iOS - Change UICollectionView layout to fill rows instead of columns

Question

Is it possible to change the UICollectionView so that it fills the rows instead of the columns ? Here's an image explaining it :

EDIT : It's an horizontal scroll

EDIT 2 : I already fits 3 cells in a row, my problem is that with 4 cells it doesn't fill the first row.

Answer 1

I had the exact same issue as you. Collectin view is horizontal & none-scrollable, but it was filling columns first. Weirdly though, changing the direction to "Vertical" fixed the issue though!