHOS::UIAbstractScroll::SetSwipeACCLevel (uint16_t value) ``` **Description:** Sets the compensation distance after a finger lifts the screen. **Parameters:**

Name	Description
value	Indicates the compensation distance to set. The default value is 0.

## SetText\(\) \[1/5\] ``` void OHOS::UILabelButton::SetText (const char * text) ``` **Description:** Sets the text for this label button. **Parameters:**

Name	Description
text	Indicates the pointer to the text.

## SetText\(\) \[2/5\] ``` void OHOS::Text::SetText (const char * text) ``` **Description:** Sets the content for this text. **Parameters:**

Name	Description
text	Indicates the pointer to the text content.

## SetText\(\) \[3/5\] ``` void OHOS::UIDialog::SetText (const char * text) ``` **Description:** Sets the text for this dialog box. **Parameters:**

Name	Description
text	Indicates the pointer to the text.

## SetText\(\) \[4/5\] ``` void OHOS::UIArcLabel::SetText (const char * text) ``` **Description:** Sets the text content for this arc label. **Parameters:**

Name	Description
text	Indicates the pointer to the text content.

## SetText\(\) \[5/5\] ``` void OHOS::UILabel::SetText (const char * text) ``` **Description:** Sets the text content for this label. **Parameters:**

Name	Description
text	Indicates the pointer to the text content.

## SetTextColor\(\) \[1/3\] ``` void OHOS::UIPicker::SetTextColor ([ColorType](OHOS-Color32.md) backgroundColor, [ColorType](OHOS-Color32.md) highlightColor ) ``` **Description:** Sets the text color. **Parameters:**

Name	Description
backgroundColor	Indicates the color of the background text.
highlightColor	Indicates the color of the highlighted text.

## SetTextColor\(\) \[2/3\] ``` void OHOS::UILabel::SetTextColor ([ColorType](OHOS-Color32.md) color) ``` **Description:** Sets the color for this text. **Parameters:**

Name	Description
color	Indicates the text color to set.

## SetTextColor\(\) \[3/3\] ``` void OHOS::UILabelButton::SetTextColor ([ColorType](OHOS-Color32.md) color) ``` **Description:** Sets the color for this text. **Parameters:**

Name	Description
color	Indicates the text color to set.

## SetTextFormatter\(\) \[1/2\] ``` void OHOS::TextAdapter::SetTextFormatter ([TextFormatter](OHOS-TextFormatter.md) * formatter) ``` **Description:** Sets the text formatter. **Parameters:**

Name	Description
formatter	Indicates the pointer to the text formatter. For details, see TextFormatter.

## SetTextFormatter\(\) \[2/2\] ``` void OHOS::UIPicker::SetTextFormatter ([TextFormatter](OHOS-TextFormatter.md) * formatter) ``` **Description:** Sets the text formatter. **Parameters:**

Name	Description
formatter	Indicates the pointer to the text formatter. For details, see TextFormatter.

## SetTextRotation\(\) \[1/2\] ``` void OHOS::Text::SetTextRotation (LabelRotateDegree angle) ``` **Description:** Sets the clockwise rotation angle for this text. **Parameters:**

Name	Description
angle	Indicates the rotation angle to set. The value can be DEGREE_0, DEGREE_90, DEGREE_180, or DEGREE_270, as defined in LabelRotateDegree.

## SetTextRotation\(\) \[2/2\] ``` void OHOS::UILabel::SetTextRotation (LabelRotateDegree angle) ``` **Description:** Sets the clockwise rotation angle for this text. **Parameters:**

Name	Description
angle	Indicates the rotation angle to set. The value can be DEGREE_0, DEGREE_90, DEGREE_180, or DEGREE_270, as defined in LabelRotateDegree.

## SetTextStyle\(\) ``` void OHOS::UITimePicker::SetTextStyle (uint8_t backgroundFontId, uint8_t highlightFontId, [ColorType](OHOS-Color32.md) backgroundColor, [ColorType](OHOS-Color32.md) highlightColor ) ``` **Description:** Sets the text format in the time picker, including the font ID and color. **Parameters:**

Name	Description
backgroundFontId	Indicates the font ID of the background text.
highlightFontId	Indicates the font ID of the highlighted text.
backgroundColor	Indicates the color of the background text.
highlightColor	Indicates the color of the highlighted text.

## SetThrowDrag\(\) ``` void OHOS::UIAbstractScroll::SetThrowDrag (bool throwDrag) ``` **Description:** Sets whether to continue scrolling after a finger lifts the screen. **Parameters:**

Name	Description
throwDrag	Specifies whether to continue scrolling after a finger lifts the screen. true indicates the scroll continues, and false indicates the scroll stops immediately after a finger lifts.

## SetTime\(\) ``` void OHOS::Animator::SetTime (uint32_t time) ``` **Description:** Sets the total duration for this animator. **Parameters:**

Name	Description
time	Indicates the total duration to set, in milliseconds.

**See also:** [GetTime](Graphic.md#gac05ba70bafa9887dc23ea4ba69da632d) ## SetTime12Hour\(\) ``` void OHOS::UIAbstractClock::SetTime12Hour (uint8_t hour, uint8_t minute, uint8_t second, bool am ) ``` **Description:** Sets the time in 12-hour format. **Parameters:**

Name	Description
hour	Indicates the hour to set, within [0, 11] after the modulo operation.
minute	Indicates the minute to set, within [0, 59] after the modulo operation.
second	Indicates the second to set, within [0, 59] after the modulo operation.
am	Specifies whether it is in the morning. true indicates that it is in the morning, and false indicates that it is in the afternoon.

## SetTime24Hour\(\) ``` void OHOS::UIAbstractClock::SetTime24Hour (uint8_t hour, uint8_t minute, uint8_t second ) ``` **Description:** Sets the time in 24-hour format. **Parameters:**

Name	Description
hour	Indicates the hour to set, within [0, 23] after the modulo operation.
minute	Indicates the minute to set, within [0, 59] after the modulo operation.
second	Indicates the second to set, within [0, 59] after the modulo operation.

## SetTimeOfPause\(\) ``` void OHOS::UIImageAnimatorView::SetTimeOfPause (uint16_t timeOfPause) ``` **Description:** Sets the interval between two playbacks of an infinitely repeated animator. **Parameters:**

Name	Description
timeOfPause	Indicates the interval between two playbacks of an infinitely repeated animator, in milliseconds. The default value is 0, indicating that there is no interval.

**See also:** [GetTimeOfPause](Graphic.md#ga8bd6ba744209193fd1f3e630e6cf1c5a) ## SetTimeOfUpdate\(\) ``` void OHOS::UIImageAnimatorView::SetTimeOfUpdate (uint16_t timeOfUpdate) ``` **Description:** Sets the speed for this animator. **Parameters:**

Name	Description
timeOfUpdate	Indicates the interval for updating images, in milliseconds. The default value is 1.

**See also:** [GetTimeOfUpdate](Graphic.md#ga24411b0b4d9f619532aa879ee6ee7af1) ## SetTimeStamp\(\) ``` void OHOS::Event::SetTimeStamp (const TimeType & timeStamp) ``` **Description:** Sets the timestamp when an event occurs. **Parameters:**

Name	Description
timeStamp	Indicates the timestamp of the event to set.

## SetTitle\(\) ``` void OHOS::UIDialog::SetTitle (const char * title) ``` **Description:** Sets the title for this dialog box. **Parameters:**

Name	Description
title	Indicates the pointer to the title.

## SetTop\(\) ``` void OHOS::Rect::SetTop (int16_t top) ``` **Description:** Sets the coordinate of the top boundary of a rectangle. **Parameters:**

Name	Description
top	Indicates the coordinate of the top boundary.

## SetTopPointStyle\(\) ``` void OHOS::UIChartDataSerial::SetTopPointStyle (const [PointStyle](OHOS-UIChartDataSerial-PointStyle.md) & style) ``` **Description:** Sets the style of the top point of a polyline. **Parameters:**

Name	Description
style	Indicates the style to set. For details, see PointStyle.

## SetTouchable\(\) ``` void OHOS::UIView::SetTouchable (bool touch) ``` **Description:** Sets whether the view is touchable. **Parameters:**

Name	Description
touchable	Specifies whether to set the view touchable. Value true means to set the view touchable, and false means the opposite.

## SetTransformAlgorithm\(\) ``` void OHOS::UIImageView::SetTransformAlgorithm (TransformAlgorithm algorithm) ``` **Description:** Sets the algorithm used for image rotation and scaling. **Parameters:**

Name	Description
algorithm	Indicates the image transformation algorithm. For details, see TransformAlgorithm.

