线程通信（2）

指定callback参数，则由callback处理消息。

public void doSendMessage(View view){
		Message msg;
		Runnable callback = new Runnable(){
			@Override
			public void run() {
                System.out.println("高优先级");				
			}
		};
		msg = Message.obtain(new Handler(),callback);
		msg.sendToTarget();
	}

     private Handler handler;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		handler = new Handler(new InnerHandlerCallback());
	}
	
	private class InnerHandlerCallback implements Handler.Callback{

		@Override
		public boolean handleMessage(Message msg) {
            System.out.println("中优先级");			
			return false;
		}
		
	}
	public void doSendMessage(View view){
		Message msg;
		Runnable callback = new Runnable(){
			@Override
			public void run() {
                System.out.println("高优先级");				
			}
		};
		msg = Message.obtain(handler);
		msg.sendToTarget();
	}

线程通信（2）

原文：http://blog.csdn.net/wojiaohuangyu/article/details/50468484