Emteria.OS is the first proper Android release for the Raspberry Pi. Though there is already the RTAndroid, an older solution, Emteria.OS is a full build of Android, and you can get it for free to use as an individual.
In this guide, you will learn to use Emteria.OS to get Android running on your Raspberry Pi, and download Android apps on it.
Completing this guide will enable you to use the Android operating system on the Raspberry Pi in your future projects!