public override UICollectionViewLayoutAttributes LayoutAttributesForDecorationView(NSString kind, NSIndexPath indexPath)
{
var layoutAttributes = UICollectionViewLayoutAttributes.CreateForDecorationView <FastListViewLayoutAttributes>(kind, indexPath);
layoutAttributes.Color = _fastListView.SeparatorColor.ToUIColor();
return(layoutAttributes);
}
/// <summary>
/// Layouts the attributes for elements in rect.
/// </summary>
/// <returns>The attributes for elements in rect.</returns>
/// <param name="rect">Rect.</param>
public override UICollectionViewLayoutAttributes[] LayoutAttributesForElementsInRect(CGRect rect)
{
var attributes = new UICollectionViewLayoutAttributes[_cellCount + 1];
CalculateAllAttributes(attributes);
if (_requiresHeightCalculation)
{
CalculateHeightForItems();
CalculateAllAttributes(attributes);
}
// we must set the content size to the total height of all cells recorded in _currentY
var width = _collectionViewSize.Width;
_collectionViewSize = new CGSize(width, _currentHeight);
var decorationAttribs = UICollectionViewLayoutAttributes.CreateForDecorationView(myDecorationViewId, NSIndexPath.FromItemSection(0, 0));
decorationAttribs.Size = new CGSize(CollectionView.Frame.Width, CollectionView.Frame.Height);
decorationAttribs.ZIndex = -1;
attributes[_cellCount] = decorationAttribs;
return(attributes);
}
// TODO: Step 5c: add layout attributes for decoration view
public override UICollectionViewLayoutAttributes LayoutAttributesForDecorationView(NSString kind, NSIndexPath indexPath)
{
var decorationAttribs = UICollectionViewLayoutAttributes.CreateForDecorationView(kind, indexPath);
decorationAttribs.Size = CollectionView.Frame.Size;
decorationAttribs.Center = CollectionView.Center;
decorationAttribs.ZIndex = -1;
return(decorationAttribs);
}
public override UICollectionViewLayoutAttributes[] LayoutAttributesForElementsInRect(RectangleF rect)
{
var attributes = new UICollectionViewLayoutAttributes [cellCount + 1];
for (int i = 0; i < cellCount; i++)
{
NSIndexPath indexPath = NSIndexPath.FromItemSection(i, 0);
attributes [i] = LayoutAttributesForItem(indexPath);
}
var decorationAttribs = UICollectionViewLayoutAttributes.CreateForDecorationView(myDecorationViewId, NSIndexPath.FromItemSection(0, 0));
decorationAttribs.Size = CollectionView.Frame.Size;
decorationAttribs.Center = CollectionView.Center;
decorationAttribs.ZIndex = -1;
attributes [cellCount] = decorationAttribs;
return(attributes);
}
