Remove IPlatformServices.RequestedTheme and use Essentials

.nuspec/maui-blazor.aotprofile.txt

@@ -1697,8 +1697,8 @@ Methods:
 	Microsoft.Maui.Controls.IVisual Microsoft.Maui.Controls.VisualMarker:get_MatchParent ()
 	Microsoft.Maui.Controls.LayoutOptions Microsoft.Maui.Controls.View:get_HorizontalOptions ()
 	Microsoft.Maui.Controls.LayoutOptions Microsoft.Maui.Controls.View:get_VerticalOptions ()
-	Microsoft.Maui.Controls.OSAppTheme Microsoft.Maui.Controls.Application:get_RequestedTheme ()
-	Microsoft.Maui.Controls.OSAppTheme Microsoft.Maui.Controls.Compatibility.Forms/AndroidPlatformServices:get_RequestedTheme ()
+	Microsoft.Maui.Controls.AppTheme Microsoft.Maui.Controls.Application:get_RequestedTheme ()
+	Microsoft.Maui.Controls.AppTheme Microsoft.Maui.Controls.Compatibility.Forms/AndroidPlatformServices:get_RequestedTheme ()
 	Microsoft.Maui.Controls.Page Microsoft.Maui.Controls.Application:get_MainPage ()
 	Microsoft.Maui.Controls.Page Microsoft.Maui.Controls.Window:get_Page ()
 	Microsoft.Maui.Controls.ResourceDictionary Microsoft.Maui.Controls.Application:get_Resources ()

.nuspec/maui.aotprofile.txt

@@ -1395,8 +1395,8 @@ Methods:
 	Microsoft.Maui.Controls.IVisual Microsoft.Maui.Controls.VisualMarker:get_MatchParent ()
 	Microsoft.Maui.Controls.LayoutOptions Microsoft.Maui.Controls.View:get_HorizontalOptions ()
 	Microsoft.Maui.Controls.LayoutOptions Microsoft.Maui.Controls.View:get_VerticalOptions ()
-	Microsoft.Maui.Controls.OSAppTheme Microsoft.Maui.Controls.Application:get_RequestedTheme ()
-	Microsoft.Maui.Controls.OSAppTheme Microsoft.Maui.Controls.Compatibility.Forms/AndroidPlatformServices:get_RequestedTheme ()
+	Microsoft.Maui.Controls.AppTheme Microsoft.Maui.Controls.Application:get_RequestedTheme ()
+	Microsoft.Maui.Controls.AppTheme Microsoft.Maui.Controls.Compatibility.Forms/AndroidPlatformServices:get_RequestedTheme ()
 	Microsoft.Maui.Controls.Page Microsoft.Maui.Controls.Application:get_MainPage ()
 	Microsoft.Maui.Controls.Page Microsoft.Maui.Controls.Window:get_Page ()
 	Microsoft.Maui.Controls.ResourceDictionary Microsoft.Maui.Controls.Application:get_Resources ()

src/Compatibility/Core/src/Android/AppCompat/FormsAppCompatActivity.cs

@@ -80,7 +80,7 @@ public override void OnConfigurationChanged(Configuration newConfig)
 			base.OnConfigurationChanged(newConfig);
 			ConfigurationChanged?.Invoke(this, new EventArgs());
 
-			Microsoft.Maui.Controls.Application.Current?.TriggerThemeChanged(new AppThemeChangedEventArgs(Microsoft.Maui.Controls.Application.Current.RequestedTheme));
+			Microsoft.Maui.Controls.Application.Current?.ThemeChanged();
 		}
 
 		public override bool OnOptionsItemSelected(IMenuItem item)

src/Compatibility/Core/src/Android/Forms.cs

@@ -227,9 +227,7 @@ static void SetupInit(
 			// because AndroidPlatformServices needs a current activity to launch URIs from
 			Profile.FramePartition("Device.PlatformServices");
 
