UICollectionView + SDWebImage + Cell reuse

Question

I have a UICollectionView with a custom UICollectionViewCell class which adds another UIView (thumbnailView) to its contentView. This other view has a UIImageView property (

Answer 1

I tried both didEndDisplayCell() and prepareForReuse(), neither of them work. A work round way is to set imageView.image as nil then assign to the specific image, then it will not blink the old image as background. (but it will be slower since it has to do the "clean" job first).