What is the correct of of disabling the supplementary views (e.g. header)? One time I want to show them (iPhone) and one time I don't want to show them (iPad).
The only idea I currently have is to return a size of zero in
If you return
collectionView:layout:referenceSizeForHeaderInSection: delegate method
collectionView:viewForSupplementaryElementOfKind:atIndexPath: won't be called.