Adds recipients based on their Game Center player identifiers.
- iOS 8.0+
- macOS 10.10+
An array with one or more
GKPlayerobjects, each containing an player identifier.
If you do not add at least once recipient, the recipients field is selected when the view controller is presented so that the player can type a list of recipients. Adding more players than defined by the
max property causes an exception to be thrown.