Create Window Specific Orientation Extensions

src/Controls/src/Core/FlyoutPage.cs

@@ -166,7 +166,7 @@ bool IFlyoutPageController.ShouldShowSplitMode
 					return false;
 
 				FlyoutLayoutBehavior behavior = FlyoutLayoutBehavior;
-				var orientation = DeviceDisplay.MainDisplayInfo.Orientation;
+				var orientation = Window.GetOrientation();
 
 				bool isSplitOnLandscape = (behavior == FlyoutLayoutBehavior.SplitOnLandscape || behavior == FlyoutLayoutBehavior.Default) && orientation.IsLandscape();
 				bool isSplitOnPortrait = behavior == FlyoutLayoutBehavior.SplitOnPortrait && orientation.IsPortrait();

src/Controls/tests/Core.UnitTests/FlyoutPageUnitTests.cs

@@ -281,7 +281,7 @@ public void ThrowsInSetIsPresentOnSplitModeOnTablet()
 		}
 
 		[Test]
-		public void ThorwsInSetIsPresentOnSplitPortraitModeOnTablet()
+		public void ThrowsInSetIsPresentOnSplitPortraitModeOnTablet()
 		{
 			mockDeviceInfo.Idiom = DeviceIdiom.Tablet;
 			mockDeviceDisplay.SetMainDisplayOrientation(DisplayOrientation.Portrait);
@@ -290,7 +290,6 @@ public void ThorwsInSetIsPresentOnSplitPortraitModeOnTablet()
 			{
 				Flyout = new ContentPage { Content = new View(), IsPlatformEnabled = true, Title = "Foo" },
 				Detail = new ContentPage { Content = new View(), IsPlatformEnabled = true },
-				IsPlatformEnabled = true,
 				FlyoutLayoutBehavior = FlyoutLayoutBehavior.SplitOnPortrait
 			};
 

src/Core/src/Platform/Android/WindowExtensions.cs

@@ -0,0 +1,24 @@
+using Android.App;
+using Android.Content.Res;
+using Microsoft.Maui.Devices;
+using Microsoft.Maui.Platform;
+
+namespace Microsoft.Maui
+{
+	public static partial class WindowExtensions
+	{
+		internal static DisplayOrientation GetOrientation(this IWindow? window)
+		{
+			if (window == null)
+				return DeviceDisplay.Current.MainDisplayInfo.Orientation;
+
+			return window.Handler?.MauiContext?.GetPlatformWindow()?.Resources?.Configuration?.Orientation switch
+			{
+				Orientation.Landscape => DisplayOrientation.Landscape,
+				Orientation.Portrait => DisplayOrientation.Portrait,
+				Orientation.Square => DisplayOrientation.Portrait,
+				_ => DisplayOrientation.Unknown
+			};
+		}
+	}
+}

src/Core/src/Platform/Standard/WindowExtensions.cs

@@ -0,0 +1,10 @@
+using Microsoft.Maui.Devices;
+
+namespace Microsoft.Maui
+{
+	public static partial class WindowExtensions
+	{
+		internal static DisplayOrientation GetOrientation(this IWindow? window) =>
+			DeviceDisplay.Current.MainDisplayInfo.Orientation;
+	}
+}

src/Core/src/Platform/Tizen/WindowExtensions.cs

@@ -3,6 +3,7 @@
 using System.Diagnostics;
 using System.Threading.Tasks;
 using ElmSharp;
+using Microsoft.Maui.ApplicationModel;
 using Tizen.UIExtensions.Common;
 using Tizen.UIExtensions.ElmSharp;
 using ELayout = ElmSharp.Layout;
@@ -110,5 +111,20 @@ static void OnBackButtonPressed(Window window)
 				s_windowCloseRequestHandler[window].Invoke();
 		}
 
+		internal static Devices.DisplayOrientation GetOrientation(this IWindow? window)
+		{
+			if (window == null)
+				return Devices.DeviceDisplay.Current.MainDisplayInfo.Orientation;
+
+			bool isTV = Elementary.GetProfile() == "tv";
+			return window.Handler?.MauiContext?.GetPlatformWindow()?.Rotation switch
+			{
+				0 => isTV ? Devices.DisplayOrientation.Landscape : Devices.DisplayOrientation.Portrait,
+				90 => isTV ? Devices.DisplayOrientation.Portrait : Devices.DisplayOrientation.Landscape,
+				180 => isTV ? Devices.DisplayOrientation.Landscape : Devices.DisplayOrientation.Portrait,
+				270 => isTV ? Devices.DisplayOrientation.Portrait : Devices.DisplayOrientation.Landscape,
+				_ => Devices.DisplayOrientation.Unknown
+			};
+		}
 	}
 }

src/Core/src/Platform/Windows/WindowExtensions.cs

@@ -3,6 +3,7 @@
 using System.Threading.Tasks;
 using Microsoft.Maui.Media;
 using WinRT.Interop;
+using Windows.Graphics.Display;
 
 namespace Microsoft.Maui.Platform
 {
@@ -60,5 +61,28 @@ public static float GetDisplayDensity(this UI.Xaml.Window platformWindow)
 			var windowId = UI.Win32Interop.GetWindowIdFromWindow(hwnd);
 			return UI.Windowing.AppWindow.GetFromWindowId(windowId);
 		}
+
+		internal static DisplayOrientation GetOrientation(this IWindow? window)
+		{
+			if (window == null)
+				return DeviceDisplay.Current.MainDisplayInfo.Orientation;
+
+			var appWindow = window.Handler?.MauiContext?.GetPlatformWindow()?.GetAppWindow();
+
+			if (appWindow == null)
+				return DisplayOrientation.Unknown;
+
+			DisplayOrientations orientationEnum;
+			int theScreenWidth = appWindow.Size.Width;
+			int theScreenHeight = appWindow.Size.Height;
+			if (theScreenWidth > theScreenHeight)
+				orientationEnum = DisplayOrientations.Landscape;
+			else
+				orientationEnum = DisplayOrientations.Portrait;
+
+			return orientationEnum == DisplayOrientations.Landscape
+				? DisplayOrientation.Landscape
+				: DisplayOrientation.Portrait;
+		}
 	}
 }

src/Core/src/Platform/iOS/WindowExtensions.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Text;
 using System.Threading.Tasks;
+using Microsoft.Maui.Devices;
 using UIKit;
 
 namespace Microsoft.Maui.Platform
@@ -29,5 +30,8 @@ public static partial class WindowExtensions
 
 		public static float GetDisplayDensity(this UIWindow uiWindow) =>
 			(float)(uiWindow.Screen?.Scale ?? new nfloat(1.0f));
+
+		internal static DisplayOrientation GetOrientation(this IWindow? window) =>
+			DeviceDisplay.Current.MainDisplayInfo.Orientation;
 	}
 }