-			var androidServices = new AndroidPlatformServices(activity);
-
-			Device.PlatformServices = androidServices;
+			Device.DefaultRendererAssembly = typeof(Forms).Assembly;
 
 			Profile.FramePartition("RegisterAll");
 
@@ -317,32 +315,5 @@ protected override Expression VisitMember(MemberExpression node)
 				return base.VisitMember(node);
 			}
 		}
-
-		class AndroidPlatformServices : IPlatformServices
-		{
-			readonly Context _context;
-
-			public AndroidPlatformServices(Context context)
-			{
-				_context = context;
-			}
-
-			public OSAppTheme RequestedTheme
-			{
-				get
-				{
-					var nightMode = _context.Resources.Configuration.UiMode & UiMode.NightMask;
-					switch (nightMode)
-					{
-						case UiMode.NightYes:
-							return OSAppTheme.Dark;
-						case UiMode.NightNo:
-							return OSAppTheme.Light;
-						default:
-							return OSAppTheme.Unspecified;
-					};
-				}
-			}
-		}
 	}
 }

src/Compatibility/Core/src/GTK/GtkPlatformServices.cs

@@ -68,6 +68,6 @@ public SizeRequest GetNativeSize(VisualElement view, double widthConstraint, dou
 			return Platform.GetNativeSize(view, widthConstraint, heightConstraint);
 		}
 
-		public OSAppTheme RequestedTheme => OSAppTheme.Unspecified;
+		public AppTheme RequestedTheme => AppTheme.Unspecified;
 	}
 }

src/Compatibility/Core/src/Handlers/Shell/Android/ShellRenderer.cs

@@ -10,6 +10,7 @@
 using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Controls.Platform;
 using Microsoft.Maui.Controls.Platform.Compatibility;
+using Microsoft.Maui.Essentials;
 using Microsoft.Maui.Graphics;
 using AColor = Android.Graphics.Color;
 using ARect = Android.Graphics.Rect;
@@ -98,7 +99,7 @@ void IAppearanceObserver.OnAppearanceChanged(ShellAppearance appearance)
 		public static readonly Color DefaultUnselectedColor = Color.FromRgba(255, 255, 255, 180);
 		internal static Color DefaultBottomNavigationViewBackgroundColor => ResolveThemeColor(Colors.White, Color.FromArgb("#1B3147"));
 
-		internal static bool IsDarkTheme => (Application.Current?.RequestedTheme == OSAppTheme.Dark);
+		internal static bool IsDarkTheme => (Application.Current?.RequestedTheme == AppTheme.Dark);
 
 		static Color ResolveThemeColor(Color light, Color dark)
 		{

src/Compatibility/Core/src/Tizen/TizenPlatformServices.cs

@@ -108,7 +108,7 @@ public SizeRequest GetNativeSize(VisualElement view, double widthConstraint, dou
 			return Platform.GetNativeSize(view, widthConstraint, heightConstraint);
 		}
 
-		public OSAppTheme RequestedTheme => OSAppTheme.Unspecified;
+		public AppTheme RequestedTheme => AppTheme.Unspecified;
 
 		static MD5 CreateChecksum()
 		{

src/Compatibility/Core/src/WPF/WPFPlatformServices.cs

@@ -92,6 +92,6 @@ public SizeRequest GetNativeSize(VisualElement view, double widthConstraint, dou
 			return Platform.GetNativeSize(view, widthConstraint, heightConstraint);
 		}
 
-		public OSAppTheme RequestedTheme => OSAppTheme.Unspecified;
+		public AppTheme RequestedTheme => AppTheme.Unspecified;
 	}
 }

src/Compatibility/Core/src/Windows/Forms.cs

@@ -56,9 +56,7 @@ static void SetupInit(
 
 			Registrar.ExtraAssemblies = rendererAssemblies?.ToArray();
 
