TEmplate

gistfile1.txt

	public class GridViewItemCell : UICollectionViewCell
	{
		public const string Key = "GridViewItemCell";
	 
		private ViewCell viewCell;
		private UIView view;
		public ViewCell ViewCell {
			get {
				return this.viewCell;
			}
			set {
				if (this.viewCell == value) {
					return;
				}
				this.UpdateCell (value);
			}
		}

		[Export ("initWithFrame:")]
		public GridViewItemCell (System.Drawing.RectangleF frame) : base (frame)
		{
		    SelectedBackgroundView = new GridItemSelectedViewOverlay (frame);
		//this.BringSubviewToFront (SelectedBackgroundView);
		
		}
		private void UpdateCell (ViewCell cell)
		{
			if (this.viewCell != null) {
				//this.viewCell.SendDisappearing ();
				this.viewCell.PropertyChanged -= new PropertyChangedEventHandler (this.HandlePropertyChanged);
			}
			this.viewCell = cell;
			this.viewCell.PropertyChanged += new PropertyChangedEventHandler (this.HandlePropertyChanged);
			//this.viewCell.SendAppearing ();
			this.UpdateView ();
		}

		private void HandlePropertyChanged (object sender, PropertyChangedEventArgs e)
		{
			this.UpdateView ();
		}

		private void UpdateView ()
		{

			if (this.view != null) {
				this.view.RemoveFromSuperview ();
			}
			this.view = RendererFactory.GetRenderer (this.viewCell.View).NativeView;
	
			this.AddSubview (this.view);
            this.BringSubviewToFront (SelectedBackgroundView);
		}

		public override void LayoutSubviews ()
		{
			base.LayoutSubviews ();
			RectangleF frame = this.ContentView.Frame;
			frame.X = (this.Bounds.Width - frame.Width) / 2;
			frame.Y = (this.Bounds.Height - frame.Height) / 2;
	 		this.ViewCell.View.Layout (frame.ToRectangle ());
			this.view.Frame = frame;
		}
	}