void Element_OnScrollRequested(object sender, ScrollRequestedEventArgs e)
{
if (Element.ListLayout == HorizontalListViewLayout.Grid || Control.NumberOfItemsInSection(0) == 0 || e.Position >= Control.NumberOfItemsInSection(0))
{
return;
}
_isInternalScroll = true;
UICollectionViewScrollPosition type = UICollectionViewScrollPosition.Left;
switch (e.Type)
{
case ScrollType.Start:
type = UICollectionViewScrollPosition.Left;
break;
case ScrollType.End:
type = UICollectionViewScrollPosition.Right;
break;
case ScrollType.Center:
type = UICollectionViewScrollPosition.CenteredHorizontally;
break;
}
Control.ScrollToItem(
NSIndexPath.FromRowSection(e.Position, 0),
type,
e.Animate);
}
void Element_OnScrollRequested(object sender, ScrollRequestedEventArgs e)
{
if (e.Position >= Control.ChildCount)
{
return;
}
var itemWidth = Control.GetChildAt(e.Position).MeasuredWidth;
var width = Control.MeasuredWidth;
int offset = 0;
switch (e.Type)
{
case ScrollType.Start:
offset = 0;
break;
case ScrollType.Center:
offset = (width / 2) - (itemWidth / 2);
break;
case ScrollType.End:
offset = width - itemWidth;
break;
}
HorizontalLinearLayoutManager?.ScrollToPositionWithOffset(e.Position, offset);
}
