CommonsWare is here to help you through the challenges of Android app development, whether you are new to the platform or are deep into a project!
The Busy Coder's Guide to Android Development offers over 200 chapters of Android knowledge, from the very basics through highly advanced topics. Updated several times a year, it covers Android Studio 2.2 and the latest Android SDKs, including Android 7.0. And now, you can get it for just $20!
Mark Murphy is scheduled to present on working with Android 7.0's multi-window features at DevFest Florida, November 5, in Orlando, FL.