Reload only Footer of Section of CollectionView in Swift

Question

Created Feb ’21

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I am trying to reload only footer of collectionView of specific section for chat Application to show updated time. But unfortunately I ended up reloading whole Section using below code:

Code Block Swiftlet sections = self.collectionView.numberOfSections
let indexSet = IndexSet(integer: sections-1)
self.collectionView.reloadSections(indexSet)

But above code can take long time to load particular section if we have long chat. Please help me out.

Answered by Claude31 in 663876022

You could probably use:

Code Block func invalidateSupplementaryElements(ofKind elementKind: String, at indexPaths: [IndexPath])

kind being

Code Block kind = UICollectionElementKindSectionFooter

See other options here:
https://stackoverflow.com/questions/26998761/uicollectionview-is-there-a-way-to-reload-only-the-supplementary-views

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Answer 1

Claude31 OP

Feb ’21

Accepted Answer

You could probably use:

Code Block func invalidateSupplementaryElements(ofKind elementKind: String, at indexPaths: [IndexPath])

kind being

Code Block kind = UICollectionElementKindSectionFooter

See other options here:
https://stackoverflow.com/questions/26998761/uicollectionview-is-there-a-way-to-reload-only-the-supplementary-views

3

Answer 2

yudi2626 OP

Apr ’21

Thanks a lot. It worked.

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