1e41f4b71Sopenharmony_ci# ProcessData (系统接口) 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci进程数据的对象定义。使用接口[registerApplicationStateObserver](js-apis-application-appManager-sys.md#appmanagerregisterapplicationstateobserver)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](js-apis-inner-application-applicationStateObserver-sys.md)的onProcessCreated等方法回调给开发者。 4e41f4b71Sopenharmony_ci 5e41f4b71Sopenharmony_ci> **说明:** 6e41f4b71Sopenharmony_ci> 7e41f4b71Sopenharmony_ci> 本模块首批接口从API version 8开始支持。后续版本的新增接口,采用上角标单独标记接口的起始版本。 8e41f4b71Sopenharmony_ci> 本模块接口为系统接口。 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci## 导入模块 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci```ts 13e41f4b71Sopenharmony_ciimport { appManager } from '@kit.AbilityKit'; 14e41f4b71Sopenharmony_ci``` 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci## 属性 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Ability.AbilityRuntime.Core 19e41f4b71Sopenharmony_ci 20e41f4b71Sopenharmony_ci**系统API**:该接口为系统接口,三方应用不支持调用。 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci| 名称 | 类型 | 只读 | 必填 | 说明 | 23e41f4b71Sopenharmony_ci| ----------------------- | ---------| ---- | ---- | ------------------------- | 24e41f4b71Sopenharmony_ci| pid | number | 否 | 是 | 进程ID。 | 25e41f4b71Sopenharmony_ci| bundleName | string | 否 | 是 | 应用包名。 | 26e41f4b71Sopenharmony_ci| uid | number | 否 | 是 | 应用的uid。 | 27e41f4b71Sopenharmony_ci| isContinuousTask<sup>9+</sup> | boolean | 否 | 是 | 是否为长时任务,true表示是,false表示不是。 | 28e41f4b71Sopenharmony_ci| isKeepAlive<sup>9+</sup> | boolean | 否 | 是 | 是否为常驻进程,true表示是,false表示不是 | 29e41f4b71Sopenharmony_ci| state<sup>9+</sup> | number | 否 | 是 | 应用的状态,取值及对应的状态为:<br>0 - 刚创建,<br>1 - 准备就绪,<br>2 - 前台,<br>4 - 后台,<br>5 - 已终止。 | 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci**示例:** 32e41f4b71Sopenharmony_ci```ts 33e41f4b71Sopenharmony_ciimport { appManager } from '@kit.AbilityKit'; 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_cilet observerCode = appManager.on('applicationState', { 36e41f4b71Sopenharmony_ci onForegroundApplicationChanged(appStateData) { 37e41f4b71Sopenharmony_ci console.log(`onForegroundApplicationChanged appStateData: ${JSON.stringify(appStateData)}`); 38e41f4b71Sopenharmony_ci }, 39e41f4b71Sopenharmony_ci onAbilityStateChanged(abilityStateData) { 40e41f4b71Sopenharmony_ci console.log(`onAbilityStateChanged onAbilityStateChanged: ${JSON.stringify(abilityStateData)}`); 41e41f4b71Sopenharmony_ci }, 42e41f4b71Sopenharmony_ci onProcessCreated(processData) { 43e41f4b71Sopenharmony_ci console.log(`onProcessCreated onProcessCreated: ${JSON.stringify(processData)}`); 44e41f4b71Sopenharmony_ci }, 45e41f4b71Sopenharmony_ci onProcessDied(processData) { 46e41f4b71Sopenharmony_ci console.log(`onProcessDied onProcessDied: ${JSON.stringify(processData)}`); 47e41f4b71Sopenharmony_ci }, 48e41f4b71Sopenharmony_ci onProcessStateChanged(processData) { 49e41f4b71Sopenharmony_ci console.log(`onProcessStateChanged processData.pid : ${JSON.stringify(processData.pid)}`); 50e41f4b71Sopenharmony_ci console.log(`onProcessStateChanged processData.bundleName : ${JSON.stringify(processData.bundleName)}`); 51e41f4b71Sopenharmony_ci console.log(`onProcessStateChanged processData.uid : ${JSON.stringify(processData.uid)}`); 52e41f4b71Sopenharmony_ci console.log(`onProcessStateChanged processData.isContinuousTask : ${JSON.stringify(processData.isContinuousTask)}`); 53e41f4b71Sopenharmony_ci console.log(`onProcessStateChanged processData.isKeepAlive : ${JSON.stringify(processData.isKeepAlive)}`); 54e41f4b71Sopenharmony_ci }, 55e41f4b71Sopenharmony_ci onAppStarted(appStateData) { 56e41f4b71Sopenharmony_ci console.log(`onAppStarted appStateData: ${JSON.stringify(appStateData)}`); 57e41f4b71Sopenharmony_ci }, 58e41f4b71Sopenharmony_ci onAppStopped(appStateData) { 59e41f4b71Sopenharmony_ci console.log(`onAppStopped appStateData: ${JSON.stringify(appStateData)}`); 60e41f4b71Sopenharmony_ci } 61e41f4b71Sopenharmony_ci}); 62e41f4b71Sopenharmony_ci```