Disable horizontal scrolling in UICollectionView

Question

How do I disable horizontal scrolling in UICollectionView? I tried to add this:

self.scrollDirection = UICollectionViewScrollDirectionVertical;

to UICollectionViewFlowLayout but it didn't work. I want to have only vertical scrolling. I'm not using Interface builder.

Answer 1

If you are using Storyboard, I believe you may set it from the Attributes Inspector. See the screen shot Below:-