Android Message里传送的数据[转]

package org.hualang.handlertest;import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;
import android.util.Log;
import android.widget.Toast;public class HandlerTest4 extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.d("System.out","Activity所在线程的id："+Thread.currentThread().getId());
/**
* 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 handlerThread = new HandlerThread("handlerThread");
/**
* 使用HandlerThread的getLooper()方法之前，必须先调用该类的start()方法，否则是个null，会报错
*/
handlerThread.start();
MyHandler handler = new MyHandler(handlerThread.getLooper());
Message msg = handler.obtainMessage();
/**
* 将Message对象发送到目标对象
* 所谓的目标对象，就是生成该msg对象的handler对象
*/
//msg.obj = "Hello world";
Bundle b = new Bundle();
b.putInt("age", 22);
b.putString("name", "loulijun");
msg.setData(b);
msg.sendToTarget();
}
class MyHandler extends Handler
{
public MyHandler()
{
}
public MyHandler(Looper looper)
{
super(looper);
}
public void handleMessage(Message msg)
{
//String str = (String)msg.obj
Bundle b = msg.getData();
int age = b.getInt("age");
String name = b.getString("name");
Toast toast = Toast.makeText(getApplicationContext(), "age="+age+"name="+name, Toast.LENGTH_LONG);
toast.show();
Log.d("System.out", "handler所在线程的id："+Thread.currentThread().getId());
}
}
}