完成按鈕在遊戲中心排行榜不起作用

Question

當我按排行榜視圖中的完成按鈕，它不會做任何事情，排行榜仍然可見。

這裏是代碼：

GKGameCenterViewController *gcViewController = [[GKGameCenterViewController alloc] init]; 

gcViewController.gameCenterDelegate = self; 
[gcViewController setDelegate:self ]; 
if (shouldShowLeaderboard) { 
    gcViewController.viewState = GKGameCenterViewControllerStateLeaderboards; 
    gcViewController.leaderboardIdentifier = currentLeaderBoard; 
} 
else{ 
    gcViewController.viewState = GKGameCenterViewControllerStateAchievements; 
} 

[self presentViewController:gcViewController animated:YES completion:nil];** 

Answer 1

必須添加功能駁回視圖控制器（委託）

-(void)gameCenterViewControllerDidFinish:(GKGameCenterViewController *)gameCenterViewController{ 
[gameCenterViewController dismissViewControllerAnimated:YES completion:nil]; 

}