Question

我有这个游戏项目，并且有一个投币系统。我还为用户提供了一个观看视频广告的选项，以使其总数增加50个硬币。由于商店页面是SKScene，我通过视图控制器运行广告，并在完成展示后，视图控制器在场景内运行一个功能，该功能应该更新硬币数量和显示它们的标签。

这是我的视图控制器的代码：

class GameViewController: UIViewController , GADRewardBasedVideoAdDelegate {

var rewardBasedVideo: GADRewardBasedVideoAd!
var rewardvideoisinprogress = false
var interstitial: GADInterstitial!

var adcounter = 0

override func viewDidLoad() {
    super.viewDidLoad()

    adcounter = UserDefaults.standard.integer(forKey: "AdCounter")
    print(adcounter)

    createandloadvideoad()

    interstitial = GADInterstitial(adUnitID: "ca-app-pub-3343126174384559/7308554354")
    let request = GADRequest()
    interstitial.load(request)

    ThemeShop().updatecoins()

    NotificationCenter.default.addObserver(self, selector: #selector(GameViewController.presentvideoad), name: NSNotification.Name("video"), object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(GameViewController.inter), name: NSNotification.Name("inter_"), object: nil)

    if let view = self.view as! SKView? {
        // Load the SKScene from 'GameScene.sks'
        if let scene = SKScene(fileNamed: "MainMenu") {
            // Set the scale mode to scale to fit the window
            scene.scaleMode = .aspectFill

            // Present the scene
            view.presentScene(scene)
        }

        view.ignoresSiblingOrder = true 
    }
}

@objc func inter(){
    adcounter = adcounter + 1
    print(adcounter)
    if adcounter == 2{
        adcounter = 0
        if interstitial.isReady {
            interstitial.present(fromRootViewController: self)
            interstitial = createad()
        } else {
            print("Ad wasn't ready")
        }
    }
    UserDefaults.standard.set(adcounter, forKey: "AdCounter")  
}

func createad() -> GADInterstitial {
    let inter = GADInterstitial(adUnitID: "ca-app-pub-3343126174384559/7308554354`")

    inter.load(GADRequest())

    return inter
}

func createandloadvideoad(){
    rewardBasedVideo = GADRewardBasedVideoAd.sharedInstance()
    rewardBasedVideo?.delegate = self
    if !rewardvideoisinprogress && rewardBasedVideo?.isReady == false{

        //ca-app-pub-3343126174384559/3425197396
        rewardBasedVideo?.load(GADRequest(), withAdUnitID: "ca-app-pub-3940256099942544/1712485313")
        rewardvideoisinprogress = true
    }
}

@objc func presentvideoad(){
    if rewardBasedVideo?.isReady == true{
        rewardBasedVideo?.present(fromRootViewController: self)

    }else{
        print("Was NOt Reardyadjfsjfsalfkj")

    }
    createandloadvideoad()
}

func rewardBasedVideoAd(_ rewardBasedVideoAd: GADRewardBasedVideoAd,
                        didFailToLoadWithError error: Error) {
    print("Reward based video ad failed to load: \(error.localizedDescription)")
    rewardvideoisinprogress = false
}

func rewardBasedVideoAdDidReceive(_ rewardBasedVideoAd: GADRewardBasedVideoAd) {
    print("Reward based video ad is received.")
}

func rewardBasedVideoAdDidOpen(_ rewardBasedVideoAd: GADRewardBasedVideoAd) {
    print("Opened reward based video ad.")
}

func rewardBasedVideoAdDidStartPlaying(_ rewardBasedVideoAd: GADRewardBasedVideoAd) {
    print("Reward based video ad started playing.")
}

func rewardBasedVideoAdDidClose(_ rewardBasedVideoAd: GADRewardBasedVideoAd) {
    rewardvideoisinprogress = false

    DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(1500) , execute: {
        print("Brikdsajfaslkd")
        ThemeShop().updatecoins()
    })
}

func rewardBasedVideoAd(_ rewardBasedVideoAd: GADRewardBasedVideoAd,
                        didRewardUserWith reward: GADAdReward) {
    var coins = UserDefaults.standard.integer(forKey: "Coins")
    coins = coins + 50
    UserDefaults.standard.set(coins, forKey: "Coins")  
}

}

这是SKScene内部的功能：

func updatecoins(){
    print("Updating")
    coins = UserDefaults.standard.integer(forKey: "Coins")
    print("Coins: \(coins)")

    self.coinlabel.text = String(self.coins)
    print(self.coinlabel.text)  
}

我知道硬币会被添加到幕后的天平中，因为如果我退出现场并重新进入，硬币就会像应该的那样出现。

Answer 1

您要在ThemeShop的类变量上调用函数，您需要在该类的实例变量上调用func。

您没有显示ViewController代码，因此您可能必须对此进行相应调整

在viewController顶部具有一个场景变量

private var themeShop: ThemeShop!

然后在加载场景时在viewDidLoad中将其放在变量内

//this is if you are loading your scene from an sks file. 
//your code may be different if it is just loaded from code with no sks file
if let scene = SKScene(fileNamed: "ThemeShop") {
    self.themeShop = scene

然后在需要访问场景时在viewController中

func rewardBasedVideoAdDidClose(_ rewardBasedVideoAd: GADRewardBasedVideoAd) {
    rewardvideoisinprogress = false

    sleep(1)
    themeShop.updatecoins()  
}

Answer 2

我认为您的标签未更新，因为您不在Index time [s/1000] PPG Elapsed Time 0 2019-05-27 15:17:22+00:00 29441.0 -00:00:00.04 1 2019-05-27 15:17:22.013333252+00:00 29544.0 -00:00:00.027 2 2019-05-27 15:17:22.026666748+00:00 29645.0 -00:00:00.014 3 2019-05-27 15:17:22.040000+00:00 29743.0 0 4 2019-05-27 15:17:22.053333252+00:00 29837.0 00:00:00.013队列中。我也对您的代码进行了一些更改。您不应该使用main更好地使用sleep()：

asyncAfter

SKLabelNode不会从功能更新文本

2 个答案: