Resize internal content container when ScrollView content is resized (#…

…16651)

src/Core/src/Handlers/ScrollView/ScrollViewHandler.iOS.cs

@@ -167,25 +167,25 @@ static Func<Rect, Size> ArrangeScrollViewContent(Func<Rect, Size> internalArrang
 		{
 			return (rect) =>
 			{
+				var contentSize = internalArrange(rect);
+
+				SetContentSizeForOrientation(platformScrollView, platformScrollView.Bounds.Width, platformScrollView.Bounds.Height, scrollOrientation, contentSize);
+
 				if (container.Superview is UIScrollView scrollView)
 				{
 					// Ensure the container is at least the size of the UIScrollView itself, so that the 
 					// cross-platform layout logic makes sense and the contents don't arrange outside the 
 					// container. (Everything will look correct if they do, but hit testing won't work properly.)
 
 					var scrollViewBounds = scrollView.Bounds;
-					var containerBounds = container.Bounds;
+					var containerBounds = contentSize;
 
 					container.Bounds = new CGRect(0, 0,
 						Math.Max(containerBounds.Width, scrollViewBounds.Width),
 						Math.Max(containerBounds.Height, scrollViewBounds.Height));
 					container.Center = new CGPoint(container.Bounds.GetMidX(), container.Bounds.GetMidY());
 				}
 
-				var contentSize = internalArrange(rect);
-
-				SetContentSizeForOrientation(platformScrollView, platformScrollView.Bounds.Width, platformScrollView.Bounds.Height, scrollOrientation, contentSize);
-
 				return contentSize;
 			};
 		}