Code     private Handler myHandler = new Handler();	Runnable myrun = new Runnable() {		@Override		public void run() {			// TODO Auto-generated method stub			myHandler.postDelayed(myrun, 1000);		}	};myHandler.post(myrun);  //startmyHandler.removeCallbacks(myrun);  //stop

CodeHandler handler = new Handler(){		@Override		public void handleMessage(Message msg) {			// TODO Auto-generated method stub			switch(msg.what){			case 1:                      //do your action;			}		}	};Runnable runnable = new Runnable() {				@Override		public void run() {			// TODO Auto-generated method stub			msg.what = 1;			//do your action;			handler.sendMessage(msg);		}	};