Use latest app builder

src/Android/Avalonia.Android/AndroidPlatform.cs

@@ -15,9 +15,9 @@ namespace Avalonia
 {
     public static class AndroidApplicationExtensions
     {
-        public static AppBuilder UseAndroid(this AppBuilder builder)
+        public static T UseAndroid<T>(this T builder) where T : AppBuilderBase<T>, new()
         {
-            builder.WindowingSubsystem = Avalonia.Android.AndroidPlatform.Initialize;
+            builder.UseWindowingSubsystem(Android.AndroidPlatform.Initialize, "Android");
             return builder;
         }
     }

src/Android/Avalonia.AndroidTestApplication/Avalonia.AndroidTestApplication.csproj

@@ -178,6 +178,10 @@
       <Project>{3e10a5fa-e8da-48b1-ad44-6a5b6cb7750f}</Project>
       <Name>Avalonia.Themes.Default</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Avalonia.DotNetFrameworkRuntime\Avalonia.DotNetFrameworkRuntime.csproj">
+      <Project>{4a1abb09-9047-4bd5-a4ad-a055e52c5ee0}</Project>
+      <Name>Avalonia.DotNetFrameworkRuntime</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\Avalonia.HtmlRenderer\Avalonia.HtmlRenderer.csproj">
       <Project>{5fb2b005-0a7f-4dad-add4-3ed01444e63d}</Project>
       <Name>Avalonia.HtmlRenderer</Name>

src/Skia/Avalonia.Skia.Android.TestApp/Avalonia.Skia.Android.TestApp.csproj

@@ -94,6 +94,10 @@
       <Project>{d2221c82-4a25-4583-9b43-d791e3f6820c}</Project>
       <Name>Avalonia.Controls</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Avalonia.DotNetFrameworkRuntime\Avalonia.DotNetFrameworkRuntime.csproj">
+      <Project>{4a1abb09-9047-4bd5-a4ad-a055e52c5ee0}</Project>
+      <Name>Avalonia.DotNetFrameworkRuntime</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\Avalonia.Input\Avalonia.Input.csproj">
       <Project>{62024b2d-53eb-4638-b26b-85eeaa54866e}</Project>
       <Name>Avalonia.Input</Name>