Issues a score challenge to a set of players.
- iOS 6.0–7.0Deprecated
- macOS 10.8–10.10Deprecated
An array of
NSStringobjects that contains the player identifiers for the players to challenge.
A text message to display to the players.
Your game should only issue a challenge request in direct response to a player action. That is, your game should provide a user interface that allows the player to choose to issue a challenge and choose which friends will receive the challenge, and only issue a challenge when the player wishes to do so.