Android多线程--HandlerThread用法

最新推荐文章于 2022-07-26 17:10:25 发布

最新推荐文章于 2022-07-26 17:10:25 发布 · 123 阅读

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#移动开发

本文介绍了一个使用HandlerThread和Handler实现线程间通信的例子。在Android应用中创建了一个名为HandlerThreadActivity的Activity，通过HandlerThread启动后台线程并利用Handler发送消息到该线程，演示了如何在主线程与子线程间传递数据。

package com.proper;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;

public class HandlerThreadActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
System.out.println("线程Id"+Thread.currentThread().getId());
HandlerThread handlerThread=new HandlerThread("handlerThread");
handlerThread.start();
MyHandler myHandler=new MyHandler(handlerThread.getLooper());
Message msg=myHandler.obtainMessage();
Bundle bundle=new Bundle();
bundle.putInt("age", 24);
bundle.putString("name", "Robin");
msg.setData(bundle);
msg.sendToTarget();
}
class MyHandler extends Handler{

public MyHandler(){}
public MyHandler(Looper looper ){
super(looper);
}
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
Bundle bundle=msg.getData();
int age=bundle.getInt("age");
String name=bundle.getString("name");
System.out.println("线程Id"+Thread.currentThread().getId());
System.out.println("名字"+name+"-------"+"年龄"+age);

}

}
}