[WinRT] Setting ActivityIdicator color works now (#479)

diff --git a/Xamarin.Forms.Platform.WinRT/ActivityIndicatorRenderer.cs b/Xamarin.Forms.Platform.WinRT/ActivityIndicatorRenderer.cs
index 5c36afd..cfe91f6 100644 (file)
--- a/Xamarin.Forms.Platform.WinRT/ActivityIndicatorRenderer.cs
+++ b/Xamarin.Forms.Platform.WinRT/ActivityIndicatorRenderer.cs
@@ -1,4 +1,5 @@
-using System.ComponentModel;
+using System;
+using System.ComponentModel;
 using Windows.UI.Xaml;
 
 #if WINDOWS_UWP
@@ -11,6 +12,9 @@ namespace Xamarin.Forms.Platform.WinRT
 {
        public class ActivityIndicatorRenderer : ViewRenderer<ActivityIndicator, Windows.UI.Xaml.Controls.ProgressBar>
        {
+#if !WINDOWS_UWP
+               Windows.UI.Xaml.Media.SolidColorBrush _resourceBrush;
+#endif
                object _foregroundDefault;
 
                protected override void OnElementChanged(ElementChangedEventArgs<ActivityIndicator> e)
@@ -43,20 +47,34 @@ namespace Xamarin.Forms.Platform.WinRT
 
                void OnControlLoaded(object sender, RoutedEventArgs routedEventArgs)
                {
+#if !WINDOWS_UWP
+                       _resourceBrush = (Control.Resources["ProgressBarIndeterminateForegroundThemeBrush"] as Windows.UI.Xaml.Media.SolidColorBrush);
+                       _foregroundDefault = _resourceBrush.Color;
+#else
                        _foregroundDefault = Control.GetForegroundCache();
+#endif
                        UpdateColor();
                }
 
                void UpdateColor()
                {
                        Color color = Element.Color;
+
                        if (color.IsDefault)
                        {
+#if !WINDOWS_UWP
+                               _resourceBrush.Color = (Windows.UI.Color) _foregroundDefault;
+#else
                                Control.RestoreForegroundCache(_foregroundDefault);
+#endif
                        }
                        else
                        {
+#if !WINDOWS_UWP
+                               _resourceBrush.Color = color.ToWindowsColor();
+#else
                                Control.Foreground = color.ToBrush();
+#endif
                        }
                }