Merge "Use the LayoutManager as the source of truth for visible positions" into sc-dev

            return -1;

        }

        View child = getChildAt(0);

        int rowIndex = getChildPosition(child);

        int rowIndex = -1;

        View child = null;

        LayoutManager layoutManager = getLayoutManager();

        if (layoutManager instanceof LinearLayoutManager) {

            // Use the LayoutManager as the source of truth for visible positions. During

            // animations, the view group child may not correspond to the visible views that appear

            // at the top.

            rowIndex = ((LinearLayoutManager) layoutManager).findFirstVisibleItemPosition();

            child = layoutManager.findViewByPosition(rowIndex);

        }

        if (child == null) {

            // If the layout manager returns null for any reason, which can happen before layout

            // has occurred for the position, then look at the child of this view as a ViewGroup.

            child = getChildAt(0);

            rowIndex = getChildPosition(child);

        }

        for (int i = 0; i < getChildCount(); i++) {

            View view = getChildAt(i);

            if (view instanceof TableLayout) {