[Android] Controls Disappear When WebView is Used with Hardware Acceleration Disabled

src/Controls/tests/TestCases.HostApp/Issues/Issue28798.cs

@@ -0,0 +1,49 @@
+namespace Maui.Controls.Sample.Issues;
+
+[XamlCompilation(XamlCompilationOptions.Compile)]
+[Issue(IssueTracker.Github, 28798, "Controls Disappear When WebView is Used with Hardware Acceleration Disabled in Android", PlatformAffected.Android)]
+public partial class Issue28798 : ContentPage
+{
+    public Issue28798()
+    {
+        var grid = new Grid
+        {
+            HeightRequest = 500,
+            Background = Colors.Green,
+            WidthRequest = 300
+        };
+
+        grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
+        grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
+        grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
+
+        var label = new Label
+        {
+            Text = "Test",
+            Background = Colors.Red,
+            AutomationId = "TestLabel"
+        };
+        Grid.SetRow(label, 0);
+        grid.Children.Add(label);
+
+        var button = new Button
+        {
+            Text = "button",
+            Background = Colors.Blue
+        };
+        Grid.SetRow(button, 1);
+        grid.Children.Add(button);
+
+        var webView = new WebView
+        {
+            Source = "https://example.com/",
+            BackgroundColor = Colors.Transparent,
+            HeightRequest = 300,
+            WidthRequest = 300
+        };
+        Grid.SetRow(webView, 2);
+        grid.Children.Add(webView);
+
+        Content = grid;
+    }
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue28798.cs

@@ -0,0 +1,22 @@
+#if ANDROID
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues;
+
+internal class Issue28798 : _IssuesUITest
+{
+	public Issue28798(TestDevice device) : base(device) { }
+
+	public override string Issue => "Controls Disappear When WebView is Used with Hardware Acceleration Disabled in Android";
+
+	[Test]
+	[Category(UITestCategories.WebView)]
+	public void ControlsShouldRemainVisibleWithWebViewWhenHardwareAccelerationIsDisabled()
+	{
+		App.WaitForElement("TestLabel");
+		VerifyScreenshot();
+	}
+}
+#endif

src/Core/src/Handlers/WebView/WebViewHandler.Android.cs

@@ -29,6 +29,11 @@ protected override AWebView CreatePlatformView()
 			platformView.Settings.DomStorageEnabled = true;
 			platformView.Settings.SetSupportMultipleWindows(true);
 
+			if (OperatingSystem.IsAndroidVersionAtLeast(23) && Context?.ApplicationInfo?.Flags.HasFlag(Android.Content.PM.ApplicationInfoFlags.HardwareAccelerated) == false)
+			{
+				platformView.SetLayerType(Android.Views.LayerType.Software, null);
+			}
+
 			return platformView;
 		}