Several Android TV compatibility improvements

samples/ControlCatalog.Android/ControlCatalog.Android.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net7.0-android</TargetFramework>
+    <TargetFramework>net8.0-android</TargetFramework>
     <SupportedOSPlatformVersion>21</SupportedOSPlatformVersion>
     <OutputType>Exe</OutputType>
     <Nullable>enable</Nullable>

samples/ControlCatalog.Android/MainActivity.cs

@@ -4,11 +4,16 @@ using Avalonia;
 using Avalonia.Android;
 using static Android.Content.Intent;
 
+// leanback and touchscreen are required for the Android TV.
+[assembly: UsesFeature("android.software.leanback", Required = false)]
+[assembly: UsesFeature("android.hardware.touchscreen", Required = false)]
+
 namespace ControlCatalog.Android
 {
     [Activity(Label = "ControlCatalog.Android", Theme = "@style/MyTheme.NoActionBar", Icon = "@drawable/icon", MainLauncher = true, Exported = true, ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.ScreenSize | ConfigChanges.UiMode)]
-    // IntentFilter are here to test IActivatableApplicationLifetime 
-    [IntentFilter(new [] { ActionView }, Categories = new [] { CategoryDefault, CategoryBrowsable }, DataScheme = "avln" )]
+    // CategoryBrowsable and DataScheme are required for Protocol activation.
+    // CategoryLeanbackLauncher is required for Android TV.
+    [IntentFilter(new [] { ActionView }, Categories = new [] { CategoryDefault, CategoryBrowsable, CategoryLeanbackLauncher }, DataScheme = "avln" )]
     public class MainActivity : AvaloniaMainActivity<App>
     {
         protected override AppBuilder CustomizeAppBuilder(AppBuilder builder)

src/Android/Avalonia.Android/Platform/Input/AndroidKeyboardDevice.cs

@@ -31,10 +31,6 @@ namespace Avalonia.Android.Platform.Input
             { Keycode.PageDown, Key.PageDown },
             { Keycode.MoveEnd, Key.End },
             { Keycode.MoveHome, Key.Home },
-            { Keycode.DpadLeft, Key.Left },
-            { Keycode.DpadUp, Key.Up },
-            { Keycode.DpadRight, Key.Right },
-            { Keycode.DpadDown, Key.Down },
            // { Keycode.ButtonSelect?, Key.Select },
            // { Keycode.print?, Key.Print },
             //{ Keycode.execute?, Key.Execute },
@@ -209,7 +205,15 @@ namespace Avalonia.Android.Platform.Input
             //{ Keycode.?, Key.DbeEnterDialogConversionMode }
             //{ Keycode.?, Key.OemClear }
             //{ Keycode.?, Key.DeadCharProcessed }
-            { Keycode.Backslash, Key.OemBackslash }
+            { Keycode.Backslash, Key.OemBackslash },
+
+            // Loosely mapping DPad keys to Avalonia keys
+            { Keycode.Back, Key.Escape },
+            { Keycode.DpadCenter, Key.Space },
+            { Keycode.DpadLeft, Key.Left },
+            { Keycode.DpadUp, Key.Up },
+            { Keycode.DpadRight, Key.Right },
+            { Keycode.DpadDown, Key.Down }
         };
 
         internal static Key ConvertKey(Keycode key)

src/Android/Avalonia.Android/Platform/Specific/Helpers/AndroidKeyboardEventsHelper.cs

@@ -129,15 +129,20 @@ namespace Avalonia.Android.Platform.Specific.Helpers
         private KeyDeviceType GetKeyDeviceType(KeyEvent e)
         {
             var source = e.Device?.Sources ?? InputSourceType.Unknown;
-            if (source is InputSourceType.Joystick or
-                InputSourceType.ClassJoystick or
-                InputSourceType.Gamepad)
-                return KeyDeviceType.Gamepad;
 
-            if (source == InputSourceType.Dpad && e.Device?.KeyboardType == InputKeyboardType.NonAlphabetic)
+            // Remote controller reports itself as "DPad | Keyboard", which is confusing,
+            // so we need to double-check KeyboardType as well.
+
+            if (source.HasAnyFlag(InputSourceType.Dpad)
+                && e.Device?.KeyboardType == InputKeyboardType.NonAlphabetic)
                 return KeyDeviceType.Remote;
 
-            return KeyDeviceType.Keyboard;
+            // ReSharper disable BitwiseOperatorOnEnumWithoutFlags - it IS flags enum under the hood.
+            if (source.HasAnyFlag(InputSourceType.Joystick | InputSourceType.Gamepad))
+                return KeyDeviceType.Gamepad;
+            // ReSharper restore BitwiseOperatorOnEnumWithoutFlags
+
+            return KeyDeviceType.Keyboard; // fallback to the keyboard, if unknown.
         }
 
         public void Dispose()