UICollectionView with ContentInset is not Scrolling all the Way Down

Question

I am setting the content inset of a UICollectionView:

[_collectionView setContentInset:UIEdgeInsetsMake(0.f, 0.f, 100.f, 0.f)];

Then I am s

Answer 1

Programmatically, I solved this by using (Swift 5) :

collectionView.contentInsetAdjustmentBehavior = .never