## SetTransformMap\(\) ``` void OHOS::UIView::SetTransformMap (const [TransformMap](OHOS-TransformMap.md) & transMap) ``` **Description:** Sets the affine transformation matrix. **Parameters:**

Name	Description
transMap	Indicates the transformation matrix.

## SetValidHeight\(\) ``` void OHOS::UIBoxProgress::SetValidHeight (int16_t height) ``` **Description:** Sets the actual height for this progress bar. The progress bar is centered in the view after the setting. By default, the height of the progress bar is the same as that of the view. If the height of the progress bar is greater than that of the view, the excess part cannot be displayed. **Parameters:**

Name	Description
height	Indicates the actual height to set.

**See also:** [GetValidHeight](Graphic.md#ga1e6c92b20c4931a058c0b7775bf180c9) ## SetValidWidth\(\) ``` void OHOS::UIBoxProgress::SetValidWidth (int16_t width) ``` **Description:** Sets the actual width for this progress bar. The progress bar is centered in the view after the setting. By default, the width of the progress bar is the same as that of the view. If the width of the progress bar is greater than that of the view, the excess part cannot be displayed. **Parameters:**

Name	Description
width	Indicates the actual width of this progress bar.

**See also:** [GetValidWidth](Graphic.md#ga6577d38d85234e08f709dd0ae131b255) ## SetValue\(\) ``` void OHOS::UIAbstractProgress::SetValue (int16_t value) ``` **Description:** Sets the current value for this progress bar. **Parameters:**

Name	Description
value	Indicates the current value of this progress bar, within [rangeMin, rangeMax] specified by SetRange. If the value is less than rangeMin, rangeMin is used; if the value is greater than rangeMax, rangeMax is used.

**See also:** [SetRange](Graphic.md#ga089e3875453011499ad33ed89a44a699) | [GetValue](Graphic.md#ga6face76aa7972efeb6cbb8f525f23135) ## SetValues\(\) \[1/2\] ``` bool OHOS::UIPicker::SetValues (const char * value[], uint16_t count ) ``` **Description:** Sets dynamic text data in the picker by using a string array. **Parameters:**

Name	Description
value[]	Indicates the array of text data.
count	Indicates the array size.

**Returns:** Returns **true** if the setting is successful; returns **false** otherwise. ## SetValues\(\) \[2/2\] ``` bool OHOS::UIPicker::SetValues (int16_t start, int16_t end ) ``` **Description:** Sets the numeric data in the picker by using a given numeric range. All integers in the range are automatically generated based on the start value and end value and placed in the picker in sequence. The start value must be smaller or equal to the end value. **Parameters:**

Name	Description
start	Indicates the start integer.
end	Indicates the end integer.

**Returns:** Returns **true** if the setting is successful; returns **false** otherwise. ## SetVertexNum\(\) ``` void OHOS::Polygon::SetVertexNum (uint8_t vertexNum) ``` **Description:** Sets the number of vertices of a polygon. **Parameters:**

Name	Description
vertexNum	Indicates the number of vertices.

## SetVerticalScrollState\(\) ``` void OHOS::UIScrollView::SetVerticalScrollState (bool state) ``` **Description:** Sets whether a vertical scroll is enabled. **Parameters:**

Name	Description
state	Specifies whether a vertical scroll is enabled. true indicates a vertical scroll is enabled, and false indicates the opposite case.

## SetViewId\(\) ``` void OHOS::UIView::SetViewId (const char * id) ``` **Description:** Sets the view ID. **Parameters:**

Name	Description
id	Indicates the pointer to the view ID.

## SetViewIndex\(\) ``` void OHOS::UIView::SetViewIndex (int16_t index) ``` **Description:** Sets the view index. **Parameters:**

Name	Description
index	Indicates the view index to set.

## SetVisible\(\) \[1/3\] ``` virtual void OHOS::UIView::SetVisible (bool visible) ``` **Description:** Sets whether the view is visible. Reimplemented in [OHOS::UISurfaceView](Graphic.md#gaa6b5efec0684a2800dba70c697d3902e), and [OHOS::UIDialog](Graphic.md#gaf836d530b3fa9d50f70053c2b0b528d6). **Parameters:**

Name	Description
visible	Specifies whether to set the view visible. Value true means to set the view visible, and false means the opposite.

## SetVisible\(\) \[2/3\] ``` void OHOS::UIDialog::SetVisible (bool visible) ``` **Description:** Sets whether a dialog box is visible. Reimplemented from [OHOS::UIView](Graphic.md#ga07e7e1f268bd6ce975f4f0f8487af5d0). **Parameters:**

Name	Description
visible	Specifies whether a dialog box is visible. The value true means visible, and false means invisible.

## SetVisible\(\) \[3/3\] ``` void OHOS::UISurfaceView::SetVisible (bool visible) ``` **Description:** Sets whether this view is visible. Reimplemented from [OHOS::UIView](Graphic.md#ga07e7e1f268bd6ce975f4f0f8487af5d0). **Parameters:**

Name	Description
visible	Specifies whether this view is visible. true indicates this view is visible, and false indicates the opposite case.

## SetWidth\(\) \[1/10\] ``` void OHOS::TextAdapter::SetWidth (int16_t width) ``` **Description:** Sets the width of [UILabel](OHOS-UILabel.md) constructed by the adapter. **Returns:** Returns the width of [UILabel](OHOS-UILabel.md). ## SetWidth\(\) \[2/10\] ``` void OHOS::Rect::SetWidth (int16_t width) ``` **Description:** Changes the width of the rectangle without changing the coordinate of the left boundary. **Parameters:**

Name	Description
width	Indicates the width of the rectangle.

## SetWidth\(\) \[3/10\] ``` virtual void OHOS::UIView::SetWidth (int16_t width) ``` **Description:** Sets the width for the view. Reimplemented in [OHOS::UIChart](Graphic.md#ga2ae317808111cd58e6ba93e030f23111), [OHOS::UILabel](Graphic.md#ga4000481fca247d526961d9da6809a806), [OHOS::UIButton](Graphic.md#ga420f927c473cec8c6f3265ff7c35336f), [OHOS::UIPicker](Graphic.md#ga792a345948af532f9c06cd40c05d1a2d), [OHOS::UITimePicker](Graphic.md#gad8dc3b2df7fe8aed16776a063efc8b4b), [OHOS::UISurfaceView](Graphic.md#ga54c350b75cf87ca112b3c21791f9c559), and [OHOS::UIBoxProgress](Graphic.md#ga4b3eeb9de2443182480a71cadb23178c). **Parameters:**

Name	Description
width	Indicates the width to set.

## SetWidth\(\) \[4/10\] ``` void OHOS::UIBoxProgress::SetWidth (int16_t width) ``` **Description:** Sets the width for the view holding this progress bar. The width of the view must be greater than or equal to the actual width of the progress bar to ensure a normal display. You need to call this function before calling [SetValidWidth](Graphic.md#gada3cf1819e826ee0aed4a40ef00b91a6) to set the actual width of the progress bar. Otherwise, the width of the progress bar is reset to **width** of the view. Reimplemented from [OHOS::UIView](Graphic.md#ga3375ec5ef059fd88c657af4552d2fa4f). **Parameters:**

Name	Description
width	Indicates the width of the view.

**See also:** [SetHeight](Graphic.md#ga54299cb7561cee9a03d0fc9d0ddda784) | [SetValidWidth](Graphic.md#gada3cf1819e826ee0aed4a40ef00b91a6) | [SetValidHeight](Graphic.md#ga6958b8273ad7a5563dfa19267cc3a13c) ## SetWidth\(\) \[5/10\] ``` void OHOS::UISurfaceView::SetWidth (int16_t width) ``` **Description:** Sets the width for this view. Reimplemented from [OHOS::UIView](Graphic.md#ga3375ec5ef059fd88c657af4552d2fa4f). **Parameters:**

Name	Description
width	Indicates the width to set.

## SetWidth\(\) \[6/10\] ``` void OHOS::UITimePicker::SetWidth (int16_t width) ``` **Description:** Sets the width for the time picker. Reimplemented from [OHOS::UIView](Graphic.md#ga3375ec5ef059fd88c657af4552d2fa4f). **Parameters:**

Name	Description
width	Indicates the width to set.

