如何為 NestedScrollview 獲取 ACTION_UP 觸摸事件

Question

我想單擊父視圖 (LinearLayout) 偵聽器，但由於 NestedScrollView(Child) 而無法單擊。 所以我試圖 OnTouch NestedScrollView 但我只得到 ACTION_MOVE 但我需要 ACTION_UP 或 ACTION_DOWN 事件來執行功能

我嘗試通過創建自定義 NestedScrollView 和 Override OnInterceptTouch 事件和 requestDisallow(false)

xml

https://pastebin.com/WYabtJM0

nestedScrollView?.setOnTouchListener { v, event ->
        when (event.action) {
            MotionEvent.ACTION_UP -> {
                if (bind?.mainViewModel?.buttonTappedToCheckForRestriction?.value != false && bind?.mainViewModel?.visbility?.value != false) {
                    bind?.mainViewModel?.buttonTappedToCheckForRestriction?.postValue(true)
                } else if (bind?.mainViewModel?.visbility?.value == true) {
                    bind?.mainViewModel?.buttonTappedToCheckForRestriction?.postValue(true)
                }
            }
        }
        return@setOnTouchListener false
    };

Answer 1

要識別操作 NeedScrollView 的用戶，您應該忽略此功能

scroller.setOnScrollChangeListener(object : NestedScrollView.OnScrollChangeListener{
@Override
    public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {

        if (scrollY > oldScrollY) {
            Log.i(TAG, "Scroll DOWN");
        }
        if (scrollY < oldScrollY) {
            Log.i(TAG, "Scroll UP");
        }

        if (scrollY == 0) {
            Log.i(TAG, "TOP SCROLL");
        }

       if (scrollY == ( v.getMeasuredHeight() - v.getChildAt(0).getMeasuredHeight() )) {
           Log.i(TAG, "BOTTOM SCROLL");
       }
   }

})