UICollectionview not scroll to item by selectItem function IOS

Question

I can't scroll to the Item with this function of collectionView

collectionView.selectItem(at: IndexPath(row: 10 , section: 0), animated: true, scrollPosition: UICollectionViewScrollPosition.centeredHorizontally) 

This CollectionView is Horizontal

Answer 1

You are currently just selecting collection view item at indexPath, this will not scroll to item. You need to scroll at position of selected item . Add following method to scroll:

collectionView.selectItem(at: IndexPath(row: 10 , section: 0), animated: true, scrollPosition: UICollectionViewScrollPosition.centeredHorizontally)
collectionView.scrollToItem(at: IndexPath(row: 10 , section: 0), at: .centeredHorizontally, animated: true)

Answer 2

Thank you, everyone. I solved with this code. my mistake code is self.categoryItemsCollection.selectItem(at: IndexPath(row: indexPath.section, section: 0), animated: true, scrollPosition: UICollectionViewScrollPosition.centeredHorizontally) just change the scrollPosition parametr to .centeredHorizontally self.categoryItemsCollection.selectItem(at: IndexPath(row: indexPath.section, section: 0), animated: true, scrollPosition: .centeredHorizontally)