public static class Utils{
                private static final int MIN_CLICK_DELAY_TIME = 200;
                    private static long lastClickTime;
                public static boolean isFastClick(){
                        boolean flag = false;
                        long curClickTime = System.currentTimeMillis();
                        if ((curClickTime - lastClickTime) >= MIN_CLICK_DELAY_TIME){
                        flag = true;
        }
                    lastClickTime = curClickTime;
                return flag;
            }
        }