如何使用 Swift 语言展示 AdMob 开屏广告?

How to show AdMob app open ads using Swift language?

之前,我在 iOS 应用中使用了 AdMob 的横幅广告。现在,我想展示其最新发布的开放应用广告。我查看了AdMob的相关网页(enter link description here),但是这个网页的例子都是OC语言的。我不熟悉OC语言。谁能提供 Swift 语言的指导? 提前致谢。

OC代码在这里:https://developers.google.com/admob/ios/app-open-ads

下面的所有代码都转到 AppDelegate.swift

导入GoogleMobileAds:

import GoogleMobileAds

在class定义中添加GADFullScreenContentDelegate:

class AppDelegate: UIResponder, UIApplicationDelegate, GADFullScreenContentDelegate {

添加两个变量:

var appOpenAd: GADAppOpenAd?
var loadTime = Date()

添加这三个函数:

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)
}

最后从 applicationDidBecomeActive() 调用 tryToPresentAd():

func applicationDidBecomeActive(_ application: UIApplication) {
    self.tryToPresentAd()
}

就是这样。

编辑:添加了导入的需要GoogleMobileAds

连同 Mikrasya 的回答,为了在广告失败或消失的情况下加载另一个广告,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")
}

连同 Mikrasya 和 TripleTroop 的答案,如果您需要显示来自 SceneDelegate 的公开广告,您可以使用以下说明:

下面的所有代码都转到 SceneDelegate.swift

导入 Google 移动广告:

import GoogleMobileAds

在 class 定义中添加 GADFullScreenContentDelegate:

class SceneDelegate: UIResponder, UIWindowSceneDelegate, GADFullScreenContentDelegate {

添加变量:

var appOpenAd: GADAppOpenAd?

添加这些函数:

    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")
}

现在我们可以更改 sceneDidBecomeActive 函数来调用打开的广告:

   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.
}