## SetWidth\(\) \[7/10\] ``` void OHOS::UIPicker::SetWidth (int16_t width) ``` **Description:** Sets the width for this component. Reimplemented from [OHOS::UIView](Graphic.md#ga3375ec5ef059fd88c657af4552d2fa4f). **Parameters:**

Name	Description
width	Indicates the width to set.

## SetWidth\(\) \[8/10\] ``` void OHOS::UIButton::SetWidth (int16_t width) ``` **Description:** Sets the width for this image. Reimplemented from [OHOS::UIView](Graphic.md#ga3375ec5ef059fd88c657af4552d2fa4f). **Parameters:**

Name	Description
width	Indicates the width to set.

## SetWidth\(\) \[9/10\] ``` void OHOS::UILabel::SetWidth (int16_t width) ``` **Description:** Sets the width for this label. Reimplemented from [OHOS::UIView](Graphic.md#ga3375ec5ef059fd88c657af4552d2fa4f). **Parameters:**

Name	Description
width	Indicates the width to set.

## SetWidth\(\) \[10/10\] ``` void OHOS::UIChart::SetWidth (int16_t width) ``` **Description:** Sets the width for this component. Reimplemented from [OHOS::UIView](Graphic.md#ga3375ec5ef059fd88c657af4552d2fa4f). **Parameters:**

Name	Description
width	Indicates the width to set.

## SetWorkMode\(\) \[1/2\] ``` virtual void OHOS::UIAbstractClock::SetWorkMode ([WorkMode](Graphic.md#ga19db90932bc71e6bbced6ccf2935ac98) newMode) ``` **Description:** Sets the working mode for this clock. Reimplemented in [OHOS::UIAnalogClock](Graphic.md#ga1714e171ff1e9248932a9f2c14c82d12). **Parameters:**

Name	Description
newMode	Indicates the working mode to set. For details, see WorkMode.

## SetWorkMode\(\) \[2/2\] ``` void OHOS::UIAnalogClock::SetWorkMode ([WorkMode](Graphic.md#ga19db90932bc71e6bbced6ccf2935ac98) newMode) ``` **Description:** Sets the working mode for this analog clock. Reimplemented from [OHOS::UIAbstractClock](Graphic.md#gaafa5df66c896268de27bf335c1b72b92). **Parameters:**

Name	Description
newMode	Indicates the working mode to set. For details, see WorkMode.

## SetX\(\) \[1/3\] ``` void OHOS::Rect::SetX (int16_t x) ``` **Description:** Changes the left boundary coordinate of the rectangle without changing the rectangle width. **Parameters:**

Name	Description
x	Indicates the coordinate of the left boundary.

## SetX\(\) \[2/3\] ``` virtual void OHOS::UIView::SetX (int16_t x) ``` **Description:** Sets the x-coordinate for the view. Reimplemented in [OHOS::UISurfaceView](Graphic.md#ga87457cce8ab3daa62852815ad36e9692). **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.

## SetX\(\) \[3/3\] ``` void OHOS::UISurfaceView::SetX (int16_t x) ``` **Description:** Sets the x-coordinate for this view. Reimplemented from [OHOS::UIView](Graphic.md#gaded403626558d28e62bf5632ccbb24b5). **Parameters:**

Name	Description
x	Indicates the x-coordinate to set.

## SetXScrollBarVisible\(\) ``` void OHOS::UIScrollView::SetXScrollBarVisible (bool state) ``` **Description:** Sets whether the horizontal scroll bar is visible. **Parameters:**

Name	Description
state	Specifies whether the horizontal scroll bar is visible. true indicates the horizontal scroll bar is visible, and false indicates the opposite case.

## SetY\(\) \[1/3\] ``` void OHOS::Rect::SetY (int16_t y) ``` **Description:** Changes the top boundary coordinate of the rectangle without changing the rectangle height. **Parameters:**

Name	Description
y	Indicates the coordinate of the top boundary.

## SetY\(\) \[2/3\] ``` virtual void OHOS::UIView::SetY (int16_t y) ``` **Description:** Sets the y-coordinate for the view. Reimplemented in [OHOS::UISurfaceView](Graphic.md#gad7e27c2508753b6752594c3615b5d2fe). **Parameters:**

Name	Description
y	Indicates the y-coordinate to set.

## SetY\(\) \[3/3\] ``` void OHOS::UISurfaceView::SetY (int16_t y) ``` **Description:** Sets the y-coordinate for this view. Reimplemented from [OHOS::UIView](Graphic.md#gaaa8edc224cf1c7deb2724fb225960877). **Parameters:**

Name	Description
y	Indicates the y-coordinate to set.

## SetYScrollBarVisible\(\) ``` void OHOS::UIScrollView::SetYScrollBarVisible (bool state) ``` **Description:** Sets whether the vertical scroll bar is visible. **Parameters:**

Name	Description
state	Specifies whether this vertical scroll bar is visible. true indicates the horizontal scroll bar is visible, and false indicates the opposite case.

## Silver\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Silver () ``` **Description:** Obtains the color data of silver. **Returns:** Returns the color data. ## SineEaseIn\(\) ``` static int16_t OHOS::EasingEquation::SineEaseIn (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in shaping like a sinusoidal curve. **sin\(t\)** is the equation for a sinusoidal easing. The animation starts slowly from zero velocity and accelerates fast towards the end. The acceleration change is similar to a sinusoidal curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [SineEaseOut](Graphic.md#ga34018757e69d7920557030f33393048d) | [SineEaseInOut](Graphic.md#ga2c3b14232a67095b0b941bae3a7b2e54) ## SineEaseInOut\(\) ``` static int16_t OHOS::EasingEquation::SineEaseInOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases in and then out shaping like a sinusoidal curve. **sin\(t\)** is the equation for a sinusoidal easing. The animation accelerates slowly until halfway and decelerates slowly towards the end. The acceleration change is similar to a sinusoidal curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [SineEaseIn](Graphic.md#ga89ee91a569b73c6ebb29ae4dfd2777f9) | [SineEaseOut](Graphic.md#ga34018757e69d7920557030f33393048d) ## SineEaseOut\(\) ``` static int16_t OHOS::EasingEquation::SineEaseOut (int16_t startPos, int16_t endPos, uint16_t curTime, uint16_t durationTime ) ``` **Description:** Eases out shaping like a sinusoidal curve. **sin\(t\)** is the equation for a sinusoidal easing. The animation starts fast and decelerates slowly towards the end. The acceleration change is similar to a sinusoidal curve. **Parameters:**

Name	Description
startPos	Indicates the start value of this animation.
endPos	Indicates the end value of this animation.
curTime	Indicates the current time of this animation.
durationTime	Indicates the total duration of this animation.

**Returns:** Returns the value for the current time. **See also:** [SineEaseIn](Graphic.md#ga89ee91a569b73c6ebb29ae4dfd2777f9) | [SineEaseInOut](Graphic.md#ga2c3b14232a67095b0b941bae3a7b2e54) ## Size\(\) ``` uint16_t [OHOS::List](OHOS-List-T.md)< T >::Size () const ``` **Description:** Obtains the size of a linked list. **Returns:** Returns the size of the linked list. ## Start\(\) \[1/3\] ``` void OHOS::UITextureMapper::Start () ``` **Description:** Starts this animator. ## Start\(\) \[2/3\] ``` void OHOS::Animator::Start () ``` **Description:** Starts this animator. **See also:** [Stop](Graphic.md#gad670cee429a5535149db0f8b3828e951) ## Start\(\) \[3/3\] ``` void OHOS::UIImageAnimatorView::Start () ``` **Description:** Starts this animator. The forward playback starts from the first image and the reverse playback starts from the last image. **See also:** [Stop](Graphic.md#ga1887f1afd8e85c0a9c781e182fe5afc3) ## Stop\(\) \[1/2\] ``` void OHOS::Animator::Stop () ``` **Description:** Stops this animator. **See also:** [Start](Graphic.md#gad56477fe4b6d0158082e841e327c1bf6) ## Stop\(\) \[2/2\] ``` void OHOS::UIImageAnimatorView::Stop (bool needReset = [/topic/body/section/screen/code {""}) true (code]) ``` **Description:** Stops this animator. **Parameters:**

Name	Description
needReset	Specifies whether the animator needs to be reset to the original one. true (default value) indicates the original image is displayed, and false indicates the current image is displayed.

