I have refactored my android project and replaced the standalone AdMob library with Google play service for use AD. ( com.google.android.gms.ads.*)
The Google says : The client library has a light footprint if you use ProGuard as part of your build process, so it won't have an adverse impact on your app's file size.
My apk size was 1.1 MB. My apk size now is 2.5 MB.
Is it normal behavior or not ? I think this is a little much size change.
I'm using Proguard and the exception config for Google play service with it. I'm using Eclipse & ADT.