Is it possible to swap 2 cells in a UICollectionView that is using UICollectionViewFlowLayout?

Question

Say I have a UICollectionView using a UICollectionViewFlowLayout and the following format:

1 2 3
4 5 6
7 8 9

I touch cell 9 and drag it over ce

Answer 1

Swift code:

        self.collectionView.performBatchUpdates({
            self.collectionView.moveItem(at: selectedIndexPath, to: targetIndexPath)
            self.collectionView.moveItem(at: targetIndexPath, to: selectedIndexPath)
        }, completion: nil)