How to programmatically add header on UICollectionView with UICollectionViewLayout
You're passing in the incorrect view kind.
Your line registering the class:
[self.collectionView registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:@"HeaderView"];Should be:
[self.collectionView registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind: UICollectionElementKindSectionHeader withReuseIdentifier:@"HeaderView"];Edit: Looks like your code is all using sectionFooter. Are you trying to programmatically add a header or a footer?
Found the issue, I was not returning attributes of my header in this UICollectionLayoutView method:
- (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect; // return an array layout attributes instances for all the views in the given rect
Check that you gave reference size for header in UICollectionViewFlowLayout
[flowLayout setHeaderReferenceSize:CGSizeMake(320, 50)];and for footer
[flowLayout setFooterReferenceSize:CGSizeMake(320, 50)];