UICollectionView estimatedItemSize - last cell is not aligned

Question

I want to make a usual horizontalScrolling flowLayout UICollectionView with estimatedItemSize and preferredLayoutAttributesFittingAttributes in cell. But there is something

Answer 1

You call super method but you did not use super returned layoutAttributes.

    [super preferredLayoutAttributesFittingAttributes:layoutAttributes];

You can try to print out original layoutAttributes vs super's layoutAttributes. Sometimes, you don't need to call super function.

Second, You can create custom flowlayout or set inset to let your cell align top. I did this in my project.