AdMob ads are not showing for iOS builds in the last couple of days. It used to work and I didn't change anything.
- iOS - 9.3.5
- IDE - NetBeans 8.0.2
- CodenameOne Plugin - 3.5.2
- OS - Windows 7
Google deprecated the old admob library and discontinued it. We need to update to the latest version for ads to keep working. We plan on updating the cn1lib within the near future, I'm assuming that is the implementation you are referring to.
AdMob ads are not showing because for iOS 9 http URL’s are blocked by Apple. They show up by using the build hint
ios.plistInject=<key>NSAppTransportSecurity</key><dict><key>NSAllowsArbitraryLoads</key><true/></dict>
Take a look at this
https://groups.google.com/forum/#!topic/google-admob-ads-sdk/DeqKJQx_rgk
Based on that the deadline is September 15, so your problem isn't related to this.
来源：https://stackoverflow.com/questions/39294975/admob-ads-not-showing-in-ios