在activity.java中实现长按进入某个应用程序
    public boolean onKeyLongPress(int keyCode, KeyEvent event) {
     //Log.d(TAG,"onKeyLongPress,keyCode:"+keyCode);
     if(KEYVALUE == keyCode)
     {
             Intent intent = new Intent();//("com.rockchip.tscalibration");
             ComponentName componentname = new ComponentName("com.rockchip.tscalibration","com.rockchip.tscalibration.TouchScreenMonitor");
             intent.setComponent(componentname);
             startActivity(intent);
             return true; 
         }   // to tscalibrate
,想避免长按按键时重复进入,该怎么办?求解!不胜感激