我有几个问题让我感到困惑:

Refreshing ads

We recommend that you have ads persist for 60 seconds or longer, depending on the functionality of your app. Our internal tests have shown that this ensures users have enough time to engage with ads, providing the best performance for both advertisers and publishers. Furthermore, these tests have shown that refreshing ads more often can hurt fill rate for our publishers.

If your app is automatically refreshing ads, make sure ad requests are not made when the screen is off. Also, if users navigate to and from pages with ads in an app over a short period of time, a new ad request should not be made sooner than the recommended 60 second rate.

Banner ads

We recommend using the Google-optimized automatic refresh rate. The optimized rate is calculated using AdMob historical data to ensure the ads shown in your ad units are being refreshed at the best rate for banner ads.

You may also set a custom refresh rate of 30-120 seconds or disable refresh rate completely.

var timer: Timer?

override viewDidLoad() {
    super.viewDidLoad()

    // instantiate bannerView ...

    NotificationCenter.default.addObserver(self, selector: #selector(startAdRefreshTimer), name: UIApplication.willEnterForegroundNotification, object: nil)

    // *** the screen is OFF
    NotificationCenter.default.addObserver(self, selector: #selector(stopAdRefreshTimer), name: UIApplication.willResignActiveNotification, object: nil)
}

override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

        startAdRefreshTimer()
}

// *** the screen is OFF
override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)

        stopAdRefreshTimer()
}

@objc func startAdRefreshTimer() {

    timer?.invalidate()
    timer = Timer.scheduledTimer(withTimeInterval: 30,
                                 repeats: true,
                                 block: { [weak self](timer) in
                                            self?.refreshAd()
    })
}

func refreshAd() {

    bannerView.load(GADRequest())
}


@objc func stopAdRefreshTimer() {
    if timer != nil {
        timer?.invalidate()
        timer = nil
    }
}

// this really isn't necessary because of what's in viewWillDisappear but I added it anyway
@objc func buttonToPushNextVCTapped() {

    let nextVC = NextVC()
    navigationController?.pushViewController(viewController: nextVC, animated: true, completion: { [weak self] in

        // *** the screen is OFF
        self?.stopAdRefreshTimer()
    })
}

最佳答案

回答我的第一、第二和第三个问题:

第一个这是我的 setup, I have the bannerView inside a headerView 似乎是 totally fine 。我也在使用 TabBarController 。顺便说一句， collectionView 所在的 vc 处理 bannerView 和 load(GADRequest()) 。 headerView 只显示广告，所以我不必担心它会随着用户滚动和 headerView 被回收而不断被调用。您可以阅读我的设置中的链接以获取更多详细信息。

第二个 AdMob 的 BannerView 有一个 delegate method，它在收到新广告时被调用:

MyController: GADBannerViewDelegate {

    /// Tells the delegate an ad request loaded an ad.
    func adViewDidReceiveAd(_ bannerView: GADBannerView) {
        print("adViewDidReceiveAd")
    }
}

关于ios - AdMob 刷新请求，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57412813/