android 通过handler实现异步处理

public class HandlethreadtestActivity extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                HandlerThread myhandlethread=new HandlerThread("my_handler1");// 1.创建一个handlerthread 线程对象 my_handler  是这个线程对象的名称                myhandlethread.start();//2. 启动线程        MyHandle myhandle=new MyHandle(myhandlethread.getLooper());//4.绑定到创建的线程上        Message msg=myhandle.obtainMessage();//5. 获取到msg对象        Bundle b=new Bundle();       b.putInt("age", 12);       b.putString("name", "super_cj");       msg.setData(b);//在msg对象上绑定数据       msg.sendToTarget(); //把msg发送到绑定的线程上    }    class MyHandle extends Handler //3. 创建一个handler的内部类     {    public MyHandle()    {        }    public MyHandle(Looper looper)//重载myhandle  让父类Handler 把myhandlerthread 加入到线程队列    {    super(looper);    }@Overridepublic void handleMessage(Message msg) {//在线程里要做的事  就是你想异步处理的代码// TODO Auto-generated method stubsuper.handleMessage(msg);Bundle bb=msg.getData();//获得msg 传过来的数据int age=bb.getInt("age");String name=bb.getString("name");Toast.makeText(HandlethreadtestActivity.this, String.valueOf(age), Toast.LENGTH_LONG).show();try{Thread.sleep(5000);//暂停线程5秒Toast.makeText(HandlethreadtestActivity.this, name, Toast.LENGTH_LONG).show();}catch(Exception e){}}        }}

我也是初学自己写下来忘记的时候来看看呵呵有错误的地方请帮忙指出谢谢！

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