HandlerThread的使用

package com.lilin.looper;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.HandlerThread;import android.os.Looper;import android.os.Message;/** * 使用Looper来处理消息队列 *  * @author lilin * @date 2011-8-10 上午09:03:32 * @ClassName: HandlerTest2 * @Description: TODO */public class HandlerThreadDemo extends Activity {protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);System.out.println("当前Activity的ID-->" + Thread.currentThread().getId());HandlerThread handlerThread = new HandlerThread("handler_thread"); // 生成一个HandlerThread对象，实现了使用Looper来处理消息队列的功能，这个类由Android应用程序框架提供handlerThread.start();// 在使用HandlerThread的getLooper()方法之前，必须先调用该类的start();MyHandler myHandler = new MyHandler(handlerThread.getLooper());Message msg = myHandler.obtainMessage();Bundle b = new Bundle();b.putInt("age", 20);b.putString("name", "Jhon");msg.setData(b);// 将数据存放到Message中msg.sendToTarget();// 将msg发送到目标对象，所谓的目标对象，就是生成该msg对象的handler对象}class MyHandler extends Handler {public MyHandler() {}public MyHandler(Looper looper) {super(looper);}@Overridepublic void handleMessage(Message msg) {Bundle b = msg.getData();// 从Message中获得数据int age = b.getInt("age");String name = b.getString("name");System.out.println("age is " + age + ", name is" + name);System.out.println("Handler的ID-->" + Thread.currentThread().getId());}}}