Animating UICollectionView contentOffset does not display non-visible cells

Question

I\'m working on some ticker-like functionality and am using a UICollectionView. It was originally a scrollView, but we figure a collectionView will make it easier

Answer 1

I suspect that UICollectionView is trying to improve performance by waiting until the end of the scroll before updating.

Perhaps you could divide the animation up into chucks, although I'm not sure how smooth that would be.

Or maybe calling setNeedsDisplay periodically during the scroll?

Alternatively, perhaps this replacement for UICollectionView will either do want you need or else can be modified to do so:

https://github.com/steipete/PSTCollectionView