Avalonia.Android code cleanup.

src/Android/Avalonia.Android/AndroidPlatform.cs

@@ -29,21 +29,12 @@ namespace Avalonia
 
 namespace Avalonia.Android
 {
-    class AndroidPlatform : IPlatformSettings, IWindowingPlatform
+    class AndroidPlatform : IPlatformSettings
     {
         public static readonly AndroidPlatform Instance = new AndroidPlatform();
         public static AndroidPlatformOptions Options { get; private set; }
         public Size DoubleClickSize => new Size(4, 4);
         public TimeSpan DoubleClickTime => TimeSpan.FromMilliseconds(200);
-        public double RenderScalingFactor => _scalingFactor;
-        public double LayoutScalingFactor => _scalingFactor;
-
-        private readonly double _scalingFactor = 1;
-
-        public AndroidPlatform()
-        {
-            _scalingFactor = global::Android.App.Application.Context.Resources.DisplayMetrics.ScaledDensity;
-        }
 
         public static void Initialize(Type appType, AndroidPlatformOptions options)
         {
@@ -56,7 +47,6 @@ namespace Avalonia.Android
                 .Bind<IPlatformSettings>().ToConstant(Instance)
                 .Bind<IPlatformThreadingInterface>().ToConstant(new AndroidThreadingInterface())
                 .Bind<ISystemDialogImpl>().ToTransient<SystemDialogImpl>()
-                .Bind<IWindowingPlatform>().ToConstant(Instance)
                 .Bind<IPlatformIconLoader>().ToSingleton<PlatformIconLoader>()
                 .Bind<IRenderTimer>().ToConstant(new ChoreographerTimer())
                 .Bind<IRenderLoop>().ToConstant(new RenderLoop())
@@ -70,16 +60,6 @@ namespace Avalonia.Android
                 EglPlatformOpenGlInterface.TryInitialize();
             }
         }
-
-        public IWindowImpl CreateWindow()
-        {
-            throw new NotSupportedException();
-        }
-
-        public IWindowImpl CreateEmbeddableWindow()
-        {
-            throw new NotSupportedException();
-        }
     }
 
     public sealed class AndroidPlatformOptions

src/Android/Avalonia.Android/AndroidThreadingInterface.cs

@@ -1,25 +1,26 @@
 using System;
 using System.Reactive.Disposables;
 using System.Threading;
+
 using Android.OS;
+
 using Avalonia.Platform;
 using Avalonia.Threading;
 
+using App = Android.App.Application;
+
 namespace Avalonia.Android
 {
-    class AndroidThreadingInterface : IPlatformThreadingInterface
+    internal sealed class AndroidThreadingInterface : IPlatformThreadingInterface
     {
         private Handler _handler;
 
         public AndroidThreadingInterface()
         {
-            _handler = new Handler(global::Android.App.Application.Context.MainLooper);
+            _handler = new Handler(App.Context.MainLooper);
         }
 
-        public void RunLoop(CancellationToken cancellationToken)
-        {
-            return;
-        }
+        public void RunLoop(CancellationToken cancellationToken) => throw new NotSupportedException();
 
         public IDisposable StartTimer(DispatcherPriority priority, TimeSpan interval, Action tick)
         {
@@ -57,7 +58,7 @@ namespace Avalonia.Android
                     });
                 }
             }, null, TimeSpan.Zero, interval);
-            
+
             return Disposable.Create(() =>
             {
                 lock (l)

src/Android/Avalonia.Android/Platform/SkiaPlatform/InvalidationAwareSurfaceView.cs

@@ -43,11 +43,13 @@ namespace Avalonia.Android
             }
         }
 
+        [Obsolete("deprecated")]
         public override void Invalidate(global::Android.Graphics.Rect dirty)
         {
             Invalidate();
         }
 
+        [Obsolete("deprecated")]
         public override void Invalidate(int l, int t, int r, int b)
         {
             Invalidate();

src/Android/Avalonia.Android/app.config

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <runtime>
-    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
-      <dependentAssembly>
-        <assemblyIdentity name="System.Runtime.InteropServices.WindowsRuntime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-4.0.1.0" newVersion="4.0.1.0" />
-      </dependentAssembly>
-    </assemblyBinding>
-  </runtime>
-</configuration>