internal UIEdgeInsets GetInsetForSection(ItemsViewLayout itemsViewLayout,
UICollectionView collectionView, nint section)
{
var uIEdgeInsets = ItemsViewLayout.GetInsetForSection(collectionView, itemsViewLayout, section);
if (!ItemsView.IsGrouped)
{
return(uIEdgeInsets);
}
// If we're grouping, we'll need to inset the sections to maintain the spacing between the
// groups and their group headers/footers
nfloat spacing = itemsViewLayout.GetMinimumLineSpacingForSection(collectionView, itemsViewLayout, section);
var top = uIEdgeInsets.Top;
var left = uIEdgeInsets.Left;
if (itemsViewLayout.ScrollDirection == UICollectionViewScrollDirection.Horizontal)
{
left += spacing;
}
else
{
top += spacing;
}
return(new UIEdgeInsets(top, left,
uIEdgeInsets.Bottom, uIEdgeInsets.Right));
}
public override nfloat GetMinimumLineSpacingForSection(UICollectionView collectionView,
UICollectionViewLayout layout, nint section)
{
if (ItemsViewLayout == null)
{
return(default(nfloat));
}
return(ItemsViewLayout.GetMinimumLineSpacingForSection(collectionView, layout, section));
}
internal UIEdgeInsets GetInsetForSection(ItemsViewLayout itemsViewLayout,
UICollectionView collectionView, nint section)
{
var uIEdgeInsets = ItemsViewLayout.GetInsetForSection(collectionView, itemsViewLayout, section);
if (!ItemsView.IsGrouped)
{
return(uIEdgeInsets);
}
// If we're grouping, we'll need to inset the sections to maintain the item spacing between the
// groups and/or their group headers/footers
var itemsLayout = ItemsView.ItemsLayout;
var scrollDirection = itemsViewLayout.ScrollDirection;
nfloat lineSpacing = itemsViewLayout.GetMinimumLineSpacingForSection(collectionView, itemsViewLayout, section);
if (itemsLayout is GridItemsLayout)
{
nfloat itemSpacing = itemsViewLayout.GetMinimumInteritemSpacingForSection(collectionView, itemsViewLayout, section);
if (scrollDirection == UICollectionViewScrollDirection.Horizontal)
{
return(new UIEdgeInsets(itemSpacing + uIEdgeInsets.Top, lineSpacing + uIEdgeInsets.Left,
uIEdgeInsets.Bottom, uIEdgeInsets.Right));
}
return(new UIEdgeInsets(lineSpacing + uIEdgeInsets.Top, itemSpacing + uIEdgeInsets.Left,
uIEdgeInsets.Bottom, uIEdgeInsets.Right));
}
if (scrollDirection == UICollectionViewScrollDirection.Horizontal)
{
return(new UIEdgeInsets(uIEdgeInsets.Top, lineSpacing + uIEdgeInsets.Left,
uIEdgeInsets.Bottom, uIEdgeInsets.Right));
}
return(new UIEdgeInsets(lineSpacing + uIEdgeInsets.Top, uIEdgeInsets.Left,
uIEdgeInsets.Bottom, uIEdgeInsets.Right));
}