Is it possible to have the last item in a RecyclerView to be docked to the bottom if there is no need to scroll?

Question

I\'m building a shopping cart RecyclerView that displays all the items in the cart in a RecyclerView, as well as it has an additional view at the bottom that summarizes the cart

Answer 1

Based on the answer by yigit I created a working implementation. Extend ItemDecoration and override getItemOffsets():

@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
    int childCount = parent.getAdapter().getItemCount();
    if (parent.getChildLayoutPosition(view) != childCount - 1) return;
    int lastViewBottom = calculateViewBottom(parent.getLayoutManager().findViewByPosition(childCount - 2));

    view.measure(parent.getWidth(), parent.getHeight());
    int height = view.getMeasuredHeight();
    int topOffset = parent.getHeight() - lastViewBottom - height;
    if (topOffset < 0) topOffset = itemOffset;

    outRect.set(itemOffset, topOffset, itemOffset, itemOffset);
}

private int calculateViewBottom(View view) {
    ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
    return (int) view.getY() + view.getHeight() + params.topMargin + params.bottomMargin;
}