生命周期發(fā)生變化時觸發(fā)相應(yīng)回調(diào)

導(dǎo)入模塊

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

AbilityLifecycleCallback.onAbilityCreate

onAbilityCreate(ability: UIAbility): void;

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在ability創(chuàng)建時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onAbilityCreate(ability){
        console.log('AbilityLifecycleCallback onAbilityCreate.');  
    }
};

AbilityLifecycleCallback.onWindowStageCreate

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

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在windowStage創(chuàng)建時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onWindowStageCreate(ability, windowStage){
        console.log('AbilityLifecycleCallback onWindowStageCreate.');
    }
};

AbilityLifecycleCallback.onWindowStageActive

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

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在windowStage獲焦時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onWindowStageActive(ability, windowStage){
        console.log('AbilityLifecycleCallback onWindowStageActive.');
    }
};

AbilityLifecycleCallback.onWindowStageInactive

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

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在windowStage失焦時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onWindowStageInactive(ability, windowStage){
        console.log('AbilityLifecycleCallback onWindowStageInactive.');
    }
};

AbilityLifecycleCallback.onWindowStageDestroy

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

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在windowStage銷毀時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onWindowStageDestroy(ability, windowStage){
        console.log('AbilityLifecycleCallback onWindowStageDestroy.');
    }
};

AbilityLifecycleCallback.onAbilityDestroy

onAbilityDestroy(ability: UIAbility): void;

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在ability銷毀時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onAbilityDestroy(ability){
        console.log('AbilityLifecycleCallback onAbilityDestroy.');
    }
};

AbilityLifecycleCallback.onAbilityForeground

onAbilityForeground(ability: UIAbility): void;

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在ability的狀態(tài)從后臺轉(zhuǎn)到前臺時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onAbilityForeground(ability){
        console.log('AbilityLifecycleCallback onAbilityForeground.');
    }
};

AbilityLifecycleCallback.onAbilityBackground

onAbilityBackground(ability: UIAbility): void;

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在ability的狀態(tài)從前臺轉(zhuǎn)到后臺時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onAbilityBackground(ability){
        console.log('AbilityLifecycleCallback onAbilityBackground.');
    }
};

AbilityLifecycleCallback.onAbilityContinue

onAbilityContinue(ability: UIAbility): void;

注冊監(jiān)聽應(yīng)用上下文的生命周期后，在ability遷移時觸發(fā)回調(diào)。

系統(tǒng)能力：SystemCapability.Ability.AbilityRuntime.AbilityCore

參數(shù)：

示例：

let abilityLifecycleCallback =  {
    onAbilityContinue(ability){
        console.log('AbilityLifecycleCallback onAbilityContinue.');
    }
};

AbilityLifecycleCallback使用

示例：

MyFirstAbility.ts

import AbilityLifecycleCallback from '@ohos.app.ability.AbilityLifecycleCallback';
import AbilityStage from '@ohos.app.ability.AbilityStage';
import UIAbility from '@ohos.app.ability.UIAbility';

// 聲明ability生命周期回調(diào)，需配置所有回調(diào)后才可以在applicationContext注冊
let abilityLifecycleCallback = {
    onAbilityCreate(ability){
        console.log('AbilityLifecycleCallback onAbilityCreate.');  
    },
    onWindowStageCreate(ability, windowStage){
        console.log('AbilityLifecycleCallback onWindowStageCreate.');
    },
    onWindowStageActive(ability, windowStage){
        console.log('AbilityLifecycleCallback onWindowStageActive.');
    },
    onWindowStageInactive(ability, windowStage){
        console.log('AbilityLifecycleCallback onWindowStageInactive.');
    },
    onWindowStageDestroy(ability, windowStage){
        console.log('AbilityLifecycleCallback onWindowStageDestroy.');
    },
    onAbilityDestroy(ability){
        console.log('AbilityLifecycleCallback onAbilityDestroy.');
    },
    onAbilityForeground(ability){
        console.log('AbilityLifecycleCallback onAbilityForeground.');
    },
    onAbilityBackground(ability){
        console.log('AbilityLifecycleCallback onAbilityBackground.');
    },
    onAbilityContinue(ability){
        console.log('AbilityLifecycleCallback onAbilityContinue.');
    }
};

export default class MyFirstAbility extends UIAbility {
    onCreate() {
        console.log('MyAbilityStage onCreate');
        // 1.通過context屬性獲取applicationContext
        let applicationContext = this.context.getApplicationContext();
        // 2.通過applicationContext注冊監(jiān)聽應(yīng)用內(nèi)生命周期
        try {
            globalThis.lifecycleId = applicationContext.on('abilityLifecycle', abilityLifecycleCallback);
            console.log('registerAbilityLifecycleCallback lifecycleId: ${globalThis.lifecycleId}');
        } catch (paramError) {
            console.log('error: ' + paramError.code + ' ,' + paramError.message);
        }
    }
}

MySecondAbility.ts

import UIAbility from '@ohos.app.ability.UIAbility';

export default class MySecondAbility extends UIAbility {
    onDestroy() {
        let applicationContext = this.context.getApplicationContext();
        // 3.通過applicationContext注銷監(jiān)聽應(yīng)用內(nèi)生命周期
        applicationContext.off('abilityLifecycle', globalThis.lifecycleId, (error) => {
            if (error.code != 0) {
                console.log('unregisterAbilityLifecycleCallback failed, error: ' + JSON.stringify(error));
            } else {
                console.log('unregisterAbilityLifecycleCallback success.');
            }
        });
    }
}