UICollectionView and Supplementary View (header)

Question

Trying to add a a Supplementary view into my UICollectionView as a header. I\'m having issues getting it to work.

I use a custom UICollectionViewFlowL

Answer 1

If you look at the error message, it says that the data source is not set. This should fix it:

self.collectionView.dataSource = self;

Make sure your view controller implements the data source protocol:

YourViewController : UIViewController