#Android nestedscrollview smoothscroll android
In order to bound the height of a ScrollView, either set the height of the view directly (discouraged) or make sure all parent views have bounded height. So lets implement a simple NestedScrollView in our android app. Normally this would be difficult to accomplish since the system would be unable to decide which view to scroll. Syntax The method getChildCount() from NestedScrollView is declared as: Copy public int getChildCount() Return. NestedScrollView as the name suggests is used when there is a need for a scrolling view inside another scrolling view.
Normally this would be difficult to accomplish since the system would be unable to decide which view to scroll. Android NestedScrollView getChildCount() Returns the number of children in the group. This is where NestedScrollView comes into role. However now, it only gets stuck in between which makes it look ugly. Similarly, on fling (fast swipe down) towards the bottom of the screen, it must scroll all the way to the bottom smoothly. Normally this would be difficult task because system would be unable to decide which view to scroll. Now what i am trying to do is, that on fling (fast swipe up) on the Nestedscrollview it should scroll completely to top. Keep in mind that ScrollViews must have a bounded height in order to work, since they contain unbounded-height children into a bounded container (via a scroll interaction). NestedScrollView as the name suggests is used when there is a need for a scrolling view inside another scrolling view. With less effort, you can achieve a smooth scroll behavior for a dynamic expanding screen size within an interplay of the ConstraintLayout, RecyclerView and NestedScrollView. NestedScrollView is used when there is need for scrolling inside another scrolling view. Component that wraps platform ScrollView while providing integration with touch locking "responder" system. Suppose you have three RecyclerViews in your layout (They can be dynamically or programmatically created) as shown in the example.xml file below.
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