Implement touch interception for layouts on Android

src/Controls/samples/Controls.Sample/Pages/Core/InputTransparentPage.xaml

@@ -61,11 +61,10 @@
 
                 <Grid Margin="10" HeightRequest="100" BackgroundColor="LightBlue">
 
-                    <Button Text="Bottom Button" IsVisible="{Binding InputTransparent, Source={Reference testButton}}" Clicked="ClickSuccess" HorizontalOptions="Center" VerticalOptions="Center" />
-                    <Button Text="Bottom Button" IsVisible="{Binding InputTransparent, Source={Reference testButton}, Converter={StaticResource NegativeConverter}}" Clicked="ClickFail" HorizontalOptions="Center" VerticalOptions="Center" />
+                    <Button Text="Bottom Button" Clicked="ClickBottom" HorizontalOptions="Center" VerticalOptions="Center" Background="Red" />
 
                     <Grid x:Name="rootLayout">
-                        <Grid x:Name="nestedLayout">
+                        <Grid x:Name="nestedLayout" ColumnDefinitions="2*,1*">
                             <Button x:Name="testButton" Text="Test Button" Clicked="ClickSuccess" HorizontalOptions="Center" VerticalOptions="Center" />
                         </Grid>
                     </Grid>

src/Controls/samples/Controls.Sample/Pages/Core/InputTransparentPage.xaml.cs

@@ -22,5 +22,11 @@ void ClickSuccess(object sender, EventArgs e)
 			Debug.WriteLine("Success; That should have worked, and it did!");
 			DisplayAlert("Success", "That should have worked, and it did!", "OK");
 		}
+
+		void ClickBottom(object sender, EventArgs e)
+		{
+			Debug.WriteLine("Click; You clicked a bottom button.");
+			DisplayAlert("Click", "You clicked a bottom button.", "OK");
+		}
 	}
 }

src/Controls/tests/TestCases.Shared.Tests/Test.cs

@@ -720,13 +720,43 @@ public enum ImageLoading
 
 		public enum InputTransparency
 		{
-			Default,
-			IsFalse,
-			IsTrue,
+			// Single Control
+			ButtonNotSet,
+			Button,
+			TransButtonInputBlocked,
+			// Button
+			ButtonOverlay,
+			TransButtonOverlay,
+			// Image
+			ImageOverlayInputBlocked,
+			TransImageOverlay,
+			ImageBackOverlayInputBlocked,
+			TransImageBackOverlay,
+			// Label
+			LabelOverlayInputBlocked,
+			TransLabelOverlay,
+			// ActivityIndicator
+			ActivityIndicatorOverlayInputBlocked,
+			TransActivityIndicatorOverlay,
+			// ProgressBar
+			ProgressBarOverlayInputBlocked,
+			TransProgressBarOverlay,
+			// Layout
+			LayoutOverlayInputBlocked,
 			TransLayoutOverlay,
 			TransLayoutOverlayWithButton,
 			CascadeTransLayoutOverlay,
 			CascadeTransLayoutOverlayWithButton,
+			// CollectionView
+			CollectionViewItemLayoutOverlay,
+			CollectionViewItemTransLayoutOverlay,
+			CollectionViewItemButtonOverlay,
+			CollectionViewItemTransButtonOverlay,
+			// ListView
+			ListViewItemLayoutOverlay,
+			ListViewItemTransLayoutOverlay,
+			ListViewItemButtonOverlay,
+			ListViewItemTransButtonOverlay,
 		}
 
 		public static class InputTransparencyMatrix

src/Controls/tests/TestCases.Shared.Tests/Tests/Concepts/InputTransparencyGalleryTests.cs

@@ -21,7 +21,8 @@ protected override void NavigateToGallery()
 		}
 
 		[Test]
-		public void InputTransparencySimple([Values] Test.InputTransparency test) => RunTest(test.ToString());
+		public void InputTransparencySimple([Values] Test.InputTransparency test) =>
+			RunTest(test.ToString(), !test.ToString().EndsWith("InputBlocked"));
 
