[Android] Fix Flickering issue when calling Navigation.PopAsync

src/Controls/src/Core/NavigationPage/NavigationPage.cs

@@ -402,9 +402,6 @@ void FireAppearing(Page page)
 		void RemoveFromInnerChildren(Element page)
 		{
 			InternalChildren.Remove(page);
-
-			// TODO For NET9 we should remove this because the DisconnectHandlers will take care of it
-			page.Handler = null;
 		}
 
 		void SafePop()

src/Controls/tests/DeviceTests/Elements/FlyoutPage/FlyoutPageTests.cs

@@ -46,25 +46,6 @@ void SetupBuilder()
 			});
 		}
 
-		[Theory]
-		[ClassData(typeof(FlyoutPageLayoutBehaviorTestCases))]
-		public async Task PoppingFlyoutPageDoesntCrash(Type flyoutPageType)
-		{
-			SetupBuilder();
-			var navPage = new NavigationPage(new ContentPage()) { Title = "App Page" };
-
-			await CreateHandlerAndAddToWindow<WindowHandlerStub>(new Window(navPage), async (handler) =>
-			{
-				var flyoutPage = CreateFlyoutPage(
-					flyoutPageType,
-					new NavigationPage(new ContentPage() { Content = new Border(), Title = "Detail" }),
-					new ContentPage() { Title = "Flyout" });
-
-				await navPage.PushAsync(flyoutPage);
-				await navPage.PopAsync();
-			});
-		}
-
 		[Theory]
 		[ClassData(typeof(FlyoutPageLayoutBehaviorTestCases))]
 		public async Task SwappingDetailPageWorksForSplitFlyoutBehavior(Type flyoutPageType)

src/Controls/tests/TestCases.HostApp/Issues/Issue10274.cs

@@ -0,0 +1,91 @@
+namespace Maui.Controls.Sample.Issues
+{
+	[XamlCompilation(XamlCompilationOptions.Compile)]
+	[Issue(IssueTracker.Github, 10274, "MAUI Flyout does not work on Android when not using Shell", PlatformAffected.Android)]
+	public class Issue10274 : NavigationPage
+	{
+		public Issue10274() : base(new MainPage())
+		{
+
+		}
+
+		public class MainPage : ContentPage
+		{
+			public MainPage()
+			{
+				var button = new Button
+				{
+					Text = "Navigate to Flyout Page",
+					AutomationId = "mainPageButton"
+				};
+
+				button.Clicked += OnNavigateToFlyoutPageClicked;
+
+				var label = new Label
+				{
+					Text = "This is MainPage",
+					AutomationId = "mainPageLabel"
+				};
+
+				Content = new StackLayout
+				{
+					Padding = new Thickness(20),
+					Children = { label, button }
+				};
+			}
+			private async void OnNavigateToFlyoutPageClicked(object sender, EventArgs e)
+			{
+				await Navigation.PushAsync(new CustomFlyoutPage());
+			}
+		}
+
+		public class CustomFlyoutPage : FlyoutPage
+		{
+			public CustomFlyoutPage()
+			{
+				Flyout = new ContentPage
+				{
+					Title = "Flyout",
+					Content = new StackLayout
+					{
+						Padding = new Thickness(20),
+						Children =
+						{
+							new Label { Text = "This is the Flyout page." }
+						}
+					}
+				};
+
+				var button = new Button
+				{
+					Text = "Go Back",
+					AutomationId = "flyoutPageButton"
+				};
+				button.Clicked += OnGoBackClicked;
+
+				var label = new Label
+				{
+					Text = "This is FlyoutPage",
+					AutomationId = "flyoutPageLabel"
+				};
+
+				var detailPage = new ContentPage
+				{
+					Title = "Detail",
+					Content = new StackLayout
+					{
+						Padding = new Thickness(20),
+						Children = { label, button }
+					}
+				};
+
+				Detail = new NavigationPage(detailPage);
+			}
+
+			private async void OnGoBackClicked(object sender, EventArgs e)
+			{
+				await Navigation.PopAsync();
+			}
+		}
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue10274.cs

@@ -0,0 +1,31 @@
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues
+{
+    public class Issue10274 : _IssuesUITest
+    {
+		public Issue10274(TestDevice device): base(device)
+		{
+		}
+
+		public override string Issue => "MAUI Flyout does not work on Android when not using Shell";
+
+		[Test]
+		[Category(UITestCategories.FlyoutPage)]
+		public void FlyoutPageNavigation()
+		{
+			App.WaitForElement("mainPageButton");
+			App.Tap("mainPageButton"); // Navigate to FlyoutPage using PushAsync()
+
+			var flyoutLabel = App.WaitForElement("flyoutPageLabel");
+			Assert.That(flyoutLabel.GetText(), Is.EqualTo("This is FlyoutPage"));
+
+			App.Tap("flyoutPageButton"); // Navigate to MainPage using PopAsync()
+
+			var mainLabel = App.WaitForElement("mainPageLabel");
+			Assert.That(mainLabel.GetText(), Is.EqualTo("This is MainPage"));
+		}
+	}
+}