Fix/dark light mode switch

.gitignore

@@ -348,3 +348,14 @@ MigrationBackup/
 
 # Ionide (cross platform F# VS Code tools) working folder
 .ionide/
+
+# System Files
+.DS_Store
+Thumbs.db
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json

src/Skolplattformen.ElevApp/App.xaml.cs

@@ -1,5 +1,14 @@
-using Skolplattformen.ElevApp.Resources.Themes;
+
 
+using Skolplattformen.ElevApp.Resources.Themes;
+#if __IOS__
+using ObjCRuntime;
+using UIKit;
+using Foundation;
+#endif
+#if __ANDROID__
+using Android.Content.Res;
+#endif
 
 namespace Skolplattformen.ElevApp;
 
@@ -20,23 +29,69 @@ public App()
 
     }
 
+    protected override void OnResume()
+         {
+        SwitchTheme();
+    }
+
     private void SwitchTheme()
     {
         ICollection<ResourceDictionary> mergedDictionaries = Application.Current.Resources.MergedDictionaries;
         if (mergedDictionaries != null)
         {
             mergedDictionaries.Clear();
 
-            switch (Application.Current.RequestedTheme)
+            switch (MyWorkingRequestedTheme)
             {
                 case AppTheme.Dark:
                     mergedDictionaries.Add(new DarkTheme());
+                    Application.Current.UserAppTheme = AppTheme.Dark;
                     break;
                 //  case AppTheme.Light:
                 default:
                     mergedDictionaries.Add(new LightTheme());
+                    Application.Current.UserAppTheme = AppTheme.Light;
+
                     break;
             }
+
         }
     }
+
+    // Below are fixes to make MAUI switch theme
+    // https://github.com/dotnet/maui/issues/10729
+
+#if __IOS__
+private AppTheme MyWorkingRequestedTheme
+		{
+			get
+			{
+				if ((OperatingSystem.IsIOS() && !OperatingSystem.IsIOSVersionAtLeast(13, 0)) || (OperatingSystem.IsTvOS() && !OperatingSystem.IsTvOSVersionAtLeast(13, 0)))
+					return AppTheme.Unspecified;
+
+				var traits = 
+					MainThread.InvokeOnMainThreadAsync(() => WindowStateManager.Default.GetCurrentUIViewController()?.TraitCollection)
+                        .GetAwaiter().GetResult() ??
+					UITraitCollection.CurrentTraitCollection;
+
+				var uiStyle = traits.UserInterfaceStyle;
+
+				return uiStyle switch
+				{
+					UIUserInterfaceStyle.Light => AppTheme.Light,
+					UIUserInterfaceStyle.Dark => AppTheme.Dark,
+					_ => AppTheme.Unspecified
+				};
+			}
+		}
+#elif __ANDROID__
+    public AppTheme MyWorkingRequestedTheme => (Android.App.Application.Context.Resources.Configuration.UiMode & UiMode.NightMask) switch
+    {
+        UiMode.NightYes => AppTheme.Dark,
+        UiMode.NightNo => AppTheme.Light,
+        _ => AppTheme.Unspecified
+    };
+#else
+    public AppTheme MyWorkingRequestedTheme => Application.Current.RequestedTheme;
+#endif
 }