 		[Test]
 		[Combinatorial]
@@ -40,10 +41,10 @@ public void InputTransparencyWhenRootIsNotTransparentMatrix([Values] bool rootCa
 			var (clickable, passthru) = Test.InputTransparencyMatrix.States[(false, rootCascade, nestedTrans, nestedCascade, trans)];
 			var key = Test.InputTransparencyMatrix.GetKey(false, rootCascade, nestedTrans, nestedCascade, trans, clickable, passthru);
 
-			RunTest(key, clickable, passthru);
+			RunTest(key, clickable || passthru);
 		}
 
-		void RunTest(string test, bool? clickable = null, bool? passthru = null)
+		static void RunTest(string test, bool updatable)
 		{
 			var remote = new EventViewContainerRemote(UITestContext, test);
 			remote.GoTo(test.ToString());
@@ -55,23 +56,11 @@ void RunTest(string test, bool? clickable = null, bool? passthru = null)
 
 			var textAfterClick = remote.GetEventLabel().GetText();
 
-			if (clickable is null || passthru is null)
-			{
-				// some tests are really basic so have no need for fancy checks
-				ClassicAssert.AreEqual($"Event: {test} (SUCCESS 1)", textAfterClick);
-			}
-			else if (clickable == true || passthru == true)
+			if (updatable)
 			{
 				// if the button is clickable or taps pass through to the base button
 				ClassicAssert.AreEqual($"Event: {test} (SUCCESS 1)", textAfterClick);
 			}
-			else if (Device == TestDevice.Android)
-			{
-				// TODO: Android is broken with everything passing through so we just use that
-				// to test the bottom button was clickable
-				// https://github.com/dotnet/maui/issues/10252
-				ClassicAssert.AreEqual($"Event: {test} (SUCCESS 1)", textAfterClick);
-			}
 			else
 			{
 				// sometimes nothing can happen, so try test that

src/Controls/tests/TestCases.Shared.Tests/Tests/_ViewUITests.cs

@@ -52,6 +52,49 @@ public virtual void _IsVisible()
 
 			ClassicAssert.AreEqual(0, viewPost.Count);
 		}
-	}
 
+		[Test]
+		public virtual void _InputTransparent()
+		{
+			var remote = new LayeredViewContainerRemote (UITestContext, Test.VisualElement.InputTransparent);
+			remote.GoTo ();
+
+			var hiddenButtonClickedLabelTextPre = remote.GetLayeredLabel ().Text;
+			Assert.AreEqual ("Hidden Button (Not Clicked)", hiddenButtonClickedLabelTextPre);
+
+			remote.TapHiddenButton ();
+
+			var hiddenButtonClickedLabelTextPost = remote.GetLayeredLabel ().Text;
+			var hiddenButtonClicked = hiddenButtonClickedLabelTextPost == "Hidden Button (Clicked)";
+
+			// // Allow tests to continue by dismissing DatePicker that should not show
+			// // Remove when InputTransparency works
+			// if (!hiddenButtonClicked && PlatformViewType == PlatformViews.DatePicker)
+			// 	remote.DismissPopOver ();
+
+			Assert.True (hiddenButtonClicked);
+		}
+
+		[Test]
+		public virtual void _NotInputTransparent()
+		{
+			var remote = new LayeredViewContainerRemote (UITestContext, Test.VisualElement.NotInputTransparent);
+			remote.GoTo ();
+
+			var hiddenButtonClickedLabelTextPre = remote.GetLayeredLabel ().Text;
+			Assert.AreEqual ("Hidden Button (Not Clicked)", hiddenButtonClickedLabelTextPre);
+
+			remote.TapHiddenButton ();
+
+			var hiddenButtonClickedLabelTextPost = remote.GetLayeredLabel ().Text;
+			var hiddenButtonClicked = hiddenButtonClickedLabelTextPost == "Hidden Button (Not Clicked)";
+
+			// // Allow tests to continue by dismissing DatePicker that should not show
+			// // Remove when InputTransparency works
+			// if (!hiddenButtonClicked && PlatformViewType == PlatformViews.DatePicker)
+			// 	remote.DismissPopOver ();
+
+			Assert.True (hiddenButtonClicked);
+		}
+	}
 }