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

Answer 1

boolean isScrollable() {
    LinearLayoutManager layoutManager = (LinearLayoutManager) mRecyclerView.getLayoutManager();
    int itemCount = mRecyclerView.getAdapter().getItemCount();

    return !(itemCount == 0 ||
    (layoutManager.findFirstCompletelyVisibleItemPosition() == 0 &&
    layoutManager.findLastCompletelyVisibleItemPosition() == itemCount - 1));
}