fix: Adjust VisualParent property to return Selector for SelectorItems

src/Uno.UI/Extensions/UIViewExtensions.iOSmacOS.cs

@@ -1,35 +1,27 @@
-using Uno.Disposables;
-using Uno;
+using Uno;
 using Uno.Extensions;
 using Uno.UI;
 using System;
 using System.Collections.Generic;
-using System.Drawing;
 using System.Linq;
 using System.Text;
-using Uno.UI.DataBinding;
 using Uno.UI.Extensions;
 using Windows.UI.Xaml;
-using System.Diagnostics.CodeAnalysis;
 using Uno.Foundation.Logging;
-using Windows.UI.Core;
 using Uno.UI.Controls;
-using Windows.UI.Xaml.Controls;
-using Windows.UI.Xaml.Media;
 
 #if NET6_0_OR_GREATER
 using ObjCRuntime;
 #endif
 
 #if XAMARIN_IOS_UNIFIED
-using Foundation;
-using UIKit;
 using CoreGraphics;
 using _View = UIKit.UIView;
 using _Controller = UIKit.UIViewController;
 using _Responder = UIKit.UIResponder;
 using _Color = UIKit.UIColor;
 using _Event = UIKit.UIEvent;
+using System.Security.Principal;
 #elif __MACOS__
 using Foundation;
 using AppKit;
@@ -295,7 +287,18 @@ public static void AddChild(this _View parent, _View child)
 		/// <summary>
 		/// Get the parent view in the visual tree. This may differ from the logical <see cref="FrameworkElement.Parent"/>.
 		/// </summary>
-		public static _View GetVisualTreeParent(this _View child) => child?.Superview;
+		public static _View GetVisualTreeParent(this _View child)
+		{
+			var visualParent = child?.Superview;
+
+			if (visualParent is null &&
+				child is FrameworkElement fw)
+			{
+				visualParent = fw.VisualParent;
+			}
+
+			return visualParent;
+		}
 
 		public static IEnumerable<T> FindSubviewsOfType<T>(this _View view, int maxDepth = 20) where T : class
 		{

src/Uno.UI/Extensions/ViewExtensions.Android.cs

@@ -386,7 +386,18 @@ public static void AddChild(this ViewGroup parent, View child)
 		/// <summary>
 		/// Get the parent view in the visual tree. This may differ from the logical <see cref="FrameworkElement.Parent"/>.
 		/// </summary>
-		public static ViewGroup GetVisualTreeParent(this View child) => child?.Parent as ViewGroup;
+		public static ViewGroup GetVisualTreeParent(this View child)
+		{
+			var visualParent = child?.Parent as ViewGroup;
+
+			if (visualParent is null &&
+				child is FrameworkElement fe)
+			{
+				visualParent = fe.VisualParent;
+			}
+
+			return visualParent;
+		}
 
 		/// <summary>
 		/// Removes a child view from the specified view, and disposes it if the specified view is the owner.

src/Uno.UI/UI/Xaml/Controls/Popup/PopupPanel.cs

@@ -126,7 +126,7 @@ protected override Size ArrangeOverride(Size finalSize)
 				// for android, the above line returns the absolute coordinates of anchor on the screen
 				// because the parent view of this PopupPanel is a PopupWindow and GetLocationInWindow will be (0,0)
 				// therefore, we need to make the relative adjustment
-				if (this.VisualParent is Android.Views.View view)
+				if (this.NativeVisualParent is Android.Views.View view)
 				{
 					var windowLocation = Point.From(view.GetLocationInWindow);
 					var screenLocation = Point.From(view.GetLocationOnScreen);

src/Uno.UI/UI/Xaml/Controls/Primitives/SelectorItem.cs

@@ -76,6 +76,8 @@ public SelectorItem()
 
 		private Selector Selector => ItemsControl.ItemsControlFromItemContainer(this) as Selector;
 
+		internal override UIElement VisualParent => Selector ?? base.VisualParent;
+
 		private bool IsItemClickEnabled
 		{
 			get

src/Uno.UI/UI/Xaml/FrameworkElement.Android.cs

@@ -21,7 +21,7 @@ public partial class FrameworkElement
 		/// <summary>
 		/// The parent of the <see cref="FrameworkElement"/> in the visual tree, which may differ from its <see cref="Parent"/> (ie if it's a child of a native view).
 		/// </summary>
-		internal IViewParent VisualParent => (this as View).Parent;
+		internal IViewParent NativeVisualParent => (this as View).Parent;
 
 		public FrameworkElement()
 		{
@@ -158,7 +158,7 @@ partial void OnLoadedPartial()
 			// see StretchAffectsMeasure for details.
 			this.SetValue(
 				StretchAffectsMeasureProperty,
-				!(VisualParent is DependencyObject),
+				!(NativeVisualParent is DependencyObject),
 				DependencyPropertyValuePrecedences.DefaultValue
 			);
 		}

src/Uno.UI/UI/Xaml/FrameworkElement.cs

@@ -173,10 +173,15 @@ Windows.UI.Xaml.ResourceDictionary Resources
 		/// Allows to override the publicly-visible <see cref="Parent"/> without modifying DP propagation.
 		/// </summary>
 		internal DependencyObject LogicalParentOverride { get; set; }
-
-		internal UIElement VisualParent => ((IDependencyObjectStoreProvider)this).Store.Parent as UIElement;
 #endif
 
+		/// <summary>
+		/// Provides the managed visual parent of the element. This property can be overriden for specific
+		/// scenarios, for example in case of SelectorItem, where actual parent is null, but visual parent
+		/// is the list.
+		/// </summary>
+		internal virtual UIElement VisualParent => ((IDependencyObjectStoreProvider)this).Store.Parent as UIElement;
+
 		private bool _isParsing;
 		/// <summary>
 		/// True if the element is in the process of being parsed from Xaml.

src/Uno.UI/UI/Xaml/Media/VisualTreeHelper.cs

@@ -178,9 +178,9 @@ public static IReadOnlyList<Popup> GetOpenPopupsForXamlRoot(XamlRoot xamlRoot)
 			realParent = reference.GetParent() as DependencyObject;
 #endif
 
-			if (realParent is null && reference is SelectorItem selectorItem)
+			if (realParent is null && reference is _ViewGroup uiElement)
 			{
-				return ItemsControl.ItemsControlFromItemContainer(selectorItem);
+				return uiElement.GetVisualTreeParent() as DependencyObject;
 			}
 
 			return realParent;