**See also:** [Start](Graphic.md#ga99fb1b9b27ee65f812085f93e05330a6) ## Style\(\) ``` OHOS::Style::Style () ``` **Description:** A constructor used to create a **[Style](OHOS-Style.md)** instance. ## StyleDefault\(\) ``` OHOS::StyleDefault::StyleDefault () ``` **Description:** A constructor used to create a **[StyleDefault](OHOS-StyleDefault.md)** instance. ## SuthHodgClip\(\) ``` [Polygon](OHOS-Polygon.md) OHOS::SuthHodgClip (const [Rect](OHOS-Rect.md) & clipRect, const [Polygon](OHOS-Polygon.md) & polygon ) ``` **Description:** Implements Sutherland-Hodgman, an algorithm used for clipping polygons. **Parameters:**

Name	Description
clipRect	Indicates the rectangle used for clipping the polygon.
polygon	Indicates the polygon to clip.

**Returns:** Returns the polygon after clipping. ## Tail\(\) ``` [ListNode](OHOS-ListNode-T.md)* [OHOS::List](OHOS-List-T.md)< T >::Tail () const ``` **Description:** Obtains the tail node address of a linked list. **Returns:** Returns the tail node address. ## Task\(\) ``` OHOS::Task::Task (uint32_t period) ``` **Description:** A constructor used to create a **[Task](OHOS-Task.md)** instance with the specified running period. **Parameters:**

Name	Description
period	Indicates the running period of this task.

## Teal\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Teal () ``` **Description:** Obtains the color data of teal. **Returns:** Returns the color data. ## Text\(\) ``` OHOS::Text::Text () ``` **Description:** A constructor used to create a **[Text](OHOS-Text.md)** instance. ## TextAdapter\(\) ``` OHOS::TextAdapter::TextAdapter () ``` **Description:** A constructor used to create a **[UILabel](OHOS-UILabel.md)** instance. ## Theme\(\) ``` OHOS::Theme::Theme () ``` **Description:** A constructor used to create a **[Theme](OHOS-Theme.md)** instance. ## TransformMap\(\) \[1/2\] ``` OHOS::TransformMap::TransformMap () ``` **Description:** The default constructor used to create a **[TransformMap](OHOS-TransformMap.md)** instance. ## TransformMap\(\) \[2/2\] ``` OHOS::TransformMap::TransformMap (const [Rect](OHOS-Rect.md) & rect) ``` **Description:** A constructor used to create a **[TransformMap](OHOS-TransformMap.md)** instance. **Parameters:**

Name	Description
rect	Indicates the rectangle to transform.

## Translate\(\) ``` [Matrix3](OHOS-Matrix3-T.md)< T > [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::Translate (const [Vector2](OHOS-Vector2-T.md)< T > & trans) ``` **Description:** Obtains a matrix translation. **Parameters:**

Name	Description
trans	Indicates the distances to translate along the x-axis and y-axis.

**Returns:** Returns the matrix after translation. ## TranslateToPixel\(\) \[1/3\] ``` void OHOS::UIXAxis::TranslateToPixel (int16_t & value) ``` **Description:** Translates data into the x coordinate of a pixel. This function calculates the position of the corresponding pixel \(relative position in the chart\) based on the value of **value** and the data range of the x-axis. Implements [OHOS::UIAxis](Graphic.md#ga8ff3fd2953897245e4f6e3cb6bd71495). **Parameters:**

Name	Description
value	Indicates the current value. The x coordinate obtained after translation is also printed using this parameter.

## TranslateToPixel\(\) \[2/3\] ``` void OHOS::UIYAxis::TranslateToPixel (int16_t & value) ``` **Description:** Translates data into the y coordinate of a pixel. Calculates the position of the corresponding pixel \(relative position in the chart\) based on the value of **value** and the data range of the Y axis. Implements [OHOS::UIAxis](Graphic.md#ga8ff3fd2953897245e4f6e3cb6bd71495). **Parameters:**

Name	Description
value	Indicates the current value. The y coordinate obtained after translation is also printed using this parameter.

## TranslateToPixel\(\) \[3/3\] ``` virtual void OHOS::UIAxis::TranslateToPixel (int16_t & value) ``` **Description:** Translates data into pixel coordinates. This function calculates the relative position of a pixel in the corresponding [UIChart](OHOS-UIChart.md) based on the value of **value** and the data range of the coordinate axis. Implemented in [OHOS::UIYAxis](Graphic.md#gae70c8c411116746a2ab73a6f9bbd1233), and [OHOS::UIXAxis](Graphic.md#ga9407ddab6d7e65fc075ca37b86163e6f). **Parameters:**

Name	Description
value	Indicates the current value. The coordinate value obtained after translation is also printed using this parameter.

## UIAbstractClock\(\) \[1/2\] ``` OHOS::UIAbstractClock::UIAbstractClock () ``` **Description:** A default constructor used to create a **[UIAbstractClock](OHOS-UIAbstractClock.md)** instance. ## UIAbstractClock\(\) \[2/2\] ``` OHOS::UIAbstractClock::UIAbstractClock (uint8_t hour, uint8_t minute, uint8_t second ) ``` **Description:** A constructor used to create a **[UIAbstractClock](OHOS-UIAbstractClock.md)** instance with time elements \(hour, minute and second\). **Parameters:**

Name	Description
hour	Indicates the hour.
minute	Indicates the minute.
second	Indicates the second.

## UIAbstractProgress\(\) ``` OHOS::UIAbstractProgress::UIAbstractProgress () ``` **Description:** A constructor used to create a **[UIAbstractProgress](OHOS-UIAbstractProgress.md)** instance. ## UIAbstractScroll\(\) ``` OHOS::UIAbstractScroll::UIAbstractScroll () ``` **Description:** A constructor used to create a **[UIAbstractScroll](OHOS-UIAbstractScroll.md)** instance. ## UIAnalogClock\(\) ``` OHOS::UIAnalogClock::UIAnalogClock () ``` **Description:** A default constructor used to create a **[UIAnalogClock](OHOS-UIAnalogClock.md)** instance. ## UIArcLabel\(\) ``` OHOS::UIArcLabel::UIArcLabel () ``` **Description:** A default constructor used to create a **[UIArcLabel](OHOS-UIArcLabel.md)** instance. ## UIAxis\(\) ``` OHOS::UIAxis::UIAxis () ``` **Description:** A constructor used to create a **[UIAxis](OHOS-UIAxis.md)** instance. ## UIBoxProgress\(\) ``` OHOS::UIBoxProgress::UIBoxProgress () ``` **Description:** A constructor used to create a **[UIBoxProgress](OHOS-UIBoxProgress.md)** instance. ## UIButton\(\) \[1/2\] ``` OHOS::UIButton::UIButton () ``` **Description:** A constructor used to create a **[UIButton](OHOS-UIButton.md)** instance. ## UIButton\(\) \[2/2\] ``` OHOS::UIButton::UIButton (const char * id) ``` **Description:** A constructor used to create a **[UIButton](OHOS-UIButton.md)** instance based on the button ID. Buttons sharing the same ID are in the same batch. **Parameters:**

Name	Description
id	Indicates the button ID.

## UICanvas\(\) ``` OHOS::UICanvas::UICanvas () ``` **Description:** A constructor used to create a **[UICanvas](OHOS-UICanvas.md)** instance. ## UIChart\(\) ``` OHOS::UIChart::UIChart () ``` **Description:** A constructor used to create a **[UIChart](OHOS-UIChart.md)** instance. ## UIChartDataSerial\(\) ``` OHOS::UIChartDataSerial::UIChartDataSerial () ``` **Description:** A constructor used to create a **[UIChartDataSerial](OHOS-UIChartDataSerial.md)** instance. ## UIChartPillar\(\) ``` OHOS::UIChartPillar::UIChartPillar () ``` **Description:** A constructor used to create a **[UIChartPillar](OHOS-UIChartPillar.md)** instance. ## UIChartPolyline\(\) ``` OHOS::UIChartPolyline::UIChartPolyline () ``` **Description:** A constructor used to create a **[UIChartPolyline](OHOS-UIChartPolyline.md)** instance. ## UICheckBox\(\) ``` OHOS::UICheckBox::UICheckBox () ``` **Description:** A constructor used to create a **[UICheckBox](OHOS-UICheckBox.md)** instance. ## UICircleProgress\(\) ``` OHOS::UICircleProgress::UICircleProgress () ``` **Description:** A constructor used to create a **[UICircleProgress](OHOS-UICircleProgress.md)** instance. ## UIDialog\(\) ``` OHOS::UIDialog::UIDialog () ``` **Description:** A constructor used to create a **[UIDialog](OHOS-UIDialog.md)** instance. ## UIDigitalClock\(\) ``` OHOS::UIDigitalClock::UIDigitalClock () ``` **Description:** A default constructor used to create a **[UIDigitalClock](OHOS-UIDigitalClock.md)** instance. ## UIFree\(\) ``` void OHOS::UIFree (void * buffer) ``` **Description:** Releases memory for the graphics module. You can implement this function to override the **free** and **delete** functions. **Parameters:**

Name	Description
buffer	Indicates the pointer to the memory to be released.

