Inserting item via CollectionView.insertItems gives Jerk effect

[SureshSc]

[dejanskledar]

Yes I noticed this. I presume implementing the missing required methods would fix the issue, but I didn't have the time to test this. By the docs:

Every layout object should implement the following methods:

• collectionViewContentSize
• layoutAttributesForElements(in:)
• layoutAttributesForItem(at:)
• layoutAttributesForSupplementaryView(ofKind:at:) (if your layout supports supplementary views)
• layoutAttributesForDecorationView(ofKind:at:) (if your layout supports decoration views)
• shouldInvalidateLayout(forBoundsChange:)