Ios 如何使用Swift语言显示AdMob应用程序开放广告？

以前，我在iOS应用程序中使用AdMob的横幅广告。现在，我想展示其最新发布的开放应用程序广告。我查看了AdMob（）的相关网页，但该网页上的示例都是OC语言。我不熟悉OC语言。有人能用Swift语言提供指导吗？ 提前感谢。

这里的OC代码：

下面的所有代码都转到AppDelegate.swift

导入GoogleMobileAds

：

import GoogleMobileAds

在类定义中添加

GADFullScreenContentDelegate

：

class AppDelegate: UIResponder, UIApplicationDelegate, GADFullScreenContentDelegate {

添加两个变量：

var appOpenAd: GADAppOpenAd?
var loadTime = Date()

增加这三个功能：

func requestAppOpenAd() {
    let request = GADRequest()
    GADAppOpenAd.load(withAdUnitID: "YOUR_ADUNIT_ID",
                      request: request,
                      orientation: UIInterfaceOrientation.portrait,
                      completionHandler: { (appOpenAdIn, _) in
                        self.appOpenAd = appOpenAdIn
                        self.appOpenAd?.fullScreenContentDelegate = self
                        self.loadTime = Date()
                        print("Ad is ready")
                      })
}

func tryToPresentAd() {
    if let gOpenAd = self.appOpenAd, let rwc = self.window?.rootViewController, wasLoadTimeLessThanNHoursAgo(thresholdN: 4) {
        gOpenAd.present(fromRootViewController: rwc)
    } else {
        self.requestAppOpenAd()
    }
}

func wasLoadTimeLessThanNHoursAgo(thresholdN: Int) -> Bool {
    let now = Date()
    let timeIntervalBetweenNowAndLoadTime = now.timeIntervalSince(self.loadTime)
    let secondsPerHour = 3600.0
    let intervalInHours = timeIntervalBetweenNowAndLoadTime / secondsPerHour
    return intervalInHours < Double(thresholdN)
}

    func requestAppOpenAd() {
    let request = GADRequest()
    GADAppOpenAd.load(withAdUnitID: "YOUR_ID",
                      request: request,
                      orientation: UIInterfaceOrientation.portrait,
                      completionHandler: { (appOpenAdIn, _) in
                        self.appOpenAd = appOpenAdIn
                        self.appOpenAd?.fullScreenContentDelegate = self
                        print("Ad is ready")
                      
                      })
    
}

func tryToPresentAd() {
    if let gOpenAd = self.appOpenAd, let rwc = UIApplication.shared.windows.last?.rootViewController {
        gOpenAd.present(fromRootViewController: rwc)
    } else {
        self.requestAppOpenAd()
    }
}

func ad(_ ad: GADFullScreenPresentingAd, didFailToPresentFullScreenContentWithError error: Error) {
    requestAppOpenAd()
}

func adDidDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
    requestAppOpenAd()
}

func adDidPresentFullScreenContent(_ ad: GADFullScreenPresentingAd) {
    print("Ad did present")
}

就这样

---

编辑：添加了导入Google MobileADS和Mikrasya answer的必要性，以便在广告失败或失败时加载另一个广告，您还需要调用以下函数

func ad(_ ad: GADFullScreenPresentingAd, didFailToPresentFullScreenContentWithError error: Error) {
    requestAppOpenAd()
}

func adDidDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
    requestAppOpenAd()
}

func adDidPresentFullScreenContent(_ ad: GADFullScreenPresentingAd) {
    print("Ad did present")
}

---

除了Mikrasya和TripleTroop的答案，如果您需要显示SceneDelegate的开放广告，您可以使用以下说明：

下面的所有代码都转到SceneDelegate.swift

导入GoogleMobileAds：

import GoogleMobileAds

在类定义中添加GADFullScreenContentDelegate:

class SceneDelegate: UIResponder, UIWindowSceneDelegate, GADFullScreenContentDelegate {

添加变量：

var appOpenAd: GADAppOpenAd?

添加以下功能：

func requestAppOpenAd() {
    let request = GADRequest()
    GADAppOpenAd.load(withAdUnitID: "YOUR_ADUNIT_ID",
                      request: request,
                      orientation: UIInterfaceOrientation.portrait,
                      completionHandler: { (appOpenAdIn, _) in
                        self.appOpenAd = appOpenAdIn
                        self.appOpenAd?.fullScreenContentDelegate = self
                        self.loadTime = Date()
                        print("Ad is ready")
                      })
}

func tryToPresentAd() {
    if let gOpenAd = self.appOpenAd, let rwc = self.window?.rootViewController, wasLoadTimeLessThanNHoursAgo(thresholdN: 4) {
        gOpenAd.present(fromRootViewController: rwc)
    } else {
        self.requestAppOpenAd()
    }
}

func wasLoadTimeLessThanNHoursAgo(thresholdN: Int) -> Bool {
    let now = Date()
    let timeIntervalBetweenNowAndLoadTime = now.timeIntervalSince(self.loadTime)
    let secondsPerHour = 3600.0
    let intervalInHours = timeIntervalBetweenNowAndLoadTime / secondsPerHour
    return intervalInHours < Double(thresholdN)
}

    func requestAppOpenAd() {
    let request = GADRequest()
    GADAppOpenAd.load(withAdUnitID: "YOUR_ID",
                      request: request,
                      orientation: UIInterfaceOrientation.portrait,
                      completionHandler: { (appOpenAdIn, _) in
                        self.appOpenAd = appOpenAdIn
                        self.appOpenAd?.fullScreenContentDelegate = self
                        print("Ad is ready")
                      
                      })
    
}

func tryToPresentAd() {
    if let gOpenAd = self.appOpenAd, let rwc = UIApplication.shared.windows.last?.rootViewController {
        gOpenAd.present(fromRootViewController: rwc)
    } else {
        self.requestAppOpenAd()
    }
}

func ad(_ ad: GADFullScreenPresentingAd, didFailToPresentFullScreenContentWithError error: Error) {
    requestAppOpenAd()
}

func adDidDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
    requestAppOpenAd()
}

func adDidPresentFullScreenContent(_ ad: GADFullScreenPresentingAd) {
    print("Ad did present")
}

现在我们可以将
sceneDidBecomeActive
函数更改为调用openads：

   func sceneDidBecomeActive(_ scene: UIScene) {
    self.tryToPresentAd()
    // Called when the scene has moved from an inactive state to an active state.
    // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
}

感谢@Mikrasya，我已经成功地使用app open ad unit ID进行测试，以显示测试的app open ad，但当我切换到我的app open ads unit ID时，即使等待3天，广告也没有填充。我在中国大陆。我想知道这在中国是否是一种普遍现象？或者这是我的AdMob帐户的个人问题？如果ApplicationIDBecomeActive不调用，我该怎么办？同样的问题：（如果未调用ApplicationIDBecMeactive，并且您正在使用SceneDelegate，则应在其中而不是在AppDelegate中添加这段代码