I am working on a .net maui project involving the need to dive into native code to fix a well-known issue with the collection views not resizing when, say, expanding a section in a custom accordion on ios (surprise surprise).

I am stuck on getting each section item in a UICollectionView to reload when data has been updated so that the cell size can correctly update when data changes. Here is the code that I have so far for the OnItemSelected command when selecting an item in the ollection view MAUI control:

        public void OnSectionTapped(ItemObject section)
        {
            section.Expanded = !section.Expanded;
#if IOS
            var baseView = MainCollectionView.Handler.PlatformView;

            if(baseView != null)
            {
                var view = baseView as UIView;

                if(view != null)
                {
                    var subViewItemIsCollecitonView = view.Subviews[0] is UICollectionView;

                    if(subViewItemIsCollecitonView)
                    {
                        var iosCollectionView = (view.Subviews[0] as UICollectionView);
// This is the section where I am stuck
                        var items = iosCollectionView.GetIndexPathsForSelectedItems();

                        if(items != null)
                        {
                            var itemArr = items.ToArray();
                            var item = itemArr.FirstOrDefault();
                             
                            //iosCollectionView.ReloadItems(items.ToArray());
//This is the section where I am stuck
                        }
                    }

                }
            }
#endif
        }

I’ve looked at the iOS docs, but I guess I’m having a hard time wrapping my head around getting the section and item indexes for the IndexPath to reload each item. I do apologize for the stupid question sinc this is my first time having to do this. Thanks.