The interface for initiating drags from a collection view.
Mac Catalyst 13.0+Beta
Implement this protocol in the object that you use to initiate drags from your collection view. The only required method of this protocol is the collectionView:itemsForBeginningDragSession:atIndexPath: method, but you can implement other methods as needed to customize the drag behavior of your collection view.
Assign your custom delegate object to the dragDelegate property of your collection view.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.