Proguard and AdMob

 

https://ads-developers.googleblog.com/2015/10/proguard-and-admob-mediation.html

https://gist.github.com/radi-cho/21f2b10372dfed98180925fcf08dfc22

    - proguard custom in proguard-user.txt:

-keep class com.google.unity.** {
   *;
}
-keep public class com.google.android.gms.ads.**{
   public *;
}
-keep public class com.google.ads.**{
   public *;
}
-keepattributes *Annotation*
-dontobfuscate