無法關閉遊戲中心排行榜頁

Question

我可以加載排行榜沒有問題。但是當點擊「完成」按鈕時，我無法關閉它。

如何我打開它：

- (IBAction)leaderboardsClicked:(id)sender{ 
    if ([GKLocalPlayer localPlayer].isAuthenticated) { 
     GKGameCenterViewController *leaderboardController = [[GKGameCenterViewController alloc] init]; 
     [self presentViewController:leaderboardController animated:YES completion:NULL]; 
    }else{ 
     UIAlertView *alert = [[UIAlertView alloc]initWithTitle: @"Error" 
      message: @"You must be logged into Game Center to view the leaderboards. Open Game Center?" 
      delegate: self 
      cancelButtonTitle:@"No" 
      otherButtonTitles:@"Yes",nil]; 
     [alert show]; 
    } 
} 

如何我關閉它：

- (void)gameCenterViewControllerDidFinish:(GKGameCenterViewController *)gameCenterViewController{ 
    NSLog(@"test"); 
    [self dismissViewControllerAnimated:YES completion:nil]; 
} 

編輯：

的方法根本沒有運行;所以「測試」甚至沒有打印。

我加入<GKGameCenterControllerDelegate>我的ViewController的協議。

Answer 1

試試這個：

- (IBAction)leaderboardsClicked:(id)sender{ 
    if ([GKLocalPlayer localPlayer].isAuthenticated) { 
     GKGameCenterViewController *leaderboardController = [[GKGameCenterViewController alloc] init]; 
     leaderboardController.gameCenterDelegate = self; 
     gameCenterController.viewState = GKGameCenterViewControllerStateLeaderboards; 

     [self presentViewController:leaderboardController animated:YES completion:NULL]; 
    }else{ 
     UIAlertView *alert = [[UIAlertView alloc]initWithTitle: @"Error" 
      message: @"You must be logged into Game Center to view the leaderboards. Open Game Center?" 
      delegate: self 
      cancelButtonTitle:@"No" 
      otherButtonTitles:@"Yes",nil]; 
     [alert show]; 
    } 
} 

和：

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