android 防止按钮多次点击

/**
	 * 防止按钮多次点击
	 */
	private static long lastClickTime;

	public static boolean isFastDoubleClick() {
		long time = System.currentTimeMillis();
		long timeD = time - lastClickTime;
		if (0 < timeD && timeD < 800) {
			return true;
		}
		lastClickTime = time;
		return false;
	}