- fix getchildat on iOS

Author: PureWeen

src/Core/src/Platform/ViewExtensions.cs

@@ -209,6 +209,7 @@ internal static bool IsLoadedOnPlatform(this IElement element)
 						break;
 #endif
 					queue.Enqueue(child);
+					i++;
 				}
 			}
 

src/Core/src/Platform/iOS/ViewExtensions.cs

@@ -242,7 +242,7 @@ public static void UpdateBorder(this UIView platformView, IView view)
 
 		internal static T? GetChildAt<T>(this UIView view, int index) where T : UIView
 		{
-			if (view.Subviews.Length < index)
+			if (index < view.Subviews.Length)
 				return (T?)view.Subviews[index];
 
 			return null;