#鸿蒙通关秘籍#使用Worker处理关联同步任务的有效方法

在处理需要同一对象调度的关联同步任务时，Worker是一个有效的选择。以下是实现方法：

1. 在主线程中创建Worker对象：定义并接收Worker线程返回的消息。

   typescript @Entry @Component struct Index { @State message: string = 'Hello World';

   build() { Row() { Column() { Text(this.message) .fontSize(50) .fontWeight(FontWeight.Bold) .onClick(() => { let w: worker.ThreadWorker = new worker.ThreadWorker('entry/ets/workers/MyWorker.ts'); w.onmessage = (): void => { // Handle messages from Worker }; w.onerror = (): void => { // Handle errors from Worker }; w.postMessage({'type': 0, 'data': 'data'}); w.postMessage({'type': 1}); w.terminate(); }); }.width('100%').height('100%'); } } }

2. 在Worker线程中进行逻辑处理：绑定Worker对象并处理同步任务逻辑。

   typescript import { worker, ThreadWorkerGlobalScope, MessageEvents } from '@kit.ArkTS'; import Handle from './handle';

   let workerPort: ThreadWorkerGlobalScope = worker.workerPort; let handler: Handle = new Handle();

   workerPort.onmessage = (e: MessageEvents): void => { switch (e.data.type as number) { case 0: handler.syncSet(e.data.data); workerPort.postMessage('success set'); break; case 1: handler.syncGet(); workerPort.postMessage('success get'); break; } };