title: what is the effect of APK file size if Admob is integrated?
body: <p>We added Admob in our live-wallpaper project and its size almost increased from 2 Mb - 4 Mb. we are so much concerned about file size, we are using pro-guard too. Are we doing it wrong or is this just normal? Also is it necessary to add google play service library for integrating admob, is there anyway to avoid it?</p>