HarmonyOS/OpenHarmony应用开发-Stage模型ArkTS语言AbilityLifecycleCallback_openharmony onabilitycreate

AbilityLifecycleCallback模块提供应用上下文ApplicationContext的生命周期监听方法的回调类的能力。

说明:

模块首批接口从API version 9 开始支持。模块接口仅可在Stage模型下使用。

导入模块:

import AbilityLifecycleCallback from "@ohos.app.ability.AbilityLifecycleCallback";

属性：

AbilityLifecycleCallback.onAbilityCreate

onAbilityCreate(ability: UIAbility): void;

注册监听应用上下文的生命周期后，在ability创建时触发回调。

AbilityLifecycleCallback.onWindowStageCreate

onWindowStageCreate(ability: UIAbility, windowStage: window.WindowStage): void;

注册监听应用上下文的生命周期后，在windowStage创建时触发回调。

AbilityLifecycleCallback.onWindowStageActive

onWindowStageActive(ability: UIAbility, windowStage: window.WindowStage): void;

注册监听应用上下文的生命周期后，在windowStage获焦时触发回调。

AbilityLifecycleCallback.onWindowStageInactive

onWindowStageInactive(ability: UIAbility, windowStage: window.WindowStage): void;

注册监听应用上下文的生命周期后，在windowStage失焦时触发回调。

AbilityLifecycleCallback.onWindowStageDestroy

onWindowStageDestroy(ability: UIAbility, windowStage: window.WindowStage): void;

注册监听应用上下文的生命周期后，在windowStage销毁时触发回调。

AbilityLifecycleCallback.onAbilityDestroy

onAbilityDestroy(ability: UIAbility): void;

注册监听应用上下文的生命周期后，在ability销毁时触发回调。

AbilityLifecycleCallback.onAbilityForeground

onAbilityForeground(ability: UIAbility): void;

注册监听应用上下文的生命周期后，在ability的状态从后台转到前台时触发回调。

AbilityLifecycleCallback.onAbilityBackground

onAbilityBackground(ability: UIAbility): void;

注册监听应用上下文的生命周期后，在ability的状态从前台转到后台时触发回调。

AbilityLifecycleCallback.onAbilityContinue

onAbilityContinue(ability: UIAbility): void;

注册监听应用上下文的生命周期后，在ability迁移时触发回调。

接口示例：

import UIAbility from "@ohos.app.ability.UIAbility";
 
let lifecycleid;
export default class LifecycleAbility extends UIAbility {
  onCreate() {
    console.log("MyAbility onCreate")
    let AbilityLifecycleCallback  =  {
      onAbilityCreate(ability){
        console.log("AbilityLifecycleCallback onAbilityCreate ability:" + JSON.stringify(ability));
      },
      onWindowStageCreate(ability, windowStage){
        console.log("AbilityLifecycleCallback onWindowStageCreate ability:" + JSON.stringify(ability));
        console.log("AbilityLifecycleCallback onWindowStageCreate windowStage:" + JSON.stringify(windowStage));
      },
      onWindowStageActive(ability, windowStage){
        console.log("AbilityLifecycleCallback onWindowStageActive ability:" + JSON.stringify(ability));
        console.log("AbilityLifecycleCallback onWindowStageActive windowStage:" + JSON.stringify(windowStage));
      },
      onWindowStageInactive(ability, windowStage){
        console.log("AbilityLifecycleCallback onWindowStageInactive ability:" + JSON.stringify(ability));
        console.log("AbilityLifecycleCallback onWindowStageInactive windowStage:" + JSON.stringify(windowStage));
      },
      onWindowStageDestroy(ability, windowStage){
        console.log("AbilityLifecycleCallback onWindowStageDestroy ability:" + JSON.stringify(ability));
        console.log("AbilityLifecycleCallback onWindowStageDestroy windowStage:" + JSON.stringify(windowStage));
      },
      onAbilityDestroy(ability){
        console.log("AbilityLifecycleCallback onAbilityDestroy ability:" + JSON.stringify(ability));
      },
      onAbilityForeground(ability){
        console.log("AbilityLifecycleCallback onAbilityForeground ability:" + JSON.stringify(ability));
      },
      onAbilityBackground(ability){
        console.log("AbilityLifecycleCallback onAbilityBackground ability:" + JSON.stringify(ability));
      },
      onAbilityContinue(ability){
        console.log("AbilityLifecycleCallback onAbilityContinue ability:" + JSON.stringify(ability));
      }
    }
    // 1.通过context属性获取applicationContext
    let applicationContext = this.context.getApplicationContext();
    // 2.通过applicationContext注册监听应用内生命周期
    lifecycleid = applicationContext.on("abilityLifecycle", AbilityLifecycleCallback);
    console.log("registerAbilityLifecycleCallback number: " + JSON.stringify(lifecycleid));
  }
  onDestroy() {
    let applicationContext = this.context.getApplicationContext();
    applicationContext.off("abilityLifecycle", lifecycleid, (error, data) => {
      console.log("unregisterAbilityLifecycleCallback success, err: " + JSON.stringify(error));
    });
  }
}