## UIImageAnimatorView\(\) ``` OHOS::UIImageAnimatorView::UIImageAnimatorView () ``` **Description:** A constructor used to create a **[UIImageAnimatorView](OHOS-UIImageAnimatorView.md)** instance. ## UIImageView\(\) ``` OHOS::UIImageView::UIImageView () ``` **Description:** A default constructor used to create a **[UIImageView](OHOS-UIImageView.md)** instance. ## UILabel\(\) ``` OHOS::UILabel::UILabel () ``` **Description:** A constructor used to create a **[UILabel](OHOS-UILabel.md)** instance. ## UILabelButton\(\) ``` OHOS::UILabelButton::UILabelButton () ``` **Description:** A constructor used to create a **[UILabelButton](OHOS-UILabelButton.md)** instance. ## UIList\(\) \[1/2\] ``` OHOS::UIList::UIList () ``` **Description:** A constructor used to create a **[UIList](OHOS-UIList.md)** instance in the vertical direction. ## UIList\(\) \[2/2\] ``` OHOS::UIList::UIList (uint8_t direction) ``` **Description:** A constructor used to create a **[UIList](OHOS-UIList.md)** instance in the specified direction. **Parameters:**

Name	Description
direction	Indicates the UIList direction, either HORIZONTAL or VERTICAL.

## UIMalloc\(\) ``` void* OHOS::UIMalloc (uint32_t size) ``` **Description:** Applies for memory for the graphics module. You can implement this function to override the **malloc** and **new** functions. **Parameters:**

Name	Description
size	Indicates the size of the memory to apply for.

## UIPicker\(\) ``` OHOS::UIPicker::UIPicker () ``` **Description:** A constructor used to create a **[UIPicker](OHOS-UIPicker.md)** instance. ## UIRadioButton\(\) ``` OHOS::UIRadioButton::UIRadioButton () ``` **Description:** A constructor used to create a **[UIRadioButton](OHOS-UIRadioButton.md)** instance. ## UIRepeatButton\(\) ``` OHOS::UIRepeatButton::UIRepeatButton () ``` **Description:** A constructor used to create a **[UIRepeatButton](OHOS-UIRepeatButton.md)** instance. ## UIScrollView\(\) ``` OHOS::UIScrollView::UIScrollView () ``` **Description:** A constructor used to create a **[UIScrollView](OHOS-UIScrollView.md)** instance, with both horizontal and vertical scrolls supported. ## UISlider\(\) ``` OHOS::UISlider::UISlider () ``` **Description:** A constructor used to create a **[UISlider](OHOS-UISlider.md)** instance. ## UISurfaceView\(\) ``` OHOS::UISurfaceView::UISurfaceView () ``` **Description:** A constructor used to create a **[UISurfaceView](OHOS-UISurfaceView.md)** instance. ## UISwipeView\(\) ``` OHOS::UISwipeView::UISwipeView (uint8_t direction = [/topic/body/section/screen/code {""}) [HORIZONTAL](Graphic.md#ga34dfbde0fad8baade31c02d9e8dd5026) (code]) ``` **Description:** A constructor used to create a **[UISwipeView](OHOS-UISwipeView.md)** instance. ## UITextureMapper\(\) ``` OHOS::UITextureMapper::UITextureMapper () ``` **Description:** A constructor used to create a **[UITextureMapper](OHOS-UITextureMapper.md)** instance. ## UITimePicker\(\) ``` OHOS::UITimePicker::UITimePicker () ``` **Description:** A constructor used to create a **[UITimePicker](OHOS-UITimePicker.md)** instance. ## UIToggleButton\(\) ``` OHOS::UIToggleButton::UIToggleButton () ``` **Description:** A constructor used to create a **[UIToggleButton](OHOS-UIToggleButton.md)** instance. ## UIView\(\) \[1/2\] ``` OHOS::UIView::UIView () ``` **Description:** A default constructor used to create an **[UIView](OHOS-UIView.md)** instance. ## UIView\(\) \[2/2\] ``` OHOS::UIView::UIView (const char * id) ``` **Description:** A constructor used to create an **[UIView](OHOS-UIView.md)** instance. **Parameters:**

Name	Description
id	Indicates the pointer to the view ID.

## UIViewGroup\(\) ``` OHOS::UIViewGroup::UIViewGroup () ``` **Description:** A default constructor used to create a **[UIViewGroup](OHOS-UIViewGroup.md)** instance. ## UIXAxis\(\) ``` OHOS::UIXAxis::UIXAxis () ``` **Description:** A constructor used to create a **[UIXAxis](OHOS-UIXAxis.md)** instance. ## UIYAxis\(\) ``` OHOS::UIYAxis::UIYAxis () ``` **Description:** A constructor used to create a **[UIYAxis](OHOS-UIYAxis.md)** instance. ## UpdateClock\(\) \[1/3\] ``` virtual void OHOS::UIAbstractClock::UpdateClock (bool clockInit) ``` **Description:** Updates this clock. Reimplemented in [OHOS::UIAnalogClock](Graphic.md#ga5274a3e5b66e5f80aab899ef4e61edb2), and [OHOS::UIDigitalClock](Graphic.md#ga386c03c483ef38cb5310563b6ba9bc02). **Parameters:**

Name	Description
clockInit	Specifies whether it is the first initialization. true indicates it is the first initialization, and false indicates the opposite case.

## UpdateClock\(\) \[2/3\] ``` void OHOS::UIDigitalClock::UpdateClock (bool clockInit) ``` **Description:** Updates this digital clock. Reimplemented from [OHOS::UIAbstractClock](Graphic.md#gad7c0fba1eac5d10998954e9c1e097197). **Parameters:**

Name	Description
clockInit	Specifies whether the first initialization. true indicates the first initialization, and false indicates the opposite case.

## UpdateClock\(\) \[3/3\] ``` void OHOS::UIAnalogClock::UpdateClock (bool clockInit) ``` **Description:** Updates the time of this analog clock. Reimplemented from [OHOS::UIAbstractClock](Graphic.md#gad7c0fba1eac5d10998954e9c1e097197). **Parameters:**

Name	Description
clockInit	Specifies whether it is the first initialization. true indicates it is the first initialization, and false indicates the opposite case.

## Vector2\(\) \[1/2\] ``` [OHOS::Vector2](OHOS-Vector2-T.md)< T >::[Vector2](OHOS-Vector2-T.md) () ``` **Description:** A constructor used to create a **[Vector2](OHOS-Vector2-T.md)** instance. ## Vector2\(\) \[2/2\] ``` [OHOS::Vector2](OHOS-Vector2-T.md)< T >::[Vector2](OHOS-Vector2-T.md) (T x, T y ) ``` **Description:** A constructor used to create a **[Vector2](OHOS-Vector2-T.md)** instance based on the X and Y coordinates. **Parameters:**

Name	Description
x	Indicates the X coordinate.
y	Indicates the Y coordinate.

## Vector3\(\) \[1/2\] ``` [OHOS::Vector3](OHOS-Vector3-T.md)< T >::[Vector3](OHOS-Vector3-T.md) () ``` **Description:** A constructor used to create a **[Vector3](OHOS-Vector3-T.md)** instance. ## Vector3\(\) \[2/2\] ``` [OHOS::Vector3](OHOS-Vector3-T.md)< T >::[Vector3](OHOS-Vector3-T.md) (T x, T y, T z ) ``` **Description:** Defines a **[Vector3](OHOS-Vector3-T.md)** instance and initializes the values of **x**, **y**, and **z**. **Parameters:**

Name	Description
x	Indicates the X coordinate.
y	Indicates the Y coordinate.
z	Indicates the Z coordinate.

## VirtualDeviceEvent\(\) ``` OHOS::VirtualDeviceEvent::VirtualDeviceEvent (uint16_t type, uint16_t value ) ``` **Description:** A constructor used to create a **[VirtualDeviceEvent](OHOS-VirtualDeviceEvent.md)** instance. **Parameters:**

Name	Description
type	Indicates the virtual device type. The options are AOD and PRIVATE.
value	Indicates the virtual event value.

