Update iOS Google Mobile Ads SDK

[emiliobongiorno]

Currently the version of the Google Mobile Ads SDK used by Xamarin.Google.iOS.MobileAds is 7.38.0
The latest version is 7.50.0 and has several important updates.

I am having issues showing interstitial ads on iOS13. They are shown as modals (this new 'popups' of iOS 13), and I want to show them on full screen as before.
I used this implementation for iOS Intesrtitials (look for AdInterstitial_iOS class)
I already tried to do something like this but still showing as popups on iOS13:
viewController.ModalPresentationStyle = UIModalPresentationStyle.FullScreen;
I read that the default for iOS 13 is to show them as modal, and that could be the reason why I can't force the interstitial to be shown on full screen.
Am I missing something or there should be an update on this library for fixing that?

[tipa]

The Nuget package apparent got updated to v7.47.0, however my apps now fail to compile:

[SotoiGhost]

@emiliobongiorno An update for Google Mobile Ads has been pushed, please, try updating to see if the update fixes the problem.

@tipa That error seems to happen when Xamarin.Build.Download NuGet was not restored correctly or there was a problem when downloading the Framework. Please, delete the Xamarin.Build.Download cache, bin and obj folders, restore again the NuGets on the solution and try again.

[emiliobongiorno]

It is fixed now!
The ads are shown in full screen.
Thanks @SotoiGhost

[SotoiGhost]

@emiliobongiorno Glad to know that it's working! Closing this issue now! Best!

[tipa]

@SotoiGhost did what you told me (on both PC and Mac) but the error still showed up. Recognized that the XamarinBuildCache folder wasn't recreated so I manually added the Xamarin.Build.Download Nuget package to my project and it then started working. Maybe the library is missing a dependency reference?

Edit: I've spent ~2h on this now but just can't get it to work. There always seems to be something missing or the app crashes with this error:
Foundation.MonoTouchException: 'Objective-C exception thrown. Name: GADInvalidInitializationException Reason: The Google Mobile Ads SDK was initialized without AppMeasurement. Google AdMob publishers, follow instructions here: https://googlemobileadssdk.page.link/admob-ios-update-plist to include the AppMeasurement framework and set the -ObjC linker flag. Google Ad Manager publishers, follow instructions here: https://googlemobileadssdk.page.link/ad-manager-ios-update-plist

Didn't have these crazy problems with the previous NuGet package versions of this lib...

[SotoiGhost]

@tipa Are you using Firebase somehow?

[tipa]

No I am not. I was only able to resolve the problem by manually adding those two Nuget dependencies to my project:
Xamarin.Firebase.iOS.Core
Xamarin.Build.Download
I see that these dependencies are already required by Xamarin.Google.iOS.MobileAds but for some reason they weren't pulled in correctly. I don't know if this is a problem of Nuget, this library or Xamarin, but from a developer perspective I shouldn't have to manually add those dependencies

[SotoiGhost]

The Xamarin.Firebase.iOS.Core NuGet is a new dependency for it, but Xamarin.Build.Download package has been a dependency for a while. I can't really tell what happened there, but if you can reproduce a test case, would be great to open a new issue to try to fix it.

[tipa]

It's very easy to produce a test case, simply create a new Xamarin iOS App in Visual Studio, add the MobileAds Nuget package and the problem already occurs on my machine.
Example project: AdTest.zip

[itsabhiaryan]

Have you updated your Info.plist, need to update if you're using latest framework

Declare that your app is an Ad Manager app by adding the GADIsAdManagerApp key with a boolean value YES to your app's Info.plist.

<key>GADIsAdManagerApp</key>
<true/>

[tipa]

same error after adding this key