iOS: reload single cell of UICollectionView

Question

I am trying to follow the following post on reload a cell in a UICollectionView:

UICollectionView update a single cell

I know that I ultimately want somethin

Answer 1

Obj-C

NSMutableArray *indexPaths = [[NSMutableArray alloc] init]    
[indexPaths addObject:indexPath];
[self.collectionView reloadItemsAtIndexPaths: indexPaths];

Swift 4.0

var indexPaths = [IndexPath]()
indexPaths.append(indexPath) 

if let collectionView = collectionView {
    collectionView.reloadItemsAtIndexPaths(indexPaths)
}