How to disable overscroll effect on RecyclerView ONLY when you can't scroll anyway ?

Question

Background

Sometimes, all items of the recyclerView are already visible to the user.

In this case, it wouldn\'t matter to the user to see overscroll effect, be

Answer 1

you could give OVER_SCROLL_IF_CONTENT_SCROLLS a try. Accordingly to the documentation

Allow a user to over-scroll this view only if the content is large enough to meaningfully scroll, provided it is a view that can scroll.

Or you could check if you have enough items to trigger the scroll and enable/disable the over scroll mode, depending on it. Eg

boolean notAllVisible = layoutManager.findLastCompletelyVisibleItemPosition() < adapter.getItemCount() - 1;
if (notAllVisible) {
   recyclerView.setOverScrollMode(allVisible ? View.OVER_SCROLL_NEVER);
}