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

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 2

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

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

Answer 3

What about

// 1 = down; -1 = up
recyclerView.canScrollVertically(-1)

If you want to check if there is any scrollable space, no matter which direction

cardList.canScrollVertically(1) || cardList.canScrollVertically(-1)