Page cannot scroll to the bottom while using RoundRectangle

src/Controls/src/Core/Shapes/Shape.cs

@@ -404,14 +404,14 @@ protected override Size MeasureOverride(double widthConstraint, double heightCon
 					break;
 
 				case Stretch.Fill:
-					if (!double.IsInfinity(heightConstraint))
+					if (!double.IsInfinity(heightConstraint) || HeightRequest > 0)
 					{
-						result.Height = heightConstraint;
+						result.Height = HeightRequest < 0 ? heightConstraint : HeightRequest;
 					}
 
-					if (!double.IsInfinity(widthConstraint))
+					if (!double.IsInfinity(widthConstraint) || WidthRequest > 0)
 					{
-						result.Width = widthConstraint;
+						result.Width = WidthRequest < 0 ? widthConstraint : WidthRequest;
 					}
 					break;
 

src/Controls/tests/TestCases.HostApp/Issues/Issue26877.cs

@@ -0,0 +1,104 @@
+using Microsoft.Maui.Controls.Shapes;
+
+namespace Controls.TestCases.HostApp.Issues;
+[Issue(IssueTracker.Github, 26877, "The iOS platform page cannot scroll to the bottom", PlatformAffected.iOS)]
+public class Issue26877 : ContentPage
+{
+    public Issue26877()
+    {
+        var scrollView = new ScrollView
+        {
+            BackgroundColor = Colors.AliceBlue
+        };
+
+        var stackLayout = new StackLayout();
+        stackLayout.Children.Add(new Label
+        {
+            Text = "ScrollToBottomPage",
+            TextColor = Colors.Black,
+            AutomationId = "ScrollToBottomPage"
+        });
+
+        stackLayout.Children.Add(new RoundRectangle
+        {
+            BackgroundColor = Colors.Red,
+            HeightRequest = 100,
+        });
+
+        stackLayout.Children.Add(new Rectangle
+        {
+            BackgroundColor = Colors.Azure,
+            HeightRequest = 100
+        });
+
+        stackLayout.Children.Add(new Ellipse
+        {
+            BackgroundColor = Colors.BlanchedAlmond,
+            HeightRequest = 100
+        });
+
+        stackLayout.Children.Add(new RoundRectangle
+        {
+            BackgroundColor = Colors.Red,
+            HeightRequest = 100,
+        });
+
+        stackLayout.Children.Add(new Rectangle
+        {
+            BackgroundColor = Colors.Azure,
+            HeightRequest = 100
+        });
+
+        stackLayout.Children.Add(new Ellipse
+        {
+            BackgroundColor = Colors.BlanchedAlmond,
+            HeightRequest = 100
+        });
+
+        stackLayout.Children.Add(new RoundRectangle
+        {
+            BackgroundColor = Colors.Red,
+            HeightRequest = 100,
+        });
+
+        stackLayout.Children.Add(new Rectangle
+        {
+            BackgroundColor = Colors.Azure,
+            HeightRequest = 100
+        });
+
+        stackLayout.Children.Add(new Ellipse
+        {
+            BackgroundColor = Colors.BlanchedAlmond,
+            HeightRequest = 100
+        });
+
+        stackLayout.Children.Add(new RoundRectangle
+        {
+            BackgroundColor = Colors.Red,
+            HeightRequest = 100,
+        });
+
+        stackLayout.Children.Add(new Rectangle
+        {
+            BackgroundColor = Colors.Azure,
+            HeightRequest = 100
+        });
+
+        stackLayout.Children.Add(new Ellipse
+        {
+            BackgroundColor = Colors.BlanchedAlmond,
+            HeightRequest = 100
+        });
+
+        stackLayout.Children.Add(new Label
+        {
+            Text = "2. The test passes if you were able to scroll down to this message.",
+            TextColor = Colors.Black,
+            AutomationId = "Label"
+        });
+
+        scrollView.Content = stackLayout;
+        Content = scrollView;
+    }
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue26877.cs

@@ -0,0 +1,25 @@
+using System;
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Tests.Issues;
+
+public class Issue26877 : _IssuesUITest
+{
+        public Issue26877(TestDevice testDevice) : base(testDevice)
+        {
+        }
+
+        public override string Issue => "The iOS platform page cannot scroll to the bottom";
+
+        [Test]
+        [Category(UITestCategories.Shape)]
+        [Category(UITestCategories.ScrollView)]
+        public void ScrollToBottom()
+        {
+                App.WaitForElement("ScrollToBottomPage");
+                App.ScrollTo("Label");
+                App.WaitForElement("Label");
+        }
+}