Examples with SpanSizeLookup androidx.recyclerview.widget.GridLayoutManager.SpanSizeLookup used on opensource projects

Example 1 with SpanSizeLookup

use of androidx.recyclerview.widget.GridLayoutManager.SpanSizeLookup in project epoxy by airbnb.

the class EpoxyItemSpacingDecorator method calculatePositionDetails.

private void calculatePositionDetails(RecyclerView parent, int position, LayoutManager layout) {
    int itemCount = parent.getAdapter().getItemCount();
    firstItem = position == 0;
    lastItem = position == itemCount - 1;
    horizontallyScrolling = layout.canScrollHorizontally();
    verticallyScrolling = layout.canScrollVertically();
    grid = layout instanceof GridLayoutManager;
    if (grid) {
        GridLayoutManager grid = (GridLayoutManager) layout;
        final SpanSizeLookup spanSizeLookup = grid.getSpanSizeLookup();
        int spanSize = spanSizeLookup.getSpanSize(position);
        int spanCount = grid.getSpanCount();
        int spanIndex = spanSizeLookup.getSpanIndex(position, spanCount);
        isFirstItemInRow = spanIndex == 0;
        fillsLastSpan = spanIndex + spanSize == spanCount;
        isInFirstRow = isInFirstRow(position, spanSizeLookup, spanCount);
        isInLastRow = !isInFirstRow && isInLastRow(position, itemCount, spanSizeLookup, spanCount);
    }
}