-[Creating an Accessibility Extension Service](#creating-an-accessibility-extension-service)
-[Creating a Project](#creating-a-project)
-[Creating an AccessibilityExtAbility File](#creating-an-accessibilityextability-file)
-[Processing an Accessibility Event](#processing-an-accessibility-event)
-[Declaring Capabilities of Accessibility Extension Services](#declaring-capabilities-of-accessibility-extension-services)
-[Enabling a Custom Accessibility Extension Service](#enabling-a-custom-accessibility-extension-service)
## Creating an Accessibility Extension Service
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@@ -79,13 +82,13 @@ You can also process physical key events in the accessibility extension service.
## Declaring Capabilities of Accessibility Extension Services
After developing the custom logic for an accessibility extension service, you must add the configuration information of the service to the corresponding module-level **module.json5** file in the project directory. In the file, the **srcEntrance** tag indicates the path to the accessibility extension service. Make sure the value of the **type** tag is fixed at **accessibility**. Otherwise, the connection to the service will fail.
After developing the custom logic for an accessibility extension service, you must add the configuration information of the service to the corresponding module-level **module.json5** file in the project directory. In the file, the **srcEntry** tag indicates the path to the accessibility extension service. Make sure the value of the **type** tag is fixed at **accessibility**. Otherwise, the connection to the service will fail.
@@ -60,15 +60,15 @@ To implement EnterpriseAdminExtensionAbility, you need to activate the device ad
};
```
4. Register **ServiceExtensionAbility** in the [**module.json5**](../quick-start/module-configuration-file.md) file corresponding to the project module. Set **type** to **enterpriseAdmin** and **srcEntrance** to the path of the ExtensionAbility code.
4. Register **ServiceExtensionAbility** in the [**module.json5**](../quick-start/module-configuration-file.md) file corresponding to the project module. Set **type** to **enterpriseAdmin** and **srcEntry** to the path of the ExtensionAbility code.
@@ -54,7 +54,7 @@ The minimum template contains four files: **KeyboardController.ts**, **InputMeth
1.**InputMethodService.ts** file:
In this file, add the dependency package for importing InputMethodExtensionAbility. Customize a class that inherits from InputMethodExtensionAbility and add the required lifecycle callbacks.
In the **InputMethodService.ts** file, add the dependency package for importing InputMethodExtensionAbility. Customize a class that inherits from InputMethodExtensionAbility and add the required lifecycle callbacks.
@@ -342,7 +342,7 @@ The minimum template contains four files: **KeyboardController.ts**, **InputMeth
}
```
Register the InputMethodExtensionAbility in the [module.json5 file](../quick-start/module-configuration-file.md) corresponding to the target module. Set **type** to **"inputMethod"** and **srcEntrance** to the code path of the InputMethodExtensionAbility component.
Register the InputMethodExtensionAbility in the [module.json5 file](../quick-start/module-configuration-file.md) corresponding to the target module. Set **type** to **"inputMethod"** and **srcEntry** to the code path of the InputMethodExtensionAbility component.
```ts
{
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@@ -353,9 +353,9 @@ The minimum template contains four files: **KeyboardController.ts**, **InputMeth
| getApp | Function | Obtains the data object exposed in **app.js** from the page JS file. This API works globally.|
> **NOTE**
>
> The application object is global data and occupies JS memory before the application exits. Although it facilitates data sharing between different pages, exercise caution when using it on small-system devices, whose memory is small. If they are overused, exceptions may occur due to insufficient memory when the application displays complex pages.
The following is an example:
Declare the application object in **app.js**.
```javascript
// app.js
exportdefault{
data:{
test:"by getAPP"
},
onCreate(){
console.info('Application onCreate');
},
onDestroy(){
console.info('Application onDestroy');
},
};
```
Access the application object on a specific page.
```javascript
// index.js
exportdefault{
data:{
title:""
},
onInit(){
if(typeofgetApp!=='undefined'){
varappData=getApp().data;
if(typeofappData!=='undefined'){
this.title=appData.name;// read from app data
}
}
},
clickHandler(){
if(typeofgetApp!=='undefined'){
varappData=getApp().data;
if(typeofappData!=='undefined'){
appData.name=this.title;// write to app data
}
}
}
}
```
> **NOTE**
>
> To ensure that the application can run properly on an earlier version that does not support **getApp**, compatibility processing must be performed in the code. That is, before using **getApp**, check whether it is available.
