@Override
        public PointF computeScrollVectorForPosition(int targetPosition) {
            return new PointF(0, StickyHeaderLayoutManager.this.computeScrollVectorForPosition(targetPosition));
        }
Updates firstViewAdapterPosition to the adapter position  of the highest item in the list - e.g., the
adapter position of the item with lowest y value in the list

@return the y value of the topmost view in the layout, or paddingTop if empty
android/modules/module_common/src/main/java/github/tornaco/android/thanos/widget/section/StickyHeaderLayoutManager.java