-			var platformServices = new WindowsPlatformServices();
-
-			Device.PlatformServices = platformServices;
+			Device.DefaultRendererAssembly = typeof(Forms).Assembly;
 
 			if (mainWindow != null)
 			{

src/Compatibility/Core/src/iOS/Forms.cs

@@ -159,7 +159,7 @@ static void SetupInit(IMauiContext context, InitializationOptions? maybeOptions
 					var aquaAppearance = NSAppearance.GetAppearance(interfaceStyle == "Dark" ? NSAppearance.NameDarkAqua : NSAppearance.NameAqua);
 					NSApplication.SharedApplication.Appearance = aquaAppearance;
 
-					Application.Current?.TriggerThemeChanged(new AppThemeChangedEventArgs(interfaceStyle == "Dark" ? OSAppTheme.Dark : OSAppTheme.Light));
+					Application.Current?.TriggerThemeChanged(new AppThemeChangedEventArgs(interfaceStyle == "Dark" ? AppTheme.Dark : AppTheme.Light));
 				});
 			}
 
@@ -172,9 +172,8 @@ static void SetupInit(IMauiContext context, InitializationOptions? maybeOptions
 				NSApplication.SharedApplication.Appearance = aquaAppearance;
 			}
 #endif
-			var platformServices = new IOSPlatformServices();
 
-			Device.PlatformServices = platformServices;
+			Device.DefaultRendererAssembly = typeof(Forms).Assembly;
 
 			if (maybeOptions?.Flags.HasFlag(InitializationFlags.SkipRenderers) != true)
 				RegisterCompatRenderers(context);
@@ -234,87 +233,5 @@ protected override Expression VisitMember(MemberExpression node)
 				return base.VisitMember(node);
 			}
 		}
-
-		class IOSPlatformServices : IPlatformServices
-		{
-			public OSAppTheme RequestedTheme
-			{
-				get
-				{
-#if __IOS__ || __TVOS__
-					if (!IsiOS13OrNewer)
-						return OSAppTheme.Unspecified;
-					var uiStyle = GetCurrentUIViewController()?.TraitCollection?.UserInterfaceStyle ??
-						UITraitCollection.CurrentTraitCollection.UserInterfaceStyle;
-
-					switch (uiStyle)
-					{
-						case UIUserInterfaceStyle.Light:
-							return OSAppTheme.Light;
-						case UIUserInterfaceStyle.Dark:
-							return OSAppTheme.Dark;
-						default:
-							return OSAppTheme.Unspecified;
-					};
-#else
-					return AppearanceIsDark() ? OSAppTheme.Dark : OSAppTheme.Light;
-#endif
-				}
-			}
-
-#if __MACOS__
-			bool AppearanceIsDark()
-			{
-				if (IsMojaveOrNewer)
-				{
-					var appearance = NSApplication.SharedApplication.EffectiveAppearance;
-					var matchedAppearance = appearance.FindBestMatch(new string[] { NSAppearance.NameAqua, NSAppearance.NameDarkAqua });
-
-					return matchedAppearance == NSAppearance.NameDarkAqua;
-				}
-				else
-				{
-					return false;
-				}
-			}
-#endif
-
-#if __IOS__ || __TVOS__
-
-			static UIViewController GetCurrentUIViewController() =>
-				GetCurrentViewController(false);
-
-			static UIViewController GetCurrentViewController(bool throwIfNull = true)
-			{
-				UIViewController viewController = null;
-
-				var window = UIApplication.SharedApplication.GetKeyWindow();
-
-				if (window != null && window.WindowLevel == UIWindowLevel.Normal)
-					viewController = window.RootViewController;
-
-				if (viewController == null)
-				{
-					window = UIApplication.SharedApplication
-						.Windows
-						.OrderByDescending(w => w.WindowLevel)
-						.FirstOrDefault(w => w.RootViewController != null && w.WindowLevel == UIWindowLevel.Normal);
-
-					if (window == null && throwIfNull)
-						throw new InvalidOperationException("Could not find current view controller.");
-					else
-						viewController = window?.RootViewController;
-				}
-
-				while (viewController?.PresentedViewController != null)
-					viewController = viewController.PresentedViewController;
-
-				if (throwIfNull && viewController == null)
-					throw new InvalidOperationException("Could not find current view controller.");
-
-				return viewController;
-			}
-#endif
-		}
 	}
 }

