Initializes an achievement for a specific player.
- iOS 7.0–8.0Deprecated
- watchOS 2.0–2.0Deprecated
A string that matches the identifier string for an achievement you created for your game in App Store Connect.
The identifier for the player associated with the specified achievement.
Your game initializes a new achievement object for a specific player only when it has not previously reported progress for that achievement. Use this method to submit a participant’s achievement when ending a turn-based match.