寫了個程序，點擊發送按鈕的時候給主handler發送消息，主handler接收到消息后處理，處理后給子線程handler發送消息，子線程handler接收到消息后處理完再給主handler發送消息。如此循環。在點擊停止按鈕的事件中寫了handler.removeMessages(1);來移除handler，不過多次點擊無效。log日志一直循環打印。求大神指點停止handler消息的方法。public class FourActivity extends Activity implements OnClickListener{ private Button btn_send; private Button btn_stop; private Handler threadHandler; //創建主線程的handler private Handler handler = new Handler(){ public void handleMessage(android.os.Message msg) { Message message = new Message(); System.out.println("main handler"); //向子線程發送消息 threadHandler.sendMessageDelayed(message, 1000); }; }; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.four_activity); btn_send = (Button)findViewById(R.id.button1); btn_stop = (Button)findViewById(R.id.button2); btn_send.setOnClickListener(this); btn_stop.setOnClickListener(this); HandlerThread ht = new HandlerThread("handlerThread"); ht.start(); //創建子線程的handler threadHandler = new Handler(ht.getLooper()){ public void handleMessage(Message msg) { Message message = new Message(); System.out.println("thread handler"); //向主線程發送消息 handler.sendMessageDelayed(message, 1000); }; }; } @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.button1: handler.sendEmptyMessage(1); break; case R.id.button2: handler.removeMessages(1); break; default: break; } } }