1 files changed, 53 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.iOS/Renderers/ActivityIndicatorRenderer.cs b/Xamarin.Forms.Platform.iOS/Renderers/ActivityIndicatorRenderer.cs
new file mode 100644
index 00000000..0ef8741f
--- /dev/null
+++ b/Xamarin.Forms.Platform.iOS/Renderers/ActivityIndicatorRenderer.cs
@@ -0,0 +1,53 @@
+using System.Drawing;
+using System.ComponentModel;
+#if __UNIFIED__
+using UIKit;
+
+#else
+using MonoTouch.UIKit;
+#endif
+
+namespace Xamarin.Forms.Platform.iOS
+{
+	public class ActivityIndicatorRenderer : ViewRenderer<ActivityIndicator, UIActivityIndicatorView>
+	{
+		protected override void OnElementChanged(ElementChangedEventArgs<ActivityIndicator> e)
+		{
+			if (e.NewElement != null)
+			{
+				if (Control == null)
+				{
+					SetNativeControl(new UIActivityIndicatorView(RectangleF.Empty) { ActivityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray });
+				}
+
+				UpdateColor();
+				UpdateIsRunning();
+			}
+
+			base.OnElementChanged(e);
+		}
+
+		protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
+		{
+			base.OnElementPropertyChanged(sender, e);
+
+			if (e.PropertyName == ActivityIndicator.ColorProperty.PropertyName)
+				UpdateColor();
+			else if (e.PropertyName == ActivityIndicator.IsRunningProperty.PropertyName)
+				UpdateIsRunning();
+		}
+
+		void UpdateColor()
+		{
+			Control.Color = Element.Color == Color.Default ? null : Element.Color.ToUIColor();
+		}
+
+		void UpdateIsRunning()
+		{
+			if (Element.IsRunning)
+				Control.StartAnimating();
+			else
+				Control.StopAnimating();
+		}
+	}
+}
+\ No newline at end of file