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iosgame-centergamekitachievements

GameKit best score and last achievement

I'm wondering if there is a simple a way to retrieve the best score and the last achievement that has been unlocked for the local user in an iOS app.

Thanks for your advices !

Solution

  • Yes there is:

    1) Best score: Create a GKLeaderBoard instance called myLeaderBoard and set the category you want (as in leader board ID) and set the timeScope property to GKLeaderboardTimeScopeAllTime

    Then, GKLeaderBoard has the following: 

    - (void)loadScoresWithCompletionHandler:(void (^)(NSArray *scores, NSError *error))completionHandler

    When the request is done, the completion handler is called and from that moment on, myLeaderBoard instance will have the following property: localPlayerScore which is the best score up to now, store it and use it as you wish :)

    2) Most recent Achievement: This works in the same spirit, do the following:

    [GKAchievement loadAchievementsWithCompletionHandler:^(NSArray *achievements, NSError *error) {
for(GKAchievement *ach in achievements) {

//sort using the lastReportedDate property of GKAchievement (which is an NSDate).

}
   }];