无法关闭来自SKScene的GKGameCenterViewController [英] Cannot dismiss GKGameCenterViewController presented from SKScene

问题描述

我要展示一个来自SKScene的GKGameCenterViewController.这是我的代码:

I'm presenting a GKGameCenterViewController from an SKScene. This is my code:

-(void)showLeaderboardAndAchievements:(BOOL)shouldShowLeaderboard{
    GKGameCenterViewController *gcViewController = [[GKGameCenterViewController alloc] init];
    gcViewController.viewState = GKGameCenterViewControllerStateLeaderboards;
    gcViewController.leaderboardIdentifier = _leaderboardIdentifier;

    // _spriteViewController references an UIViewController
    [_spriteViewController presentViewController:gcViewController animated:YES completion:nil];
}

显示窗口没有问题，但是我无法让用户关闭它.我实现了方法gameCenterViewControllerDidFinish，但是根本没有调用该函数.我该怎么做才能使用户关闭排行榜?

I don't have problems presenting the window, however I cannot manage to let users close it. I implemented the method gameCenterViewControllerDidFinish however the function is not called at all. What do I have to do so users can close the leaderboard?

推荐答案

我通过添加行gcViewController.gameCenterDelegate = _spriteViewController;

-(void)showLeaderboardAndAchievements:(BOOL)shouldShowLeaderboard{
    GKGameCenterViewController *gcViewController = [[GKGameCenterViewController alloc] init];
    gcViewController.viewState = GKGameCenterViewControllerStateLeaderboards;
    gcViewController.leaderboardIdentifier = _leaderboardIdentifier;
    gcViewController.gameCenterDelegate = _spriteViewController; // er

    // _spriteViewController references an UIViewController
    [_spriteViewController presentViewController:gcViewController animated:YES completion:nil];
}

虽然有效，但我得到了警告: Assigning to 'id<GKGameCenterControllerDelegate>' from incompatible type 'UIViewController *__weak'

While it worked I got the warning: Assigning to 'id<GKGameCenterControllerDelegate>' from incompatible type 'UIViewController *__weak'

对于在这种情况下的任何人，问题都只是_spriteViewController类型为UIViewController，将其更改为我的自定义类可解决此问题.您也可以像这样声明引用ViewController的属性:

For anyone in this situation the problem was simply that _spriteViewController was of typeUIViewController, changing that to my custom class fixed the issue. You can also declare the property referencing the ViewController like this:

UIViewController <GKGameCenterControllerDelegate> *_spriteViewController;

这篇关于无法关闭来自SKScene的GKGameCenterViewController的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！