1 files changed, 59 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.Android/Renderers/ActivityIndicatorRenderer.cs b/Xamarin.Forms.Platform.Android/Renderers/ActivityIndicatorRenderer.cs
new file mode 100644
index 00000000..e2314c61
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android/Renderers/ActivityIndicatorRenderer.cs
@@ -0,0 +1,59 @@
+using System.ComponentModel;
+using Android.Graphics;
+using Android.OS;
+using Android.Views;
+using AProgressBar = Android.Widget.ProgressBar;
+
+namespace Xamarin.Forms.Platform.Android
+{
+	public class ActivityIndicatorRenderer : ViewRenderer<ActivityIndicator, AProgressBar>
+	{
+		public ActivityIndicatorRenderer()
+		{
+			AutoPackage = false;
+		}
+
+		protected override void OnElementChanged(ElementChangedEventArgs<ActivityIndicator> e)
+		{
+			base.OnElementChanged(e);
+
+			AProgressBar progressBar = Control;
+			if (progressBar == null)
+			{
+				progressBar = new AProgressBar(Context) { Indeterminate = true };
+				SetNativeControl(progressBar);
+			}
+
+			UpdateColor();
+			UpdateVisibility();
+		}
+
+		protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
+		{
+			base.OnElementPropertyChanged(sender, e);
+
+			if (e.PropertyName == ActivityIndicator.IsRunningProperty.PropertyName)
+				UpdateVisibility();
+			else if (e.PropertyName == ActivityIndicator.ColorProperty.PropertyName)
+				UpdateColor();
+		}
+
+		void UpdateColor()
+		{
+			if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
+				return;
+
+			Color color = Element.Color;
+
+			if (!color.IsDefault)
+				Control.IndeterminateDrawable.SetColorFilter(color.ToAndroid(), PorterDuff.Mode.SrcIn);
+			else
+				Control.IndeterminateDrawable.ClearColorFilter();
+		}
+
+		void UpdateVisibility()
+		{
+			Control.Visibility = Element.IsRunning ? ViewStates.Visible : ViewStates.Invisible;
+		}
+	}
+}
+\ No newline at end of file