src/Compatibility/Core/src/iOS/Renderers/PageRenderer.cs

@@ -322,7 +322,7 @@ public override void TraitCollectionDidChange(UITraitCollection previousTraitCol
 			if (Forms.IsiOS13OrNewer &&
 				previousTraitCollection.UserInterfaceStyle != TraitCollection.UserInterfaceStyle &&
 				UIApplication.SharedApplication.ApplicationState != UIApplicationState.Background)
-				Application.Current?.TriggerThemeChanged(new AppThemeChangedEventArgs(Application.Current.RequestedTheme));
+				Application.Current?.ThemeChanged();
 		}
 
 		bool ShouldUseSafeArea()

src/Controls/DualScreen/test/MockPlatformServices.cs

@@ -126,7 +126,7 @@ public SizeRequest GetNativeSize(VisualElement view, double widthConstraint, dou
 			return new SizeRequest(new Size(100, 20));
 		}
 
-		public OSAppTheme RequestedTheme => OSAppTheme.Unspecified;
+		public AppTheme RequestedTheme => AppTheme.Unspecified;
 	}
 
 	internal class MockDeserializer : Internals.IDeserializer

src/Controls/samples/Controls.Sample/XamlApp.xaml.cs

@@ -19,6 +19,8 @@ public XamlApp(IServiceProvider services, ITextService textService)
 
 			Debug.WriteLine($"The injected text service had a message: '{textService.GetText()}'");
 
+			Debug.WriteLine($"Current app theme: {RequestedTheme}");
+
 			RequestedThemeChanged += (sender, args) =>
 			{
 				// Respond to the theme change

src/Controls/src/Core/AppThemeBinding.cs

@@ -1,4 +1,5 @@
 using System;
+using Microsoft.Maui.Essentials;
 
 namespace Microsoft.Maui.Controls
 {
@@ -79,9 +80,9 @@ object GetValue()
 			switch (Application.Current.RequestedTheme)
 			{
 				default:
-				case OSAppTheme.Light:
+				case AppTheme.Light:
 					return _isLightSet ? Light : Default;
-				case OSAppTheme.Dark:
+				case AppTheme.Dark:
 					return _isDarkSet ? Dark : Default;
 			}
 		}

src/Controls/src/Core/AppThemeChangedEventArgs.cs

@@ -1,15 +1,16 @@
 using System;
+using Microsoft.Maui.Essentials;
 
 namespace Microsoft.Maui.Controls
 {
 	/// <include file="../../docs/Microsoft.Maui.Controls/AppThemeChangedEventArgs.xml" path="Type[@FullName='Microsoft.Maui.Controls.AppThemeChangedEventArgs']/Docs" />
 	public class AppThemeChangedEventArgs : EventArgs
 	{
 		/// <include file="../../docs/Microsoft.Maui.Controls/AppThemeChangedEventArgs.xml" path="//Member[@MemberName='.ctor']/Docs" />
-		public AppThemeChangedEventArgs(OSAppTheme appTheme) =>
+		public AppThemeChangedEventArgs(AppTheme appTheme) =>
 			RequestedTheme = appTheme;
 
 		/// <include file="../../docs/Microsoft.Maui.Controls/AppThemeChangedEventArgs.xml" path="//Member[@MemberName='RequestedTheme']/Docs" />
-		public OSAppTheme RequestedTheme { get; }
+		public AppTheme RequestedTheme { get; }
 	}
 }