Google Universal Music Player App is a Reference Design for Multiple Hardware Platform Android Apps

Android is reaching many formats of devices out there, including TV sets, consoles, cars and wearables, so it’s hard to develop a cohesive app experience for all of them. Google is helping developers out by releasing an app called Universal Music Player.
The software is used as a reference app that helps developers learn how to get an app on all Android form factors. It relies on a few features found on Android 5.0 and lets devs add support for Android phones and tablets, plus Android Auto and Android Wear. Google Cast devices are also mentioned and everything goes in a single codebase. The Universal Music App makes music control easier on all the devices we mentioned.
It benefits Google to have apps on a variety of Android platforms, including new ones like Android Auto and Android Wear. Developers are able to learn, using this app how to tweak their experience to suit the needs of various gadgets. The variety of volume button implementations, menu areas and color choices is impressive, so that’s why you need a landmark to work with.
You can check out the source code here.