Fixed - On iOS GestureRecognizers don't work on Span in a Label, which doesn't get IsVisible (=true) update from its parent

src/Controls/src/Core/Label/Label.iOS.cs

@@ -12,7 +12,7 @@ protected override Size ArrangeOverride(Rect bounds)
 		{
 			var size = base.ArrangeOverride(bounds);
 
-			RecalculateSpanPositions();
+			RecalculateSpanPositions(size);
 
 			return size;
 		}
@@ -51,14 +51,14 @@ static void MapFormatting(ILabelHandler handler, Label label)
 			LabelHandler.MapFormatting(handler, label);
 		}
 
-		void RecalculateSpanPositions()
+		void RecalculateSpanPositions(Size size)
 		{
 			if (Handler is LabelHandler labelHandler)
 			{
 				if (labelHandler.PlatformView is not UILabel platformView || labelHandler.VirtualView is not Label virtualView)
 					return;
 
-				platformView.RecalculateSpanPositions(virtualView);
+				platformView.RecalculateSpanPositions(virtualView, size);
 			}
 		}
 	}

src/Controls/src/Core/Platform/iOS/Extensions/FormattedStringExtensions.cs

@@ -131,7 +131,7 @@ public static NSAttributedString ToNSAttributedString(
 			return attrString;
 		}
 
-		internal static void RecalculateSpanPositions(this UILabel control, Label element)
+		internal static void RecalculateSpanPositions(this UILabel control, Label element, Size size)
 		{
 			if (element is null)
 			{
@@ -149,7 +149,7 @@ internal static void RecalculateSpanPositions(this UILabel control, Label elemen
 				return;
 			}
 
-			var finalSize = control.Bounds;
+			var finalSize = size;
 
 			if (finalSize.Width <= 0 || finalSize.Height <= 0)
 			{

src/Controls/tests/TestCases.HostApp/Issues/Issue28949.cs

@@ -0,0 +1,56 @@
+namespace Maui.Controls.Sample.Issues;
+
+[Issue(IssueTracker.Github, 28949, "On iOS GestureRecognizers don't work on Span in a Label, which doesn't get IsVisible (=true) update from its parent", PlatformAffected.iOS)]
+public class Issue28949 : ContentPage
+{
+    public Issue28949()
+    {
+        var toggleButton = new Button
+        {
+            Text = "Toggle Visibility",
+            AutomationId = "ToggleButton"
+        };
+        var formattedString = new FormattedString();
+        var label = new Label
+        {
+            FormattedText = formattedString,
+            BackgroundColor = Colors.Transparent,
+            AutomationId = "Label"
+        };
+        var grid = new Grid
+        {
+            BackgroundColor = Colors.Yellow
+        };
+
+        var span = new Span
+        {
+            Text = "Click me",
+            TextColor = Colors.Pink
+        };
+        var tapGesture = new TapGestureRecognizer();
+        tapGesture.Tapped += (s, e) =>
+        {
+            span.Text = "Success";
+            span.TextColor = Colors.Green;
+        };
+        span.GestureRecognizers.Add(tapGesture);
+        formattedString.Spans.Add(span);
+
+        toggleButton.Clicked += (s, e) =>
+        {
+            grid.IsVisible = !grid.IsVisible;
+        };
+        grid.IsVisible = false;
+        grid.Children.Add(label);
+        var stackLayout = new StackLayout
+        {
+            Children =
+            {
+                toggleButton,
+                grid
+            }
+        };
+        Content = stackLayout;
+    }
+
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue28949.cs

@@ -0,0 +1,25 @@
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues;
+
+public class Issue28949 : _IssuesUITest
+{
+    public Issue28949(TestDevice device) : base(device)
+    {
+    }
+
+    public override string Issue => "On iOS GestureRecognizers don't work on Span in a Label, which doesn't get IsVisible (=true) update from its parent";
+
+    [Test]
+    [Category(UITestCategories.Label)]
+    public void GestureRecognizersOnLabelSpanShouldWork()
+    {
+        App.WaitForElement("ToggleButton");
+        App.Tap("ToggleButton");
+        var spanRect = App.WaitForElement("Label").GetRect();
+        App.TapCoordinates(spanRect.X + 5, spanRect.Y + 5);
+        App.WaitForElement("Success");
+    }
+}