How to use UICollectionView with other elements?

Question

Objective-C

Good afternoon, I apologize in advance for the noob question, but I honestly searched for the answer myself, it does not work.
It is necessary to make an application for the site ttlip.ru
Now there is a problem with the fact that the banner inserted in front of the UICollectionView appears to be transparent.
But I need it to just show at the top, hide when scrolling.
How to do it?
There is an option - to do it using the header, but I'm not sure that this method is correct, because there may be complex elements.

Answer 1

You need to use your banner as a SupplementaryElement
The dataSource method is responsible for this
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
This will be the most correct solution
If you need some kind of complex animation - then work with uiscrollview will already be needed, but this is not even discussed