XjojoX1989

    public boolean onInterceptTouchEvent(MotionEvent event) {
        int action = event.getAction();
        if (action == MotionEvent.ACTION_DOWN) {
            return false;
        } else {
            return true;
        }
    }

XjojoX1989

    public boolean dispatchTouchEvent(MotionEvent event) {
        int x = (int) event.getX();
        int y = (int) event.getY();

        switch (event.getAction) {
            case MotionEvent.ACTION_DOWN:
                parent.requestDisallowInterceptTouchEvent(true);//true表示禁止父容器攔截
                break;
            case MotionEvent.ACTION_MOVE:
                int deltaX = x - mLastX;

XjojoX1989

    //重寫父容器的攔截方法
    public boolean onInterceptTouchEvent(MotionEvent event) {
        boolean intercepted = false;
        int x = (int) event.getX();
        int y = (int) event.getY();
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN://ACTION_DOWN事件必須返回false，一但攔截後續事件將不能傳遞給子View
                intercepted = false;
                break;
            case MotionEvent.ACTION_MOVE://ACTION_MOVE事件根據需要決定是否攔截

XjojoX1989

    public boolean dispatchTouchEvent(MotionEvent ev) {
        boolean consume = false;
        if (onInterceptTouchEvent(ev)) {//表示此根iewGroup攔截這次的點擊事件
            consume = onTouchEvent(ev);//流程交給ViewGroup的onTouchEvent處理
        } else {//ViewGroup不攔截此次點擊，分發給子元素去處理
            consume = child.dispatchTouchEvent(ev);//子元素繼續分發此次點擊事件，如此反覆到事件最後被處理完畢
        }
        return consume;
    }

XjojoX1989

    public boolean dispatchTouchEvent(MotionEvent ev) {
        boolean consume = false;
        if (onInterceptTouchEvent(ev)) {
            consume = onTouchEvent(ev);
        } else {
            consume = child.dispatchTouchEvent(ev);
        }
        return consume;
    }

XjojoX1989

boolean isConsume = mGestureDetector.onTouchEvent(event);
return isConsume;

XjojoX1989

GestureDetector mGestureDetector = new GestureDetector(this);

//解決長按屏幕後無法拖動的現象
mGestureDetector.setIsLongpressEnabled(false);  

XjojoX1989

GestureDetector mGestureDetector = new GestureDetector(this);
//解決長按屏幕後無法拖動的現象mGestureDetector.setIsLongpressEnabled(false);  

XjojoX1989

MarginLayoutParams params = (MarginLayoutParams) btn.getLayoutParams();
params.leftMargin += 100;
btn.requestLayout();// 請求重新對View進行measure、layout

XjojoX1989

ObjectAnimator.ofFloat(yourView, "translationX", 0, 100).setDuration(100).start();