## White\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::White () ``` **Description:** Obtains the color data of white. **Returns:** Returns the color data. ## Yellow\(\) ``` static [ColorType](OHOS-Color32.md) OHOS::Color::Yellow () ``` **Description:** Obtains the color data of yellow. **Returns:** Returns the color data. ## \~AbstractAdapter\(\) ``` virtual OHOS::AbstractAdapter::~AbstractAdapter () ``` **Description:** A destructor used to delete the **[AbstractAdapter](OHOS-AbstractAdapter.md)** instance. ## \~Animator\(\) ``` virtual OHOS::Animator::~Animator () ``` **Description:** A destructor used to delete the **[Animator](OHOS-Animator.md)** instance. ## \~AnimatorCallback\(\) ``` virtual OHOS::AnimatorCallback::~AnimatorCallback () ``` **Description:** A default destructor used to delete an **[AnimatorCallback](OHOS-AnimatorCallback.md)** instance. ## \~AnimatorStopListener\(\) \[1/2\] ``` virtual OHOS::UITextureMapper::AnimatorStopListener::~AnimatorStopListener () ``` **Description:** A destructor used to delete an **[AnimatorStopListener](OHOS-UITextureMapper-AnimatorStopListener.md)** instance. ## \~AnimatorStopListener\(\) \[2/2\] ``` virtual OHOS::UIImageAnimatorView::AnimatorStopListener::~AnimatorStopListener () ``` **Description:** A destructor used to delete an **[AnimatorStopListener](OHOS-UIImageAnimatorView-AnimatorStopListener.md)** instance. ## \~CancelEvent\(\) ``` virtual OHOS::CancelEvent::~CancelEvent () ``` **Description:** A destructor used to delete the **[CancelEvent](OHOS-CancelEvent.md)** instance. ## \~ClickEvent\(\) ``` virtual OHOS::ClickEvent::~ClickEvent () ``` **Description:** A destructor used to delete the **[ClickEvent](OHOS-ClickEvent.md)** instance. ## \~DragEvent\(\) ``` virtual OHOS::DragEvent::~DragEvent () ``` **Description:** A destructor used to delete the **[DragEvent](OHOS-DragEvent.md)** instance. ## \~Event\(\) ``` virtual OHOS::Event::~Event () ``` **Description:** A destructor used to delete the **[Event](OHOS-Event.md)** instance. ## \~FlexLayout\(\) ``` virtual OHOS::FlexLayout::~FlexLayout () ``` **Description:** A destructor used to delete the **[FlexLayout](OHOS-FlexLayout.md)** instance. ## \~GridLayout\(\) ``` virtual OHOS::GridLayout::~GridLayout () ``` **Description:** A destructor used to delete the **[GridLayout](OHOS-GridLayout.md)** instance. ## \~Hand\(\) ``` virtual OHOS::UIAnalogClock::Hand::~Hand () ``` **Description:** A destructor used to delete the **[Hand](OHOS-UIAnalogClock-Hand.md)** instance. ## \~Image\(\) ``` virtual OHOS::Image::~Image () ``` **Description:** A destructor used to delete the **[Image](OHOS-Image.md)** instance. ## \~KeyEvent\(\) ``` OHOS::KeyEvent::~KeyEvent () ``` **Description:** A destructor used to delete the **[KeyEvent](OHOS-KeyEvent.md)** instance. ## \~Layout\(\) ``` virtual OHOS::Layout::~Layout () ``` **Description:** A destructor used to delete the **[Layout](OHOS-Layout.md)** instance. ## \~Line\(\) ``` OHOS::Line::~Line () ``` **Description:** A destructor used to delete the **[Line](OHOS-Line.md)** instance. ## \~List\(\) ``` virtual [OHOS::List](OHOS-List-T.md)< T >::~[List](OHOS-List-T.md) () ``` **Description:** A destructor used to delete the **[List](OHOS-List-T.md)** instance. ## \~ListScrollListener\(\) ``` virtual OHOS::ListScrollListener::~ListScrollListener () ``` **Description:** A destructor used to delete the **[ListScrollListener](OHOS-ListScrollListener.md)** instance. ## \~LongPressEvent\(\) ``` virtual OHOS::LongPressEvent::~LongPressEvent () ``` **Description:** A destructor used to delete the **[LongPressEvent](OHOS-LongPressEvent.md)** instance. ## \~Matrix3\(\) ``` [OHOS::Matrix3](OHOS-Matrix3-T.md)< T >::~[Matrix3](OHOS-Matrix3-T.md) () ``` **Description:** A destructor used to delete the **[Matrix3](OHOS-Matrix3-T.md)** instance. ## \~OnChangeListener\(\) ``` virtual OHOS::UICheckBox::OnChangeListener::~OnChangeListener () ``` **Description:** A destructor used to delete the **[OnChangeListener](OHOS-UICheckBox-OnChangeListener.md)** instance. ## \~OnClickListener\(\) ``` virtual OHOS::UIView::OnClickListener::~OnClickListener () ``` **Description:** A destructor used to delete the **[OnClickListener](OHOS-UIView-OnClickListener.md)** instance. ## \~OnDragListener\(\) ``` virtual OHOS::UIView::OnDragListener::~OnDragListener () ``` **Description:** A destructor used to delete the **[OnDragListener](OHOS-UIView-OnDragListener.md)** instance. ## \~OnFPSChangedListener\(\) ``` virtual OHOS::SysInfo::OnFPSChangedListener::~OnFPSChangedListener () ``` **Description:** A destructor used to delete the **[OnFPSChangedListener](OHOS-SysInfo-OnFPSChangedListener.md)** instance. ## \~OnLongPressListener\(\) ``` virtual OHOS::UIView::OnLongPressListener::~OnLongPressListener () ``` **Description:** A destructor used to delete the **[OnLongPressListener](OHOS-UIView-OnLongPressListener.md)** instance. ## \~OnScrollListener\(\) ``` virtual OHOS::UIScrollView::OnScrollListener::~OnScrollListener () ``` **Description:** A destructor used to delete the **[OnScrollListener](OHOS-UIScrollView-OnScrollListener.md)** instance. ## \~OnTouchListener\(\) ``` virtual OHOS::UIView::OnTouchListener::~OnTouchListener () ``` **Description:** A destructor used to delete the **[OnTouchListener](OHOS-UIView-OnTouchListener.md)** instance. ## \~Paint\(\) ``` virtual OHOS::Paint::~Paint () ``` **Description:** A destructor used to delete the **[Paint](OHOS-Paint.md)** instance. ## \~Polygon\(\) ``` OHOS::Polygon::~Polygon () ``` **Description:** A destructor used to delete the **[Polygon](OHOS-Polygon.md)** instance. ## \~PressEvent\(\) ``` virtual OHOS::PressEvent::~PressEvent () ``` **Description:** A destructor used to delete the **[PressEvent](OHOS-PressEvent.md)** instance. ## \~Rect\(\) ``` OHOS::Rect::~Rect () ``` **Description:** A destructor used to delete the **[Rect](OHOS-Rect.md)** instance. ## \~ReleaseEvent\(\) ``` virtual OHOS::ReleaseEvent::~ReleaseEvent () ``` **Description:** A destructor used to delete the **[ReleaseEvent](OHOS-ReleaseEvent.md)** instance. ## \~SelectedListener\(\) \[1/2\] ``` OHOS::UITimePicker::SelectedListener::~SelectedListener () ``` **Description:** A destructor used to delete the **[SelectedListener](OHOS-UITimePicker-SelectedListener.md)** instance. ## \~SelectedListener\(\) \[2/2\] ``` virtual OHOS::UIPicker::SelectedListener::~SelectedListener () ``` **Description:** A destructor used to delete the **[SelectedListener](OHOS-UIPicker-SelectedListener.md)** instance. ## \~Style\(\) ``` virtual OHOS::Style::~Style () ``` **Description:** A destructor used to delete the **[Style](OHOS-Style.md)** instance. ## \~StyleDefault\(\) ``` OHOS::StyleDefault::~StyleDefault () ``` **Description:** A destructor used to delete the **[StyleDefault](OHOS-StyleDefault.md)** instance. ## \~Text\(\) ``` virtual OHOS::Text::~Text () ``` **Description:** A destructor used to delete the **[Text](OHOS-Text.md)** instance. ## \~TextAdapter\(\) ``` virtual