How I decreased the power consumption of a native Google Android app (and why)

Best Practices / Code Quality
Talk
Intermediate
English

Session abstract: 

It's not often that an Android developer decides to touch the heart of his favorite OS. The Android Open Source Project (AOSP) comes straight from Google's plants in Palo Alto. Although not perfect, it is sufficiently powerful and reliable to serve as the basis for the operation of 1.4 billion smartphones in the world.
So when one of our customers asked me if we could reduce the power consumption of SystemUI, one of the basic applications of the Android user interface (among other things the status bar), I sincerely had fear. But the experience has been rewarding!
A session to tell you why big energy gains are possible on Android (and more generally on all technos) and how to get these gains.