目录

How do I use the lifecycle functions of AbilityStage?

The default project of DevEco Studio does not contain AbilityStage. To use AbilityStage, you can manually create an AbilityStage file. The procedure is as follows:

  1. In the ets directory of the Module project, right-click and choose New > Directory to create a directory named myabilitystage.
  2. In the myabilitystage directory, right-click and choose New > ArkTS File to create a file named MyAbilityStage.ets.
  3. Open the MyAbilityStage.ets file, import the dependency package of AbilityStage, customize a class to inherit from AbilityStage, and add the required lifecycle callbacks. The following code snippet adds the onCreate() lifecycle callback.
    import { AbilityStage, Want } from '@kit.AbilityKit';

export default class MyAbilityStage extends AbilityStage {
  onCreate(): void {
    // When the HAP of the application is first loaded, initialize the operation for the module
  }

  onAcceptWant(want: Want): string {
    // Triggered only when UIAbility is configured in specified startup mode
    return 'MyAbilityStage';
  }
}

  4. In the module.json5 file, set srcEntry to specify the code path of the module as the entry for loading the HAP.
    {
  "module": {
    "name": "entry",
    "type": "entry",
    "srcEntry": "./ets/myabilitystage/MyAbilityStage.ets",
    // ...
  }
}

An AbilityStage has the onCreate() and onDestroy() lifecycle callbacks, and the onAcceptWant(), onConfigurationUpdate(), and onMemoryLevel() event callbacks.