android Timer TimerTask Handler 设备震动

Timer timer = new Timer();
	Handler handler = new Handler(){    
        public void handleMessage(Message msg) {    
            switch (msg.what) {        
            case 1:        
            	onRefreshBedList();  
                break;        
            }        
            super.handleMessage(msg);    
        }    
            
    };    
    TimerTask task = new TimerTask(){    
        public void run() {    
        	 Message message = new Message();        
             message.what = 1;        
             handler.sendMessage(message);  
        }    
            
    };    



timer.schedule(task, 120000,540000); 



public static void vibrator(Context c) {
		Vibrator vibrator = (Vibrator)c.getSystemService(Context.VIBRATOR_SERVICE);
		long [] pattern = {100,400,100,400};   // 停止 开启 停止 开启   
        vibrator.vibrate(pattern,-1);
	}
	public static boolean hasVibrator(Context c){//判断设备能否震动
		Vibrator vibrator = (Vibrator)c.getSystemService(Context.VIBRATOR_SERVICE);
		return vibrator.hasVibrator();
	}