protected void LayoutBar()
{
if (SelectedIndex < 0)
{
return;
}
if (ShellSectionController.GetItems().IndexOf(ShellSection.CurrentItem) != SelectedIndex)
{
return;
}
var layout = CollectionView.GetLayoutAttributesForItem(NSIndexPath.FromItemSection((int)SelectedIndex, 0));
if (layout == null)
{
return;
}
var frame = layout.Frame;
if (_bar.Frame.Height != 2)
{
_bar.Frame = new CGRect(frame.X, frame.Bottom - 2, frame.Width, 2);
}
else
{
UIView.Animate(.25, () => _bar.Frame = new CGRect(frame.X, frame.Bottom - 2, frame.Width, 2));
}
}
protected void LayoutBar()
{
var layout = CollectionView.GetLayoutAttributesForItem(NSIndexPath.FromItemSection((int)SelectedIndex, 0));
var frame = layout.Frame;
if (_bar.Frame.Height != 2)
{
_bar.Frame = new CGRect(frame.X, frame.Bottom - 2, frame.Width, 2);
}
else
{
UIView.Animate(.25, () => _bar.Frame = new CGRect(frame.X, frame.Bottom - 2, frame.Width, 2));
}
}
private void ScrollToIndex(int index, bool animated)
{
var indexPath = NSIndexPath.FromItemSection(index, 0);
var attributes = CollectionView.GetLayoutAttributesForItem(indexPath);
if (CollectionView != null && attributes != null)
{
var halfWidth = CollectionView.Frame.Width / 2;
var offset = new CGPoint(attributes.Frame.GetMidX() - halfWidth, 0);
CollectionView.SetContentOffset(offset, animated);
}
else
{
return;
}
}
