Only change ViewHandlerDelegator for iOS/Catalyst

src/Controls/src/Core/Compatibility/Handlers/ViewHandlerDelegator.cs

@@ -20,9 +20,14 @@ class ViewHandlerDelegator<TElement>
  internal IPropertyMapper _mapper;
  internal readonly CommandMapper _commandMapper;
  IPlatformViewHandler _viewHandler;
+#if IOS || MACCATALYST
  TElement? _tempElement;
  WeakReference<TElement>? _element;
  public TElement? Element => _tempElement ?? _element?.GetTargetOrDefault();
+#else
+ TElement? _element;
+ public TElement? Element => _element;
+#endif
  bool _disposed;
 
  public ViewHandlerDelegator(
@@ -81,10 +86,14 @@ public void SetVirtualView(
  {
 #if WINDOWS
  VisualElementRenderer<TElement, TNativeElement>.SetVirtualView(view, _viewHandler, onElementChanged, ref _element, ref _mapper, _defaultMapper, autoPackage);
-#else
+#elif IOS || MACCATALYST
+ // _tempElement is used here, because the Element property is accessed before SetVirtualView() returns
  VisualElementRenderer<TElement>.SetVirtualView(view, _viewHandler, onElementChanged, ref _tempElement, ref _mapper, _defaultMapper, autoPackage);
+ // We use _element as a WeakReference, and clear _tempElement
  _element = _tempElement is null ? null : new(_tempElement);
  _tempElement = null;
+#else
+ VisualElementRenderer<TElement>.SetVirtualView(view, _viewHandler, onElementChanged, ref _element, ref _mapper, _defaultMapper, autoPackage);
 #endif
  }