Tells the delegate that the highlight was removed from the item at the specified index path.
- iOS 6.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
The collection view object that is notifying you of the highlight change.
The index path of the cell that had its highlight removed.
The collection view calls this method only in response to user interactions and does not call it if you programmatically change the highlighting on a cell.