如何在page中获取UIAbility生命周期做自定义逻辑

import UIAbility from '@ohos.app.ability.UIAbility'; 
import AbilityLifecycleCallback from '@ohos.app.ability.AbilityLifecycleCallback'; 
 
let lifecycleId: number; 
export default class EntryAbility extends UIAbility { 
  onCreate() { 
    console.log('MyAbility onCreate'); 
    let AbilityLifecycleCallback: AbilityLifecycleCallback = { 
      onAbilityCreate(ability) { 
        // ... 
      }, 
      onWindowStageCreate(ability, windowStage) { 
        // ... 
      }, 
      onWindowStageActive(ability, windowStage) { 
        // ... 
      }, 
      onWindowStageInactive(ability, windowStage) { 
        // ... 
      }, 
      onWindowStageDestroy(ability, windowStage) { 
        // ... 
      }, 
      onAbilityDestroy(ability) { 
        // ... 
      }, 
      onAbilityForeground(ability) { 
        // ... 
      }, 
      onAbilityBackground(ability) { 
        // ... 
      }, 
      onAbilityContinue(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 lifecycleId: ${lifecycleId}`); 
  } 
}
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