setupdatasource

setupdatasource

dataSource = UICollectionViewDiffableDataSource<Section, String>(collectionView: collectionView) {
    (collectionView: UICollectionView, indexPath: IndexPath, identifier: String) -> UICollectionViewCell? in

    if indexPath.row % 2 == 0 {
        return collectionView.dequeueConfiguredReusableCell(using: registrationUICollectionViewListCell, for: indexPath, item: identifier)

    } else {
        return collectionView.dequeueConfiguredReusableCell(using: registrationCustomListCell, for: indexPath, item: identifier)
    }
}