Swift 3操作UICollectionViewCell的大小？

Question

I'm struggling with manipulating my UICollectionViewCell sizes, since it seem the function is deprecated, same goes for spacing. I've tried with this one:

func collectionView(collectionView: UICollectionView,
                        layout collectionViewLayout: UICollectionViewLayout,
                        sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
        return CGSize(width: 150, height: 150)
    }

Which function am I supposed to use in Swift 3?

Answer 1

you can try this code in swift3

override var collectionViewContentSize: CGSize {
    return CGSize(width: 150, height: 150)
}

Answer 2

You can use below delegate method.

 func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize { return CGSize(width: 100, height: 100) }