# OHOS::UISurfaceView ## **Overview** **Related Modules:** [Graphic](Graphic.md) **Description:** Represents a surface view that interacts with the multimedia to achieve camera preview and video playback. **Since:** 1.0 **Version:** 1.0 ## **Summary** ## Public Member Functions
A constructor used to create a UISurfaceView instance. |
|
A destructor used to delete the UISurfaceView instance. |
|
GetSurface () const |
Surface * Obtains the surface, which should be used together with the camera and video modules. |
SetPosition (int16_t x, int16_t y) override |
|
SetPosition (int16_t x, int16_t y, int16_t width, int16_t height) override |
|
Resize (int16_t width, int16_t height) override |
|
SetX (int16_t x) override |
|
SetY (int16_t y) override |
|
SetWidth (int16_t width) override |
|
SetHeight (int16_t height) override |
|
SetVisible (bool visible) override |
|
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. |
|
UIView () |
A default constructor used to create an UIView instance. |
UIView (const char *id) |
A constructor used to create an UIView instance. |
~UIView () |
A destructor used to delete the UIView instance. |
OnPostDraw (const Rect &invalidatedArea) |
|
ReMeasure () |
|
Invalidate () |
|
InvalidateRect (const Rect &invalidatedArea) |
|
OnLongPressEvent (const LongPressEvent &event) |
|
OnDragStartEvent (const DragEvent &event) |
|
OnDragEvent (const DragEvent &event) |
|
OnDragEndEvent (const DragEvent &event) |
|
OnClickEvent (const ClickEvent &event) |
|
OnPressEvent (const PressEvent &event) |
|
OnReleaseEvent (const ReleaseEvent &event) |
|
OnCancelEvent (const CancelEvent &event) |
|
SetOnDragListener (OnDragListener *onDragListener) |
|
SetOnClickListener (OnClickListener *onClickListener) |
|
SetOnLongPressListener (OnLongPressListener *onLongPressListener) |
|
SetOnTouchListener (OnTouchListener *onTouchListener) |
|
GetTargetView (const Point &point, UIView **last) |
|
GetParent () const |
UIView * |
SetNextSibling (UIView *sibling) |
|
GetNextSibling () const |
UIView * |
IsVisible () const |
|
SetTouchable (bool touch) |
|
IsTouchable () const |
|
SetDraggable (bool draggable) |
|
IsDraggable () const |
|
SetDragParentInstead (bool dragParentInstead) |
Sets whether to transfer the drag event to the parent view for processing when the view is being dragged. |
IsDragParentInstead () const |
Obtains whether the view transfers a drag event to the parent view for processing. |
GetRect () const |
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. |
GetVisibleRect () const |
|
GetMaskedRect () const |
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. |
GetOrigRect () const |
|
virtual Rect Obtains the content of the absolute rectangle area of the view. This area excludes padding. |
|
GetRelativeRect () const |
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. |
ResizeVisibleArea (int16_t x, int16_t y, int16_t width, int16_t height) |
Adjusts the size of the visible area. This operation may affect the final display size. |
GetWidth () |
|
GetHeight () |
|
GetX () const |
|
GetY () const |
|
IsViewGroup () const |
|
SetIntercept (bool isIntercept) |
Sets whether to intercept the drag event. If intercepted, the view does not transfer the drag event to the parent view after local processing. |
SetTransformMap (const TransformMap &transMap) |
|
GetChildById (const char *id) const |
virtual UIView * |
SetViewId (const char *id) |
|
GetViewId () const |
|
SetViewIndex (int16_t index) |
|
GetViewIndex () const |
|
GetViewType () const |
|
LayoutChildren (bool neeInvalidate=false) |
Lays out all child views according to the preset arrangement mode. |
LayoutCenterOfParent (int16_t xOffSet=0, int16_t yOffset=0) |
|
LayoutLeftOfParent (int16_t offset=0) |
|
LayoutRightOfParent (int16_t offset=0) |
|
LayoutTopOfParent (int16_t offset=0) |
|
LayoutBottomOfParent (int16_t offset=0) |
|
AlignLeftToSibling (const char *id, int16_t offset=0) |
|
AlignRightToSibling (const char *id, int16_t offset=0) |
|
AlignTopToSibling (const char *id, int16_t offset=0) |
|
AlignBottomToSibling (const char *id, int16_t offset=0) |
|
AlignHorCenterToSibling (const char *id, int16_t offset=0) |
Aligns the view with the center of a sibling view in the x-axis. |
AlignVerCenterToSibling (const char *id, int16_t offset=0) |
Aligns the view with the center of a sibling view in the y-axis. |
LayoutLeftToSibling (const char *id, int16_t offset=0) |
|
LayoutRightToSibling (const char *id, int16_t offset=0) |
|
LayoutTopToSibling (const char *id, int16_t offset=0) |
|
LayoutBottomToSibling (const char *id, int16_t offset=0) |
|
SetStyle (uint8_t key, int64_t value) |
|
GetStyle (uint8_t key) const |
|
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. |
operator new (size_t size) |
|
operator delete (void *p) |