[Android] Fixed RefreshView in a grid

src/Controls/tests/TestCases.HostApp/Issues/Issue25368.xaml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             x:Class="Maui.Controls.Sample.Issues.Issue25368">
+    <Grid RowDefinitions="*,Auto"
+          ColumnDefinitions="Auto,*">
+        <RefreshView Grid.Row="0"
+                     Grid.ColumnSpan="2">
+            <CollectionView AutomationId="CollectionView"
+                            x:Name="cv">
+                <CollectionView.ItemTemplate>
+                    <DataTemplate>
+                        <Label Text="{Binding .}"
+                                AutomationId="{Binding .}"
+                                TextColor="Black"/>
+                    </DataTemplate>
+                </CollectionView.ItemTemplate>
+            </CollectionView>
+        </RefreshView>
+        <ContentView
+            Grid.Row="1"
+            Grid.ColumnSpan="2"
+            BackgroundColor="Black"
+            HeightRequest="200">
+        </ContentView>
+    </Grid>
+</ContentPage>

src/Controls/tests/TestCases.HostApp/Issues/Issue25368.xaml.cs

@@ -0,0 +1,12 @@
+namespace Maui.Controls.Sample.Issues
+{
+	[Issue(IssueTracker.Github, 25368, "Android RefreshView in a grid can break the grid layout", PlatformAffected.Android)]
+	public partial class Issue25368 : ContentPage
+	{
+		public Issue25368()
+		{
+			InitializeComponent();
+			cv.ItemsSource = Enumerable.Range(1, 100);
+		}
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue25368.cs

@@ -0,0 +1,26 @@
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues
+{
+	public class Issue25368 : _IssuesUITest
+	{
+		public Issue25368(TestDevice testDevice) : base(testDevice)
+		{
+		}
+
+		public override string Issue => "Android RefreshView in a grid can break the grid layout";
+
+		[Test]
+		[Category(UITestCategories.RefreshView)]
+		public void Issue2775Test()
+		{
+			App.WaitForElement("1");
+			App.ScrollDown("CollectionView", ScrollStrategy.Gesture, swipePercentage: 0.9);
+			App.ScrollDown("CollectionView", ScrollStrategy.Gesture, swipePercentage: 0.9);
+			App.ScrollDown("CollectionView", ScrollStrategy.Gesture, swipePercentage: 0.9);
+			App.WaitForElement("100");
+		}
+	}
+}

src/Core/src/Handlers/RefreshView/RefreshViewHandler.Android.cs

@@ -28,6 +28,30 @@ protected override void DisconnectHandler(MauiSwipeRefreshLayout platformView)
 			base.DisconnectHandler(platformView);
 		}
 
+		public override Size GetDesiredSize(double widthConstraint, double heightConstraint)
+		{
+			var Context = MauiContext?.Context;
+			var platformView = PlatformView;
+			var virtualView = VirtualView;
+
+			if (double.IsInfinity(virtualView.MaximumWidth) || double.IsInfinity(virtualView.MaximumHeight))
+			{
+				if (platformView == null || virtualView == null || Context == null)
+					return Size.Zero;
+
+				// Create a spec to handle the native measure
+				var widthSpec = Context.CreateMeasureSpec(widthConstraint, virtualView.Width, virtualView.Frame.Width);
+				var heightSpec = Context.CreateMeasureSpec(heightConstraint, virtualView.Height, virtualView.Frame.Height);
+
+				platformView.Measure(widthSpec, heightSpec);
+
+				// Convert back to xplat sizes for the return value
+				return Context.FromPixels(platformView.MeasuredWidth, platformView.MeasuredHeight);
+			}
+
+			return base.GetDesiredSize(widthConstraint, heightConstraint);
+		}
+
 		static void UpdateContent(IRefreshViewHandler handler) =>
 			handler.PlatformView.UpdateContent(handler.VirtualView.Content, handler.MauiContext);
 

src/Core/src/PublicAPI/net-android/PublicAPI.Unshipped.txt

@@ -52,6 +52,7 @@ Microsoft.Maui.WebProcessTerminatedEventArgs.Sender.get -> Android.Views.View?
 override Microsoft.Maui.Handlers.HybridWebViewHandler.ConnectHandler(Android.Webkit.WebView! platformView) -> void
 override Microsoft.Maui.Handlers.HybridWebViewHandler.CreatePlatformView() -> Android.Webkit.WebView!
 override Microsoft.Maui.Handlers.HybridWebViewHandler.DisconnectHandler(Android.Webkit.WebView! platformView) -> void
+override Microsoft.Maui.Handlers.RefreshViewHandler.GetDesiredSize(double widthConstraint, double heightConstraint) -> Microsoft.Maui.Graphics.Size
 override Microsoft.Maui.Platform.MauiHybridWebViewClient.Dispose(bool disposing) -> void
 override Microsoft.Maui.Platform.MauiHybridWebViewClient.ShouldInterceptRequest(Android.Webkit.WebView? view, Android.Webkit.IWebResourceRequest? request) -> Android.Webkit.WebResourceResponse?
 override Microsoft.Maui.Platform.MauiWebViewClient.OnRenderProcessGone(Android.Webkit.WebView? view, Android.Webkit.RenderProcessGoneDetail? detail) -> bool