Integrating AdMob into Unity

Reference documentation#

• Official Unity quick-start guide
• Google Mobile Ads Unity plugin and examples on GitHub

Resolve dependencies#

In Unity, use the Google Mobile Ads dependency tools:

• Android: Assets → Google Mobile Ads → Android → Resolve.
• iOS: Assets → Google Mobile Ads → iOS → CocoaPods.

Fix a missing initialization-listener class#

I encountered this error:

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AndroidJavaException: java.lang.ClassNotFoundException: com.google.android.gms.ads.initialization.OnInitializationCompleteListener

Go to Build Settings → Player Settings → Publishing Settings and enable Custom Proguard File.

Add the following rules to proguard-user.txt:

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