ios - 如何在点击后退按钮时显示一次 AdMob Interstitial

Question

我有这个代码:

func createAndLoadInterstitial()  {
    interstitial = GADInterstitial(adUnitID: "ca-app-pub-xxxxxxxxxx/xxxxx")
    interstitial.delegate = self
    let request = GADRequest()
    interstitial.loadRequest(request)
}

override func viewDidAppear(animated: Bool) {
    if (interstitial.isReady && showAd) {
        showAd = false
        // print("iterstitialMain is ready")
        interstitial.presentFromRootViewController(self)
        self.createAndLoadInterstitial()
    }
    else {
        showAd = true
    }
}

并且有效。但每次用户点击后退按钮时它都会显示一个广告。

我只想在用户点击后退按钮时显示一次广告。过一段时间再展示广告会更好吗？例如，每 5 分钟一次？

Answer 1

最初在哪里将 showAd 设置为 true？ if 语句中的逻辑是主要问题。

在 if 语句中设置 showAd = false 后，下一次 viewDidAppear 将调用您的 else将执行语句，将 showAd 设置回 true。

您应该做的是检查您的Bool，然后检查interstitial.isReady。然后，在您的 GADInterstitial 的 interstitialDidDismissScreen 委托(delegate)方法中，您将更新您的 showAd Bool 并请求另一个 GADInterstitial 如果您愿意。您说您只想显示一个 GADInterstitial，因此没有必要请求另一个。例如:

override func viewDidAppear(animated: Bool) {
    if showAd { // Should we show an ad?
        if interstitial.isReady { // Is the ad ready?
            interstitial.presentFromRootViewController(self)
        }
    }
    else {
        // Do nothing
    }
}

func interstitialDidDismissScreen(ad: GADInterstitial!) {
    // Ad was presented and dismissed
    print("interstitialDidDismissScreen")
    showAd = false // Don't show anymore ads
}

此外，您还可以更改:

let request = GADRequest()
interstitial.loadRequest(request)

只是:

interstitial.loadRequest(GADRequest())

在您的 createAndLoadInterstitial 函数中。

要回答问题的第二部分，询问您是否应该在延迟一段时间后展示广告，这违反了 AdMob 计划政策。

不合规实现的示例:

• Interstitial ads that appear before the app has opened or after the app has closed.
• Interstitial ads that are triggered after a user closes another interstitial ad.
• Interstitial ads loading unexpectedly while a user is viewing the app’s content. Remember to only serve interstitials between pages of content.
• Interstitial ads that trigger after every user click.
• Interstitial ads that appear during periods of game play or heavy user interaction.