Swift, Change width of UICollectionViewCell and UILabel(inside the cell) programmatically

Question

I\'ve set the width of a cell(UICollectionViewCell) to be equal to the width of the UICollectionView and I\'m trying to do exactly the same thing with the UILabel that is includ

Answer 1

It doesn't work because by the time this method is called, the collection view already knows how big the cell should be because it has got it from the flow delegate method:

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

This is where you should be setting the size of your cells.