Initial import

1 files changed, 70 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.iOS/Cells/ImageCellRenderer.cs b/Xamarin.Forms.Platform.iOS/Cells/ImageCellRenderer.cs
new file mode 100644
index 00000000..ade59e82
--- /dev/null
+++ b/Xamarin.Forms.Platform.iOS/Cells/ImageCellRenderer.cs
@@ -0,0 +1,70 @@
+using System.ComponentModel;
+using System.Threading.Tasks;
+#if __UNIFIED__
+using UIKit;
+using Foundation;
+
+#else
+using MonoTouch.UIKit;
+using MonoTouch.Foundation;
+#endif
+
+namespace Xamarin.Forms.Platform.iOS
+{
+	public class ImageCellRenderer : TextCellRenderer
+	{
+		public override UITableViewCell GetCell(Cell item, UITableViewCell reusableCell, UITableView tv)
+		{
+			var result = (CellTableViewCell)base.GetCell(item, reusableCell, tv);
+
+			var imageCell = (ImageCell)item;
+
+			WireUpForceUpdateSizeRequested(item, result, tv);
+
+			SetImage(imageCell, result);
+
+			return result;
+		}
+
+		protected override void HandlePropertyChanged(object sender, PropertyChangedEventArgs args)
+		{
+			var tvc = (CellTableViewCell)sender;
+			var imageCell = (ImageCell)tvc.Cell;
+
+			base.HandlePropertyChanged(sender, args);
+
+			if (args.PropertyName == ImageCell.ImageSourceProperty.PropertyName)
+				SetImage(imageCell, tvc);
+		}
+
+		async void SetImage(ImageCell cell, CellTableViewCell target)
+		{
+			var source = cell.ImageSource;
+
+			target.ImageView.Image = null;
+
+			IImageSourceHandler handler;
+
+			if (source != null && (handler = Registrar.Registered.GetHandler<IImageSourceHandler>(source.GetType())) != null)
+			{
+				UIImage uiimage;
+				try
+				{
+					uiimage = await handler.LoadImageAsync(source).ConfigureAwait(false);
+				}
+				catch (TaskCanceledException)
+				{
+					uiimage = null;
+				}
+
+				NSRunLoop.Main.BeginInvokeOnMainThread(() =>
+				{
+					target.ImageView.Image = uiimage;
+					target.SetNeedsLayout();
+				});
+			}
+			else
+				target.ImageView.Image = null;
+		}
+	}
+}
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