Handler 的使用

推荐安卓开发神器（里面有各种UI特效和android代码库实例）

class MyHandler extends Handler{   
        public MyHandler(){   
               
        }   
        public MyHandler(Looper looper){   
            super(looper);   
        }   
        @Override  
        public void handleMessage(Message msg) {   
        	if(msg.arg1 == 1){
        		Log.e("ContactNew", "I get msg");
        	} else {
        		Log.e("ContactNew", "I not get msg");
        	}

            Bundle b = msg.getData();
            int age = b.getInt("age");   
            String name = b.getString("name");   
            System.out.println("age is " + age + ", name is" + name);   
            System.out.println("Handler--->" + Thread.currentThread().getId());   
            System.out.println("handlerMessage");   
        }   
    }   


public class ContactNew extends Activity {
    /** Called when the activity is first created. */
	 MyHandler handler = new MyHandler();
	TextView b;
    @Override 
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
         
           
      Message msgMessage = new Message();
      msgMessage.arg1 = 1;
      handler.sendMessage(msgMessage);
        
      new Thread(r).start();
    }
    
    Runnable r = new Runnable(){  
    	  
        public void run() {  
        	
        	Message msgMessage = new Message();
            msgMessage.arg1 = 2;
            handler.sendMessage(msgMessage);
            
            }  
    };