ios - 无法关闭 Game Center 排行榜页面

Question

我可以毫无问题地加载排行榜。但是当单击“完成”按钮时我无法关闭它。

我是如何打开它的:

- (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];
    }
}

我如何关闭它:

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

编辑:

该方法根本没有运行；所以“测试”甚至不会被打印出来。

然后我添加了 <GKGameCenterControllerDelegate>到我的 ViewController 的协议(protocol)。

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];
}