UICollectionView contentOffset after device rotation

Question

What I am trying to do:

On Apple\'s Photo\'s App, if you rotate device while scroll to an arbitrary offset, same cell that was in the center beforehand would end u

Answer 1

Accepted answer did not work for me. In my case neither method of UICollectionViewDelegate

collectionView(_:targetContentOffsetForProposedContentOffset:)

nor the method of UICollectionViewLayout was called

targetContentOffset(forProposedContentOffset:)

Instead, I inherited from UICollectionView and overrode layoutSubviews method:

class CollectionView: UICollectionView {
    override func layoutSubviews() {
        let old = contentOffset
        super.layoutSubviews()
        contentOffset = old
    }
}

This may cause some side effects, so check it carefully before use in production