This is an updated version of this video.
Wojtek Kaliciński introduces the APK Analyzer in Android Studio 2.2. The APK Analyzer gives developers insight into the contents of a release APK, including raw and download file sizes, Android resource and assets previews and a DEX file browser showing package, class and method names and reference counts per file.
Using the Analyzer is a great way to debug any problems with your builds, find ways to optimize your apps for smaller APK size and figure out if your Proguard and Multidex are configured correctly.
Read more about reducing APK size in our guide on developer.android.com/topic/performance/reduce-apk-size.html and find out more about debugging specific problems using the Analyzer in our article on Medium: goo.gl/E2jKui