1# ProcessData 2<!--Kit: Ability Kit--> 3<!--Subsystem: Ability--> 4<!--Owner: @SKY2001--> 5<!--Designer: @yzkp--> 6<!--Tester: @lixueqing513--> 7<!--Adviser: @huipeizi--> 8 9The module defines process data. If a lifecycle change listener is registered by calling [on](js-apis-app-ability-appManager.md#appmanageronapplicationstate14), the **onProcessCreated** callback in [ApplicationStateObserver](js-apis-inner-application-applicationStateObserver.md) is invoked when the lifecycle of an application or ability changes. 10 11> **NOTE** 12> 13> The initial APIs of this module are supported since API version 14. Newly added APIs will be marked with a superscript to indicate their earliest API version. 14 15## Modules to Import 16 17```ts 18import { appManager } from '@kit.AbilityKit'; 19``` 20 21## Properties 22 23**System capability**: SystemCapability.Ability.AbilityRuntime.Core 24 25| Name | Type | Read-Only| Optional| Description | 26| ------------| ---------| ---- | ---- | ------------------------- | 27| pid | number | No | No| Process ID. | 28| bundleName | string | No | No| Bundle name of the application. | 29| uid | number | No | No|UID of the application. | 30| isContinuousTask | boolean | No | No| Whether the task is a continuous task. **true** if yes, **false** otherwise. | 31| isKeepAlive | boolean | No | No|Whether the process is a resident task. **true** if yes, **false** otherwise. | 32| state | number | No | No|Application state. The options are as follows:<br>**0**: newly created.<br>**1**: ready.<br>**2**: running in the foreground.<br>**4**: running in the background.<br>**5**: terminated. | 33 34**Example** 35```ts 36import { appManager } from '@kit.AbilityKit'; 37 38let observerCode = appManager.on('applicationState', { 39 onForegroundApplicationChanged(appStateData) { 40 console.log(`onForegroundApplicationChanged, appStateData: ${JSON.stringify(appStateData)}.`); 41 }, 42 onAbilityStateChanged(abilityStateData) { 43 console.log(`onAbilityStateChanged, abilityStateData: ${JSON.stringify(abilityStateData)}.`); 44 }, 45 onProcessCreated(processData) { 46 console.log(`onProcessCreated, processData: ${JSON.stringify(processData)}.`); 47 }, 48 onProcessDied(processData) { 49 console.log(`onProcessDied, processData: ${JSON.stringify(processData)}.`); 50 }, 51 onProcessStateChanged(processData) { 52 console.log(`onProcessStateChanged, processData.pid : ${JSON.stringify(processData.pid)}.`); 53 console.log(`onProcessStateChanged, processData.bundleName : ${JSON.stringify(processData.bundleName)}.`); 54 console.log(`onProcessStateChanged, processData.uid : ${JSON.stringify(processData.uid)}.`); 55 console.log(`onProcessStateChanged, processData.isContinuousTask : ${JSON.stringify(processData.isContinuousTask)}.`); 56 console.log(`onProcessStateChanged, processData.isKeepAlive : ${JSON.stringify(processData.isKeepAlive)}.`); 57 }, 58 onAppStarted(appStateData) { 59 console.log(`onAppStarted, appStateData: ${JSON.stringify(appStateData)}.`); 60 }, 61 onAppStopped(appStateData) { 62 console.log(`onAppStopped, appStateData: ${JSON.stringify(appStateData)}.`); 63 } 64}); 65``` 66