Created
February 19, 2018 20:30
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Why the hell this crashes in UICollectionView?
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| let expandedSections = [0, 3, 8] | |
| let indexSet = IndexSet(expandedSections) | |
| collectionView?.performBatchUpdates( | |
| { | |
| [unowned self] in | |
| if isInserted { | |
| self.collectionView?.insertItems(at: indexPaths) | |
| } else { | |
| self.collectionView?.deleteItems(at: indexPaths) | |
| } | |
| if !indexSet.isEmpty { | |
| self.collectionView?.reloadSections(indexSet) | |
| } | |
| }, completion: { | |
| _ in | |
| } |
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Hi I'm facing the same issue using framework for CollectionView well that is weird.
Thanks for posting the reason why it happens.
Although i did not understand fully why this is happening.
My only hint is that somehow indexSet is over-floating.