Simplifying or rearranging the view hierarchy of your app can improve performance, especially on lower-end devices and earlier versions of Android.

Dario describes how a step-by-step guide for developing Android apps in a Clean way.

Finally, Kotlin has graduated the Beta and folks at Jetbrains are happy to present the Release Candidate Build!

A whole bunch of new docs for Dagger 2 (including some about testing).

A material-styled android view that provisions picking of a date, time & recurrence option, all from a single user-interface.

Tikxml - Modern XML Parser for Android                                                  

When it comes to performance, there’s some stuff you can control, and there’s some stuff that you just have to be aware of, and work around.

Recognize a user's current activity, such as walking, driving, or standing still.