Check if RecyclerView is scrollable

Question

How to check if a RecyclerView is scrollable, ie, there are items below/above the visible area

I have a dropdown in my recycler view which works by using notifyItemRangeInserted() and notifyItemRangeRemoved(). Whenever any of this happens, I want to check if the RecyclerView is scrollable or not, as I have to adjust another view, a banner like in newsstand, accordingly

Answer 1

There you go:

public boolean isRecyclerScrollable() {
  LinearLayoutManager layoutManager = (LinearLayoutManager) recyclerView.getLayoutManager();
  RecyclerView.Adapter adapter = recyclerView.getAdapter();
  if (layoutManager == null || adapter == null) return false;

  return layoutManager.findLastCompletelyVisibleItemPosition() < adapter.getItemCount() - 1;
}

Answer 2

I found an easy solution that works regardless of the position you are in the list:

public boolean isRecyclerScrollable(RecyclerView recyclerView) {
    return recyclerView.computeHorizontalScrollRange() > recyclerView.getWidth() || recyclerView.computeVerticalScrollRange() > recyclerView.getHeight();
}

Answer 3

The idea is to check if the last completely visible element is the last element in the list.

private boolean isScrollable()
{
    return mLinearLayoutManager.findLastCompletelyVisibleItemPosition() + 1 ==
        mRecyclerViewAdapter.getItemCount();
}

Answer 4

This one works for me.

recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {

        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
            super.onScrolled(recyclerView, dx, dy);


            boolean isRecylerScrollable = recyclerView.computeHorizontalScrollRange() > recyclerView.getWidth();

            if(isRecylerScrollable){
             //do something
            }
    });
}