为什么显示Google非页内广告会更改我的NavigationBar的高度？ Xcode 11.3，iOS 13

Question

[我试图在用户点击打印按钮时在我的应用中显示插页式广告-但是在关闭广告后，我的navigationBar的高度已从44增加到96（在iPhone 11 Pro Max物理测试设备上）。 iPhone 8和iPhone 11 Pro Max的模拟器都发生相同的行为。

我想知道为什么会这样-以及如何防止它发生。高度变化的大约同一时间，日志中会出现一条警告消息（见下文），但我不确定该警告是否与我的navigationBar问题有关（或如何防止）。广告展示成功。

如果我设置为“ myProfile.disableAds = true”，则如下所示的displayInterstitialAd（）函数不会运行，该广告不会显示，并且NavigationBar的高度不会改变。

这是我的代码：

    func createAndLoadInterstitial() -> GADInterstitial {
        var interstitial = GADInterstitial(adUnitID: adUnitInterstitialID)
        interstitial.delegate = self
        interstitial.load(GADRequest())
        print("Loading interstitial...")
        return interstitial
    }

    func displayInterstitialAd() {
        if interstitial.isReady && myProfile.disableAds == false {
            print("Debug:  Interstitial:  NavBarFrame: \(navigationController?.navigationBar.frame)")
            interstitial.present(fromRootViewController: self)
            print("Debug:  Interstitial:  NavBarFrame: \(navigationController?.navigationBar.frame)")
        }
    }


    func interstitialDidDismissScreen(_ ad: GADInterstitial) {
        print("Debug:  InterstitialDelegateDidDismiss:  NavBarFrame: \(navigationController?.navigationBar.frame)")
        print("interstitialDidDismissScreen")
        interstitial = createAndLoadInterstitial() 
    }

这是输出：

Print Button tapped...Showing interstitial ad...
Debug:  Interstitial:  NavBarFrame: Optional((0.0, 44.0, 414.0, 44.0))
interstitialWillPresentScreen
Debug:  InterstitialDelegateWillPresent:  NavBarFrame: Optional((0.0, 44.0, 414.0, 44.0))
Debug:  Interstitial:  NavBarFrame: Optional((0.0, 44.0, 414.0, 44.0))
interstitialWillDismissScreen
2020-01-23 08:36:16.387071-0500 MyApp[53938:23813577] [View] First responder error: non-key window attempting reload - allowing due to manual keyboard (first responder window is <UIWindow: 0x101c4ca10; frame = (0 0; 414 896); hidden = YES; gestureRecognizers = <NSArray: 0x28380a880>; layer = <UIWindowLayer: 0x2836f10a0>>, key window is <UIWindow: 0x101c26b50; frame = (0 0; 414 896); gestureRecognizers = <NSArray: 0x2838e9860>; layer = <UIWindowLayer: 0x28368a8a0>>)
Debug:  InterstitialDelegateDidDismiss:  NavBarFrame: Optional((0.0, 44.0, 414.0, 96.0))
interstitialDidDismissScreen
Loading interstitial...

Answer 1

花了好几天-但我知道了。