Token Based Authentication With Volley

Since Google IO 2013 volley is the recommended network library for android.

https://www.youtube.com/watch?v=yhv8l9F44qo

You'll find basic examples and traingin in the official documentation on d.android.com

https://developer.android.com/training/volley/index.html

Here you can see how to authenticate with a RESTful API to request an auth token.