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鸿蒙启动框架配置文件（StartUpTask)

news 来源：原创 2024/9/20 11:38:22

{"startupTasks": [//有哪些任务{"name": "StartupTask_001",//任务名字"srcEntry": "./ets/startup/StartupTask_001.ets",//任务的文件路径"runOnThread": "taskpool",//运行在哪个现成，有两个选择，任务池或者主线程"waitOnMainThread": false //要不要主线程等待该任务，一般是false},{"name": "StartupTask_002","srcEntry": "./ets/startup/StartupTask_002.ets","dependencies": [//是否依赖其它的任务"StartupTask_001"],"runOnThread": "taskpool","waitOnMainThread": false},{"name": "StartupTask_003","srcEntry": "./ets/startup/StartupTask_003.ets","dependencies": ["StartupTask_001"],"runOnThread": "taskpool","waitOnMainThread": false},{"name": "StartupTask_004","srcEntry": "./ets/startup/StartupTask_004.ets","dependencies": ["StartupTask_002"],"runOnThread": "taskpool","waitOnMainThread": false},{"name": "StartupTask_005","srcEntry": "./ets/startup/StartupTask_005.ets","dependencies": ["StartupTask_003","StartupTask_004"],"runOnThread": "taskpool","waitOnMainThread": false},{"name": "StartupTask_006","srcEntry": "./ets/startup/StartupTask_006.ets","runOnThread": "mainThread","waitOnMainThread": false,"excludeFromAutoStart": true},{"name": "StartupTask_007","srcEntry": "./ets/startup/StartupTask_007.ets","dependencies": ["StartupTask_006"],"runOnThread": "mainThread","waitOnMainThread": false,"excludeFromAutoStart": true  //false表示系统加载的时候，自动执行任务，true表示可以在代码中任何地方执行}],"configEntry": "./ets/startup/MyStartupConfigEntry.ets"
}举例：在Ability中执行任务6 和 7
export default class EntryAbility extends UIAbility {onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');let startParams = ['StartupTask_006', 'StartupTask_007'];try {startupManager.run(startParams).then(() => {console.log('StartupTest startupManager run then, startParams = ');}).catch((error: BusinessError) => {console.info("StartupTest promise catch error, error = " + JSON.stringify(error));console.info("StartupTest promise catch error, startParams = "+ JSON.stringify(startParams));})} catch (error) {let errMsg = JSON.stringify(error);let errCode: number = error.code;console.log('Startup catch error , errCode= ' + errCode);console.log('Startup catch error ,error= ' + errMsg);}}

上面代码是startup_config的讲解，下面是如何操作
在这里插入图片描述
在如上位置增加startup_config.json,内容如下

{"startupTasks": [{"name": "StartupTask_001","srcEntry": "./ets/startup/InitMMKV.ets","runOnThread": "taskPool","waitOnMainThread": false},{"name": "StartupTask_002","srcEntry": "./ets/startup/initZRouter.ets","dependencies": ["StartupTask_001"],"runOnThread": "taskPool","waitOnMainThread": false},{"name": "StartupTask_003","srcEntry": "./ets/startup/StartupTask_003.ets","dependencies": ["StartupTask_001"],"runOnThread": "taskPool","waitOnMainThread": false},{"name": "StartupTask_004","srcEntry": "./ets/startup/StartupTask_004.ets","dependencies": ["StartupTask_002"],"runOnThread": "taskPool","waitOnMainThread": false},{"name": "StartupTask_005","srcEntry": "./ets/startup/StartupTask_005.ets","dependencies": ["StartupTask_003","StartupTask_004"],"runOnThread": "taskPool","waitOnMainThread": false},{"name": "StartupTask_006","srcEntry": "./ets/startup/StartupTask_006.ets","runOnThread": "mainThread","waitOnMainThread": false,"excludeFromAutoStart": true},{"name": "StartupTask_007","srcEntry": "./ets/startup/StartupTask_007.ets","dependencies": ["StartupTask_006"],"runOnThread": "mainThread","waitOnMainThread": false,"excludeFromAutoStart": true}],"configEntry": "./ets/startup/StartUpConfigEntry.ets"
}

StartUpConfigEntry.ets文件是配置监听，监听任务的执行，代码如下

//配置监听，监听任务的执行
import { StartupConfig, StartupConfigEntry, StartupListener } from '@kit.AbilityKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { BusinessError } from '@kit.BasicServicesKit';export default class StartUpConfigEntry extends StartupConfigEntry {onConfig() {hilog.info(0x0000, 'testTag', `onConfig`);//任务执行完成的回调，监听所有的组let onCompletedCallback = (error: BusinessError<void>) => {hilog.info(0x0000, 'testTag', `onCompletedCallback`);if (error) {hilog.info(0x0000, 'testTag', 'onCompletedCallback: %{public}d, message: %{public}s', error.code, error.message);} else {hilog.info(0x0000, 'testTag', `onCompletedCallback: success.`);}};let startupListener: StartupListener = {'onCompleted': onCompletedCallback};let config: StartupConfig = {'timeoutMs': 10000,//10秒钟之内执行失败，进入error回调方法'startupListener': startupListener};return config;}
}

startup文件夹下的其余的文件就是我们配置的启动任务，我们选择其中的两个，

import { StartupTask, common } from '@kit.AbilityKit';
import { hilog } from '@kit.PerformanceAnalysisKit';/*** 启动任务。需要继承StartupTask*/
@Sendable
export default class StartupTask_001 extends StartupTask {constructor() {super();}async init(context: common.AbilityStageContext) {console.info('testTagStartUP: ', '任务一：实例化MMKV');return 'initMMKV';//在下一个任务的onDependencyCompleted回调方法会传入StartupTask_001}onDependencyCompleted(dependence: string, result: Object): void {hilog.info(0x0000, 'testTagStartUP', 'StartupTask_001 onDependencyCompleted, dependence: %{public}s, result: %{public}s',dependence, JSON.stringify(result));}
}

在init方法里初始化第三方SDK

import { StartupTask, common } from '@kit.AbilityKit';
import { hilog } from '@kit.PerformanceAnalysisKit';@Sendable
export default class StartupTask_007 extends StartupTask {constructor() {super();}async init(context: common.AbilityStageContext) {hilog.info(0x0000, 'testTagStartUP', 'StartupTask_007 init.');return 'StartupTask_007';}onDependencyCompleted(dependence: string, result: Object): void {hilog.info(0x0000, 'testTagStartUP', 'StartupTask_007 onDependencyCompleted, dependence: %{public}s, result: %{public}s',dependence, JSON.stringify(result));}
}

在module.json5中配置(见下图)
在这里插入图片描述
OK大功告成。