android开发教程之使用looper处理消息队列

package com.yanjun;

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 handleractivity extends activity {

  @override
  public void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    setcontentview(r.layout.main);
      // 通过handlerthread对象来实现使用looper处理消息队列的功能
    handlerthread handlerthread = new handlerthread("handlerthread");
    // 使线程运行必须调用start()
    handlerthread.start();
    myhandler myhandler = new myhandler(handlerthread.getlooper());
    message message = myhandler.obtainmessage();
    // 把message发送到myhandler.obtainmessage()目标处，即谁调用的就发送给谁
    bundle bundle = new bundle();
    // 通过bundle添加数据
    bundle.putint("age", 10);
    bundle.putstring("name", "john");
    // 将bundle信息添加进去
    message.setdata(bundle);
    message.sendtotarget();
  }

  class myhandler extends handler {

    public myhandler(looper looper) {
      super(looper);
      // todo auto-generated constructor stub
    }

    @override
    public void handlemessage(message msg) {
      bundle bundle = msg.getdata();
      int age = bundle.getint("age");
      string name = bundle.getstring("name");
      system.out.println("年龄" + age + "名字" + name);
          }

  }