sizeForItemAtIndexPath is not found in different swift versions

Question

I am using UICollectionView but following method not found:

 func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize

please suggest me it's replacement.

score 82 · Answer 1 · answered Dec 21 '16 at 08:39

82

For me sizeForItemAt wasn't called because in Swift 3 you need to explicitly set your class to implement the UICollectionViewDelegateFlowLayout protocol

answered Dec 21 '16 at 08:39

Roland Keesom

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You saved my lot time, as I am not very familiar with CollectionView but I have to use it for one of my apps. +1 for your very important instruction – g212gs Feb 10 '17 at 12:05
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Especially useful, when you just migrated an existing project to Swift 3 and wondered why your collection views are suddenly broken. – retendo Apr 27 '17 at 10:20

score 54 · Accepted Answer · edited Oct 14 '16 at 06:18

54

This is the new syntax for that:

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {

}

edited Oct 14 '16 at 06:18

Nirav D

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answered Oct 14 '16 at 06:09

JFAP

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sizeForItemAtIndexPath is not found in different swift versions

2 Answers2