Fixed iOS

build/Rx.props

@@ -5,6 +5,5 @@
     <PackageReference Include="System.Reactive.Interfaces" Version="3.1.1" />
     <PackageReference Include="System.Reactive.Linq" Version="3.1.1" />
     <PackageReference Include="System.Reactive.PlatformServices" Version="3.1.1" />
-    <PackageReference Condition="$(TargetFramework.StartsWith('net4'))" Include="System.Reactive.Windows.Threading" Version="3.1.1" />
   </ItemGroup>
 </Project>

samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj

@@ -170,15 +170,14 @@
       <Name>Avalonia.Themes.Default</Name>
     </ProjectReference>
     <ProjectReference Include="..\..\src\Skia\Avalonia.Skia\Avalonia.Skia.csproj">
-      <Project>{D2D3083-71DD-4CC9-8907-39A0D86FB322}</Project>
+      <Project>{7d2d3083-71dd-4cc9-8907-39a0d86fb322}</Project>
       <Name>Avalonia.Skia</Name>
-      <IsAppExtension>false</IsAppExtension>
-      <IsWatchApp>false</IsWatchApp>
     </ProjectReference>
     <ProjectReference Include="..\ControlCatalog\ControlCatalog.csproj">
       <Project>{d0a739b9-3c68-4ba6-a328-41606954b6bd}</Project>
       <Name>ControlCatalog</Name>
     </ProjectReference>
   </ItemGroup>
+  <Import Project="..\..\build\Sprache.props" />
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
 </Project>

src/iOS/Avalonia.iOS/EmulatedFramebuffer.cs

@@ -16,11 +16,15 @@ namespace Avalonia.iOS
     /// </summary>
     class EmulatedFramebuffer : ILockedFramebuffer
     {
+        private nfloat _viewWidth;
+        private nfloat _viewHeight;
 
         public EmulatedFramebuffer(UIView view)
         {
             var factor = (int) UIScreen.MainScreen.Scale;
             var frame = view.Frame;
+            _viewWidth = frame.Width;
+            _viewHeight = frame.Height;
             Width = (int) frame.Width * factor;
             Height = (int) frame.Height * factor;
             RowBytes = Width * 4;
@@ -41,9 +45,9 @@ namespace Avalonia.iOS
             using (var context = UIGraphics.GetCurrentContext())
             {
                 // flip the image for CGContext.DrawImage
-                context.TranslateCTM(0, Height);
+                context.TranslateCTM(0, _viewHeight);
                 context.ScaleCTM(1, -1);
-                context.DrawImage(new CGRect(0, 0, Width, Height), image);
+                context.DrawImage(new CGRect(0, 0, _viewWidth, _viewHeight), image);
             }
             Marshal.FreeHGlobal(Address);
             Address = IntPtr.Zero;
@@ -57,3 +61,4 @@ namespace Avalonia.iOS
         public PixelFormat Format { get; }
     }
 }
+