How can I resize the cell size of UICollectionView
without reload
methods?
Just want to call following method on some event. I do not want to reload UICollectionView
or any of its section or row.
func collectionView(collectionView: UICollectionView,
layout collectionViewLayout: UICollectionViewLayout,
sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize
I got the solution to my question with following line of code.
collectionView?.collectionViewLayout.invalidateLayout()
N.B. To animate this resizing, use UIView.animate
:
let duration: TimeInterval = 0.3
UIView.animate(withDuration: duration, animations: {
collectionView.collectionViewLayout.invalidateLayout()
})