UICollectionView autosize height

Question

How do I properly resize a UICollectionView so that it fully displays its contents? I have tried many things, including setting its frame, calling reloadData an

Answer 1

Here's my implementation in Swift 3:

override func sizeThatFits(_ size: CGSize) -> CGSize {
    if (self.superview != nil) {
        self.superview?.layoutIfNeeded()
    }

    return collectionView.contentSize
}