如何使用 Swift 语言显示 AdMob 应用打开广告？

Question

之前，我在 iOS 应用程序中使用了 AdMob 的横幅广告。 现在，我想展示其最新发布的开放式应用广告。 我查看了 AdMob 的相关 web 页面（在此处输入链接描述），但此页面上的示例都是 OC 语言。 我对OC语言不熟悉。 谁能提供 Swift 语言的指导？ 提前致谢。

Answer 1

此处的 OC 代码： 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()
}

而已。

编辑：添加了导入GoogleMobileAds的需要

Answer 2

除了 Mikrasya 和 TripleTroop 的答案，如果您需要从 SceneDelegate 显示打开的广告，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 class 定义中添加 GADFullScreenContentDelegate：

class SceneDelegate: UIResponder, UIWindowSceneDelegate, GADFullScreenContentDelegate {

添加变量：

var appOpenAd: GADAppOpenAd?

添加这些功能：

    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 function 来调用打开广告：

   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.
}

Answer 3

随着 Mikrasya 的回答，为了在广告失败或关闭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")
}