@@ -333,7 +333,7 @@ For non-custom navigation bars, tabs and tab content are linked by default. For
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@@ -333,7 +333,7 @@ For non-custom navigation bars, tabs and tab content are linked by default. For
**Figure 11** Lack of linkage between tabs and tab content
**Figure 11** Lack of linkage between tabs and tab content
To manually switch between the tabs, use the **onChange** API provided by the **\<Tabs>** component to listen for the index change and pass the index of the active tab to **currentIndex**.
To manually switch between the tabs, use the **onChange** API provided by the **\<Tabs>** component to listen for the index change and pass the index of the active tab to **currentIndex**.
@@ -22,7 +22,7 @@ ArkUI is a UI development framework for building OpenHarmony applications. It pr
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@@ -22,7 +22,7 @@ ArkUI is a UI development framework for building OpenHarmony applications. It pr
-**Platform API channel**: ArkUI provides an API extension mechanism through which platform capabilities are encapsulated to produce JavaScript (JS) APIs in a unified style.
-**Platform API channel**: ArkUI provides an API extension mechanism through which platform capabilities are encapsulated to produce JavaScript (JS) APIs in a unified style.
-**Two development paradigms**: ArkUI comes with two development paradigms: [ArkTS-based declarative development paradigm](./ui-ts-overview.md)(declarative development paradigm for short) and [JS-compatible web-like development paradigm](./ui-js-overview.md)(web-like development paradigm for short). You can choose whichever development paradigm that aligns with your practice.
-**Two development paradigms**: ArkUI comes with two development paradigms: [ArkTS-based declarative development paradigm](arkts-ui-development-overview.md)(declarative development paradigm for short) and [JS-compatible web-like development paradigm](../ui/ui-js-overview.md)(web-like development paradigm for short). You can choose whichever development paradigm that aligns with your practice.
| Development Paradigm | Description | Applicable To | Target Audience |
| Development Paradigm | Description | Applicable To | Target Audience |
The following APIs of the **xcomponent** component of the ArkUI subsystem are changed:
-**getXComponentSurfaceId** and **setXComponentSurfaceSize**: The **@systemapi** tag is removed.
-**getXComponentSurfaceId**, **getXComponentContext**, and **setXComponentSurfaceSize**: The return value types are specified.
You need to adapt your applications based on the following information.
**Change Impacts**
Released JS APIs are affected. The application needs to adapt these APIs so that it can be properly compiled in the SDK environment of the new version.
**Key API/Component Changes**
-**getXComponentSurfaceId**: is changed to a public API, with its return value type specified as string.
-**setXComponentSurfaceSize**: is changed to a public API, with its return value type specified as void.
-**getXComponentContext**: has its return value type specified as object.
**Adaptation Guide**
Startup rules for different scenarios are as follows:
Adaptions to be made:
-**getXComponentSurfaceId**
- OpenHarmony 3.2 Beta3 rules:
- System API
- No specified return value
- OpenHarmony 3.2 Beta4 rules:
- Public API
- Return value type specified as string
- You need to process the return value as a string.
-**setXComponentSurfaceSize**
- OpenHarmony 3.2 Beta3 rules:
- System API
- No specified return value
- OpenHarmony 3.2 Beta4 rules:
- Public API
- Return value type specified as void
- You need to process the return value as a void.
-**getXComponentContext**
- OpenHarmony 3.2 Beta3 rules:
- No specified return value
- OpenHarmony 3.2 Beta4 rules:
- Return value type specified as object
- You need to process the return value as an object.
## cl.arkui.2 Change of Styles of Popup Component and APIs
The styles of the **alertDialog**, **actionSheet**, and **customDialog** components, as well as the **prompt** and **promptAction** APIs were changed. Specifically speaking:
The popup background blurring effect is added to **promptAction.showDialog**, **promptAction.showActionMenu**, **alertDialog**, **actionSheet**, and **customDialog**.
**Change Impacts**
The popup background blurring effect is set by default.
**Key API/Component Changes**
APIs: **promptAction.showDialog** and **promptAction.showActionMenu;**
Components: **alertDialog**, **actionSheet**, and **customDialog**
**Adaptation Guide**
No adaptation is required.
## cl.arkui.3 Supplementation of the Initialization Mode and Restriction Verification Scenarios of Custom Components' Member Variables
For details, see [Restrictions and Extensions](../../../application-dev/quick-start/arkts-restrictions-and-extensions.md).
**Change Impacts**
If custom components' member variables are initialized or assigned with values not according to the document specifications, an error will be reported during compilation.
**Key API/Component Changes**
N/A
**Adaptation Guide**
Make modification according to specifications in the above document.
## cl.arkui.4 Supplementation of Verification Scenarios of Value Assignment Restrictions on Member Variables of Custom Parent Components and Child Components
For details, see [Restrictions and Extensions](../../../application-dev/quick-start/arkts-restrictions-and-extensions.md).
**Change Impacts**
If member variables of the parent component or child component are initialized not according to the document specifications, an error will be reported during compilation.
**Key API/Component Changes**
N/A
**Adaptation Guide**
Make modification according to specifications in the above document, using other decorators or normal member variables for value assignment.
## cl.arkui.5 Supplementation of Verification for a Single Subcomponent
Verification for a single subcomponent is enabled for the following components: **Button**, **FlowItem**, **GridItem**, **GridCol**, **ListItem**, **Navigator**, **Refresh**, **RichText**, **ScrollBar**, **StepperItem**, and **TabContent**.
**Change Impacts**
If one of the preceding components contains more than one subcomponent, an error will be reported during compilation.
