Cancels a previously triggered data prefetch request.
- iOS 10.0+
- tvOS 10.0+
The collection view issuing the cancellation of the prefetch request.
The index paths that specify the locations of the items for which data is no longer required.
The collection view calls this method to cancel prefetch requests as cells scroll out of view. Your implementation of this method is responsible for canceling the operations initiated by a previous call to
collection.For further information about canceling an asynchronous data loading task, see Concurrency Programming Guide.