ProcessData


ProcessData

进程数据的对象定义。使用接口registerApplicationStateObserver注册生命周期变化监听后,当应用或组件的生命周期变化时,系统通过ApplicationStateObserver的onProcessCreated等方法回调给开发者。

系统能力:以下各项对应的系统能力均为SystemCapability.Ability.AbilityRuntime.Core

系统API:该接口为系统接口,三方应用不支持调用。

名称 类型 可读 可写 说明
pid8+ number 进程ID。
bundleName8+ string 应用包名。
uid8+ number 应用的uid。
isContinuousTask9+ boolean 是否为长时任务,true表示是,false表示不是
isKeepAlive9+ boolean 是否为常驻进程,true表示是,false表示不是
state9+ number 应用的状态,取值及对应的状态为:0(刚创建),2(前台),4(后台),5(已终止)。

示例:

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

let applicationStateObserver = {
    onForegroundApplicationChanged(appStateData) {
        console.log('onForegroundApplicationChanged appStateData: ${JSON.stringify(appStateData)}');
    },
    onAbilityStateChanged(abilityStateData) {
        console.log('onAbilityStateChanged onAbilityStateChanged: ${JSON.stringify(abilityStateData)}');
    },
    onProcessCreated(processData) {
        console.log('onProcessCreated onProcessCreated: ${JSON.stringify(processData)}');
    },
    onProcessDied(processData) {
        console.log('onProcessDied onProcessDied: ${JSON.stringify(processData)}');
    },
    onProcessStateChanged(processData) {
        console.log('onProcessStateChanged processData.pid : ${JSON.stringify(processData.pid)}');
        console.log('onProcessStateChanged processData.bundleName : ${JSON.stringify(processData.bundleName)}');
        console.log('onProcessStateChanged processData.uid : ${JSON.stringify(processData.uid)}');
        console.log('onProcessStateChanged processData.isContinuousTask : ${JSON.stringify(processData.isContinuousTask)}');
        console.log('onProcessStateChanged processData.isKeepAlive : ${JSON.stringify(processData.isKeepAlive)}');
    }
};
let observerCode = appManager.registerApplicationStateObserver(applicationStateObserver);
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