全局设置 防止view重复点击

• 根据点击时间判断是否是初次点击的工具类

public class ButtonUtils {
    private static long lastClickTime = 0;
    private static long DIFF = 1000;
    private static int lastButtonId = -1;

    /**
     * 判断两次点击的间隔，如果小于1000，则认为是多次无效点击
     *
     * @return
     */
    public static boolean isFastDoubleClick() {
        return isFastDoubleClick(-1, DIFF);
    }

    /**
     * 判断两次点击的间隔，如果小于1000，则认为是多次无效点击
     *
     * @return
     */
    public static boolean isFastDoubleClick(int buttonId) {
        return isFastDoubleClick(buttonId, DIFF);
    }

    /**
     * 判断两次点击的间隔，如果小于diff，则认为是多次无效点击
     *
     * @param diff
     * @return
     */
    public static boolean isFastDoubleClick(int buttonId, long diff) {
        long time = System.currentTimeMillis();
        long timeD = time - lastClickTime;
        if (lastButtonId == buttonId && lastClickTime > 0 && timeD < diff) {
            return true;
        }
        lastClickTime = time;
        lastButtonId = buttonId;
        return false;
    }

}

• 在BaseActivity里重写dispatchTouchEvent方法

/**
     * 防止view重复点击
     */
    override fun dispatchTouchEvent(ev: MotionEvent?): Boolean {

        if (ev?.action == MotionEvent.ACTION_DOWN) {
            // 判断连续点击事件时间差
            if (ButtonUtils.isFastDoubleClick()) {
                return true
            }
        }
        return super.dispatchTouchEvent(ev)
    }

思路:通过事件分发机制来拦截点击事件

注:dispatchTouchEvent()返回true，后续事件（ACTION_MOVE、ACTION_UP）会再传递，如果返回false，dispatchTouchEvent()就接收不到ACTION_UP、ACTION_MOVE。