Question

我在Swift中使用SpriteKit制作游戏，但在显示广告时遇到了麻烦。当播放器死亡时，广告会显示，但是当我关闭它时，它不会停留在当前场景（GameScene）中，而是出于某种原因切换到MainMenu场景。实际上，如果你仔细观察，你可以看到＆＃34;游戏结束了＃34;出现文本，当广告向上滑动显示时，它会切换到MainMenu场景。我看到帖子here并尝试了答案所说的内容（将所有内容从ViewWillLayoutSubviews移动到ViewDidLoad等）并且它没有用。有任何想法吗？感谢。

以下是GameViewController中涉及广告的所有代码：

class GameViewController: UIViewController, UIAlertViewDelegate, GADInterstitialDelegate {

var musicPlayer = AVAudioPlayer()

var musicUrl = Bundle.main.url(forResource: "Loops2.mp3", withExtension: nil)

var interstitial: GADInterstitial!

override func viewDidLoad() {
    super.viewDidLoad()
    interstitial = loadAd()
    NotificationCenter.default.addObserver(self, selector: #selector(self.playerDied), name: NSNotification.Name("ShowAd"), object: nil)
    NotificationCenter.default.post(name: NSNotification.Name("ShowingAd"), object: nil)

    super.viewWillLayoutSubviews()

    let skView = self.view as! SKView
    skView.ignoresSiblingOrder = true
    skView.showsFPS = true
    skView.showsNodeCount = true

    let mainMenu = MainMenu()
    mainMenu.scaleMode = .aspectFill
    mainMenu.size = view.bounds.size
    skView.presentScene(mainMenu)

}

func playerDied() {
    if self.interstitial.isReady {
        self.interstitial.present(fromRootViewController: self)
    }
}

func loadAd() -> GADInterstitial {
    let interstitial = GADInterstitial(adUnitID: "ca-app-pub-3940256099942544/1033173712")
    interstitial.delegate = self
    interstitial.load(GADRequest())
    return interstitial
}

func interstitialDidDismissScreen(_ ad: GADInterstitial) {
    NotificationCenter.default.post(name: NSNotification.Name("AdDismissed"), object: nil)
    interstitial = loadAd()
}

override func viewWillLayoutSubviews() {
    super.viewWillLayoutSubviews()

    if let url = musicUrl {
        try! musicPlayer = AVAudioPlayer(contentsOf: url)

        musicPlayer.numberOfLoops = -1
        musicPlayer.prepareToPlay()
        musicPlayer.play()

    }

}

我使用NotificationCenter向GameViewController发出信号，告知何时展示广告。我不认为需要来自GameScene的代码，但如果你认为它会有所帮助，那就问问吧。谢谢！

SKScene在使用Swift显示插页式广告时进行切换

0 个答案: