The “Discoverable Design“ session showcases the app Toasty, and it's “Recipes“ has a grid of items where the first one is an invitation to add a new photo (i.e. a static cell).
To replicate that concept in my collectionView, I need advice how best to approach it.
My collectionView has a single section and is powered by a UICollectionViewDiffableDataSource, which is populated from a NSFetchedResultsController and relies on CellRegistration. In addition, the user can change the sort order, which updates fetchedResultsController's sortDescriptors and performs a fetch.
My failed approach was focused on the dataSource snapshot built in fetchedResultsController's didChangeContentWith. First I appended the snapshot with a dummy entry, and then appended all fetchedObjects. I made sure that the dataSource constructor used a different cell registration for the (0,0) IndexPath. This however resulted in indexPath mismatches between the collectionView and FRC, and I don't think remapping indexPaths is the way to go.
Point me in the right direction? Is there a way to configure the collectionView layout for this?
