void Source_ItemClicked(int row)
{
object item = SourceList[row];
if (Element.IsGroupingEnabled && HeaderIndexes.Contains(row))
{
Element.InvokeHeaderTapped(item);
return;
}
Element.InvokeItemTapped(item);
}
public override UICollectionViewCell GetCell(UICollectionView collectionView, NSIndexPath indexPath)
{
var isHeader = HeaderIndexes.Contains(indexPath.Row);
WFCell cell;
if (isHeader)
{
cell = (WFCell)collectionView.DequeueReusableCell(WHeaderCell.CELL_ID, indexPath);
}
else
{
cell = (WFCell)collectionView.DequeueReusableCell(WFCell.CELL_ID, indexPath);
}
if (cell.RendererView == null)
{
View formsView;
if (isHeader)
{
formsView = (View)HeaderTemplate.CreateContent();
}
else
{
formsView = (View)ItemTemplate.CreateContent();
}
var nativeView = formsView.ToUIView(new CGRect(0, 0, cell.Frame.Width, cell.Frame.Height));
cell.RendererView = nativeView;
}
var subview = cell.ContentView.Subviews[0];
var frame = subview.Frame;
//force height to the cell height in case the reusable cell subview have the old height
subview.Frame = new CGRect(frame.X, frame.Y, cell.Frame.Width, cell.Frame.Height);
var element = (cell.RendererView as VisualElementRenderer <VisualElement>).Element;
element.BindingContext = ItemsSource[indexPath.Row];
element.Layout(new Xamarin.Forms.Rectangle(0, 0, cell.Frame.Width, cell.Frame.Height));
return(cell);
}
void InitSource()
{
SourceList.Clear();
HeaderIndexes.Clear();
if (Element.ItemsSource == null)
{
return;
}
SourceList.Clear();
if (Element.IsGroupingEnabled)
{
var index = 0;
foreach (var group in Element.ItemsSource)
{
HeaderIndexes.Add(index);
var headerIndex = index;
SourceList.Add(group);
index++;
var groupList = group as IEnumerable;
foreach (var item in groupList)
{
SourceList.Add(item);
index++;
}
}
}
else
{
foreach (var item in Element.ItemsSource)
{
SourceList.Add(item);
}
}
}
