您如何在Swift和iOS 9中实现iAd预滚视频？

我正在尝试在我的游戏中播放一段预演iAd视频，而不在之后进行视频播放，这就是我在所看到的所有示例中看到的效果。当我开始播放预演iAd时，AV View控制器会显示，但没有播放任何内容，我进入错误案例，如下所示，表示无法播放。我要做的是在像“打开锁”这样的游戏中，如果你看视频广告，它会给你第二次机会

在我的AppDelegate.swift中，我有以下代码来准备iAd视频

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool 
{

        // Override point for customization after application launch.
        AVPlayerViewController.preparePrerollAds()
        return true
}

然后在我的ViewController中，我有以下内容来播放广告

import AVFoundation
import iAd

//this is declared at the top
let adPlayerController = AVPlayerViewController()

//this gets called inside of a function
adPlayerController.playPrerollAdWithCompletionHandler({ (error) -> Void in

            if error != nil
            {
                print(error)
                print("Ad could not be loaded")
            }
            else
            {
                print("Ad loaded")
            }
        })

---

我也想做同样的事情，但在预演视频中失败了。现在我的bannerView有iAd，我用AdMob做视频广告来获得第二次机会

只需下载AdMob并放入您的应用程序。然后导入

import GoogleMobileAds

创建一个变量

var interstitial: GADInterstitial!

然后创建将加载并显示视频广告的func

func loadAd() {

    self.interstitial = GADInterstitial(adUnitID: "ca-app-pub-3940256099942544/4411468910") 
    let request = GADRequest()
    // Requests test ads on test devices.
    request.testDevices = ["e23db0f2cf8d82b7b4f23ede7df2f928"]
    interstitial.delegate = self
    self.interstitial.loadRequest(request)
}

func showAd() {
    if self.interstitial.isReady {
        let vc = self.view!.window?.rootViewController

        self.interstitial.presentFromRootViewController(vc)
    }
}


func interstitial(ad: GADInterstitial!, didFailToReceiveAdWithError error: GADRequestError!) {
    print("Video Ad did not load")

}

func interstitialDidDismissScreen(ad: GADInterstitial!) {

}

func interstitialDidReceiveAd(ad: GADInterstitial!) {

}

func interstitialWillLeaveApplication(ad: GADInterstitial!) {

}

func interstitialWillPresentScreen(ad: GADInterstitial!) {

}

func interstitialWillDismissScreen(ad: GADInterstitial!) {

}

可能的重复可能的重复