无法关闭游戏中心排行榜页

Question

我可以加载排行榜没有问题。但是当点击“完成”按钮时，我无法关闭它。

如何我打开它：

- (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]; 
    } 
} 

如何我关闭它：

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

编辑：

的方法根本没有运行;所以“测试”甚至没有打印。

我加入<GKGameCenterControllerDelegate>我的ViewController的协议。

Answer 1

试试这个：

- (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]; 
}