OHOS::TextAdapter::~TextAdapter () ``` **Description:** A destructor used to delete the **[UILabel](OHOS-UILabel.md)** instance. ## \~Theme\(\) ``` virtual OHOS::Theme::~Theme () ``` **Description:** A destructor used to delete the **[Theme](OHOS-Theme.md)** instance. ## \~TransformMap\(\) ``` OHOS::TransformMap::~TransformMap () ``` **Description:** A destructor used to delete the **[TransformMap](OHOS-TransformMap.md)** instance. ## \~UIAbstractClock\(\) ``` virtual OHOS::UIAbstractClock::~UIAbstractClock () ``` **Description:** A destructor used to delete the **[UIAbstractClock](OHOS-UIAbstractClock.md)** instance. ## \~UIAbstractProgress\(\) ``` virtual OHOS::UIAbstractProgress::~UIAbstractProgress () ``` **Description:** A destructor used to delete the **[UIAbstractProgress](OHOS-UIAbstractProgress.md)** instance. ## \~UIAbstractScroll\(\) ``` virtual OHOS::UIAbstractScroll::~UIAbstractScroll () ``` **Description:** A destructor used to delete the **[UIAbstractScroll](OHOS-UIAbstractScroll.md)** instance. ## \~UIAnalogClock\(\) ``` virtual OHOS::UIAnalogClock::~UIAnalogClock () ``` **Description:** A destructor used to delete the **[UIAnalogClock](OHOS-UIAnalogClock.md)** instance. ## \~UIArcLabel\(\) ``` virtual OHOS::UIArcLabel::~UIArcLabel () ``` **Description:** A destructor used to delete the **[UIArcLabel](OHOS-UIArcLabel.md)** instance. ## \~UIAxis\(\) ``` virtual OHOS::UIAxis::~UIAxis () ``` **Description:** A destructor used to delete the **[UIAxis](OHOS-UIAxis.md)** instance. ## \~UIBoxProgress\(\) ``` virtual OHOS::UIBoxProgress::~UIBoxProgress () ``` **Description:** A destructor used to delete the **[UIBoxProgress](OHOS-UIBoxProgress.md)** instance. ## \~UIButton\(\) ``` virtual OHOS::UIButton::~UIButton () ``` **Description:** A destructor used to delete the **[UIButton](OHOS-UIButton.md)** instance. ## \~UICanvas\(\) ``` virtual OHOS::UICanvas::~UICanvas () ``` **Description:** A destructor used to delete the **[UICanvas](OHOS-UICanvas.md)** instance. ## \~UIChart\(\) ``` virtual OHOS::UIChart::~UIChart () ``` **Description:** A destructor used to delete the **[UIChart](OHOS-UIChart.md)** instance. ## \~UIChartDataSerial\(\) ``` virtual OHOS::UIChartDataSerial::~UIChartDataSerial () ``` **Description:** A destructor used to delete the **[UIChartDataSerial](OHOS-UIChartDataSerial.md)** instance. ## \~UIChartPillar\(\) ``` virtual OHOS::UIChartPillar::~UIChartPillar () ``` **Description:** A destructor used to delete the **[UIChartPillar](OHOS-UIChartPillar.md)** instance. ## \~UIChartPolyline\(\) ``` virtual OHOS::UIChartPolyline::~UIChartPolyline () ``` **Description:** A destructor used to delete the **[UIChartPolyline](OHOS-UIChartPolyline.md)** instance. ## \~UICheckBox\(\) ``` virtual OHOS::UICheckBox::~UICheckBox () ``` **Description:** A destructor used to delete the **[UICheckBox](OHOS-UICheckBox.md)** instance. ## \~UICircleProgress\(\) ``` virtual OHOS::UICircleProgress::~UICircleProgress () ``` **Description:** A destructor used to delete the **[UICircleProgress](OHOS-UICircleProgress.md)** instance. ## \~UIDialog\(\) ``` virtual OHOS::UIDialog::~UIDialog () ``` **Description:** A destructor used to delete the **[UIDialog](OHOS-UIDialog.md)** instance. ## \~UIDigitalClock\(\) ``` virtual OHOS::UIDigitalClock::~UIDigitalClock () ``` **Description:** A destructor used to delete the **[UIDigitalClock](OHOS-UIDigitalClock.md)** instance. ## \~UIImageAnimatorView\(\) ``` virtual OHOS::UIImageAnimatorView::~UIImageAnimatorView () ``` **Description:** A destructor used to delete the **[UIImageAnimatorView](OHOS-UIImageAnimatorView.md)** instance. ## \~UIImageView\(\) ``` virtual OHOS::UIImageView::~UIImageView () ``` **Description:** A destructor used to delete the **[UIImageView](OHOS-UIImageView.md)** instance. ## \~UILabel\(\) ``` virtual OHOS::UILabel::~UILabel () ``` **Description:** A destructor used to delete the **[UILabel](OHOS-UILabel.md)** instance. ## \~UILabelButton\(\) ``` virtual OHOS::UILabelButton::~UILabelButton () ``` **Description:** A destructor used to delete the **[UILabelButton](OHOS-UILabelButton.md)** instance. ## \~UIList\(\) ``` virtual OHOS::UIList::~UIList () ``` **Description:** A destructor used to delete the **[UIList](OHOS-UIList.md)** instance. ## \~UIPicker\(\) ``` virtual OHOS::UIPicker::~UIPicker () ``` **Description:** A destructor used to delete the **[UIPicker](OHOS-UIPicker.md)** instance. ## \~UIRadioButton\(\) ``` virtual OHOS::UIRadioButton::~UIRadioButton () ``` **Description:** A destructor used to delete the **[UIRadioButton](OHOS-UIRadioButton.md)** instance. ## \~UIRepeatButton\(\) ``` virtual OHOS::UIRepeatButton::~UIRepeatButton () ``` **Description:** A destructor used to delete the **[UIRepeatButton](OHOS-UIRepeatButton.md)** instance. ## \~UIScrollView\(\) ``` virtual OHOS::UIScrollView::~UIScrollView () ``` **Description:** A destructor used to delete the **[UIScrollView](OHOS-UIScrollView.md)** instance. ## \~UISlider\(\) ``` virtual OHOS::UISlider::~UISlider () ``` **Description:** A destructor used to delete the **[UISlider](OHOS-UISlider.md)** instance. ## \~UISliderEventListener\(\) ``` virtual OHOS::UISlider::UISliderEventListener::~UISliderEventListener () ``` **Description:** A destructor used to delete the ** [UISliderEventListener](OHOS-UISlider-UISliderEventListener.md) ** instance. ## \~UISurfaceView\(\) ``` OHOS::UISurfaceView::~UISurfaceView () ``` **Description:** A destructor used to delete the **[UISurfaceView](OHOS-UISurfaceView.md)** instance. ## \~UISwipeView\(\) ``` virtual OHOS::UISwipeView::~UISwipeView () ``` **Description:** A destructor used to delete the **[UISwipeView](OHOS-UISwipeView.md)** instance. ## \~UITextureMapper\(\) ``` virtual OHOS::UITextureMapper::~UITextureMapper () ``` **Description:** A destructor used to delete the **[UITextureMapper](OHOS-UITextureMapper.md)** instance. ## \~UITimePicker\(\) ``` virtual OHOS::UITimePicker::~UITimePicker () ``` **Description:** A destructor used to delete the **[UITimePicker](OHOS-UITimePicker.md)** instance. ## \~UIToggleButton\(\) ``` virtual OHOS::UIToggleButton::~UIToggleButton () ``` **Description:** A destructor used to delete the **[UIToggleButton](OHOS-UIToggleButton.md)** instance. ## \~UIView\(\) ``` virtual OHOS::UIView::~UIView () ``` **Description:** A destructor used to delete the **[UIView](OHOS-UIView.md)** instance. ## \~UIViewGroup\(\) ``` virtual OHOS::UIViewGroup::~UIViewGroup () ``` **Description:** A destructor used to delete the **[UIViewGroup](OHOS-UIViewGroup.md)** instance. ## \~UIXAxis\(\) ``` virtual OHOS::UIXAxis::~UIXAxis () ``` **Description:** A destructor used to delete the **[UIXAxis](OHOS-UIXAxis.md)** instance. ## \~UIYAxis\(\) ``` virtual OHOS::UIYAxis::~UIYAxis () ``` **Description:** A destructor used to delete the **[UIYAxis](OHOS-UIYAxis.md)** instance. ## \~Vector2\(\) ``` [OHOS::Vector2](OHOS-Vector2-T.md)< T >::~[Vector2](OHOS-Vector2-T.md) () ``` **Description:** A destructor used to delete the **[Vector2](OHOS-Vector2-T.md)** instance. ## \~Vector3\(\) ``` [OHOS::Vector3](OHOS-Vector3-T.md)< T >::~[Vector3](OHOS-Vector3-T.md) () ``` **Description:** A destructor used to delete the **[Vector3](OHOS-Vector3-T.md)** instance. ## \~VirtualDeviceEvent\(\) ``` OHOS::VirtualDeviceEvent::~VirtualDeviceEvent () ``` **Description:** A destructor used to delete the **[VirtualDeviceEvent](OHOS-VirtualDeviceEvent.md)** instance. ## **Variable Documentation** ## align ``` [UITextLanguageAlignment](Graphic.md#ga3f99b58f731a37cacde72d5e0c934593) OHOS::UICanvas::FontStyle::align ``` **Description:** [Text](OHOS-Text.md) alignment mode. For details, see **UITextLanguageAlignment**. ## alpha \[1/2\] ``` uint8_t OHOS::Color32::alpha ``` **Description:** Alpha \(how opaque each pixel is\) ## alpha \[2/2\] ``` uint8_t { ... } ::alpha ``` **Description:** Alpha \(how opaque each pixel is\) ## ANIMATOR\_TIME ``` constexpr static uint16_t OHOS::UISwipeView::ANIMATOR_TIME = 12 ``` **Description:** Indicates that the animation duration is 12 ticks. ## blue \[1/5\] ``` uint16_t { ... } ::blue ``` **Description:** Blue ## blue \[2/5\] ``` uint16_t OHOS::Color16::blue ``` **Description:** Blue ## blue \[3/5\] ``` uint8_t OHOS::Color24::blue ``` **Description:** Blue ## blue \[4/5\] ``` uint8_t OHOS::Color32::blue ``` **Description:** Blue ## blue \[5/5\] ``` uint8_t { ... } ::blue ``` **Description:** Blue ## CIRCLE\_IN\_DEGREE ``` constexpr uint16_t OHOS::CIRCLE_IN_DEGREE = 360 ``` **Description:** A full rotation: 360 degrees ## colorMode ``` uint32_t OHOS::ImageHeader::colorMode ``` **Description:** [Color](OHOS-Color.md) format, which is used to match image type. This variable is important. ## data ``` const uint8_t* OHOS::ImageInfo::data ``` **Description:** Pixel color data of pixelmap images ## dataSize ``` uint32_t OHOS::ImageInfo::dataSize ``` **Description:** Size of the image data \(in bytes\) ## DEFAULT\_BLANK\_SIZE ``` constexpr static uint16_t OHOS::UISwipeView::DEFAULT_BLANK_SIZE = 30 ``` **Description:** Indicates the maximum distance between the first and the last tab when the current view is not in a cycle swipe mode. The page can be rebound after the setting. ## direct ``` [UITextLanguageDirect](Graphic.md#ga0c108f97781843f67c101b47b6c00cf0) OHOS::UICanvas::FontStyle::direct ``` **Description:** [Text](OHOS-Text.md) direction. For details, see **UITextLanguageDirect**. ## fillColor ``` [ColorType](OHOS-Color32.md) OHOS::UIChartDataSerial::PointStyle::fillColor ``` **Description:** Fill color ## fontName ``` const char* OHOS::UICanvas::FontStyle::fontName ``` **Description:** Font name ## fontSize ``` uint8_t OHOS::UICanvas::FontStyle::fontSize ``` **Description:** Font size ## full \[1/2\] ``` uint16_t OHOS::Color16::full ``` **Description:** Full RGB data ## full \[2/2\] ``` uint32_t OHOS::Color32::full ``` **Description:** Full RGB data ## green \[1/5\] ``` uint16_t { ... } ::green ``` **Description:** Green ## green \[2/5\] ``` uint16_t OHOS::Color16::green ``` **Description:** Green ## green \[3/5\] ``` uint8_t OHOS::Color24::green ``` **Description:** Green ## green \[4/5\] ``` uint8_t { ... } ::green ``` **Description:** Green ## green \[5/5\] ``` uint8_t OHOS::Color32::green ``` **Description:** Green ## header ``` [ImageHeader](OHOS-ImageHeader.md) OHOS::ImageInfo::header ``` **Description:** [Image](OHOS-Image.md) head node information. For details, see [ImageHeader](OHOS-ImageHeader.md). ## height \[1/2\] ``` uint16_t OHOS::ImageHeader::height ``` **Description:** [Image](OHOS-Image.md) height ## height \[2/2\] ``` int16_t OHOS::ImageAnimatorInfo::height ``` **Description:** [Image](OHOS-Image.md) height ## HORIZONTAL ``` constexpr uint8_t OHOS::UISwipeView::HORIZONTAL = 0 ``` **Description:** Indicates the horizontal direction. ## imageInfo ``` const char* OHOS::ImageAnimatorInfo::imageInfo ``` **Description:** [Image](OHOS-Image.md) path or pointer to the [ImageInfo](OHOS-ImageInfo.md) structure ## inactive ``` [Style](OHOS-Style.md) OHOS::ButtonStyle::inactive ``` **Description:** [Style](OHOS-Style.md) when inactive ## letterSpace ``` int16_t OHOS::UICanvas::FontStyle::letterSpace ``` **Description:** Letter-spacing ## MAX\_VERTEX\_NUM ``` const uint8_t OHOS::Polygon::MAX_VERTEX_NUM = 8 ``` **Description:** Maximum number of vertices in a polygon ## pos ``` [Point](OHOS-Point.md) OHOS::ImageAnimatorInfo::pos ``` **Description:** [Image](OHOS-Image.md) start position, relative to this view ## pressed ``` [Style](OHOS-Style.md) OHOS::ButtonStyle::pressed ``` **Description:** [Style](OHOS-Style.md) when pressed ## QUARTER\_IN\_DEGREE ``` constexpr uint16_t OHOS::QUARTER_IN_DEGREE = 90 ``` **Description:** A quarter of a rotation: 90 degrees ## radius ``` uint16_t OHOS::UIChartDataSerial::PointStyle::radius ``` **Description:** Inner radius ## red \[1/5\] ``` uint16_t OHOS::Color16::red ``` **Description:** Red ## red \[2/5\] ``` uint16_t { ... } ::red ``` **Description:** Red ## red \[3/5\] ``` uint8_t OHOS::Color24::red ``` **Description:** Red ## red \[4/5\] ``` uint8_t OHOS::Color32::red ``` **Description:** Red ## red \[5/5\] ``` uint8_t { ... } ::red ``` **Description:** Red ## released ``` [Style](OHOS-Style.md) OHOS::ButtonStyle::released ``` **Description:** [Style](OHOS-Style.md) when released ## SEMICIRCLE\_IN\_DEGREE ``` constexpr uint16_t OHOS::SEMICIRCLE_IN_DEGREE = 180 ``` **Description:** A half of a rotation: 180 degrees ## STOP\_DISTANCE ``` constexpr static uint16_t OHOS::UISwipeView::STOP_DISTANCE = 5 ``` **Description:** Indicates the maximum distance of an invalid dragging. Dragging is not triggered if the distance is less than this value. ## strokeColor ``` [ColorType](OHOS-Color32.md) OHOS::UIChartDataSerial::PointStyle::strokeColor ``` **Description:** Border color ## strokeWidth ``` uint16_t OHOS::UIChartDataSerial::PointStyle::strokeWidth ``` **Description:** Border width, which extends outwards from the inner radius ## TEXT\_ELLIPSIS\_END\_INV ``` constexpr uint16_t OHOS::Text::TEXT_ELLIPSIS_END_INV = 0xFFFF ``` **Description:** Invalid value for the ellipsis position ## THREE\_QUARTER\_IN\_DEGREE ``` constexpr uint16_t OHOS::THREE_QUARTER_IN_DEGREE = 270 ``` **Description:** Three fourths of a rotation: 270 degrees ## UI\_PI ``` constexpr double OHOS::UI_PI = 3.14159265358979 ``` **Description:** Pi value ## userData ``` void* OHOS::ImageInfo::userData ``` **Description:** User-defined data ## VERTICAL ``` constexpr uint8_t OHOS::UISwipeView::VERTICAL = 1 ``` **Description:** Indicates the vertical direction. ## width \[1/2\] ``` uint16_t OHOS::ImageHeader::width ``` **Description:** [Image](OHOS-Image.md) width ## width \[2/2\] ``` int16_t OHOS::ImageAnimatorInfo::width ``` **Description:** [Image](OHOS-Image.md) width ## x ``` int16_t OHOS::Point::x ``` **Description:** X coordinate ## y ``` int16_t OHOS::Point::y ``` **Description:** Y coordinate