The Spotify Android SDK allows your application to interact with the Spotify app service. The capabilities of this SDK includes authentication and getting metadata for the currently playing track and context, issuing playback commands and initiating playback of tracks, albums or playlists.

The Spotify Android SDK consists of two libraries

Spotify App Remote manages audio playback via the Spotify Music app using app-remote-control only.
Spotify Authentication Library handles authentication flow and Spotify Web API calls.

The libraries works well together but can also be used separately. For example, if the application doesn't need to play music but needs user login or Web API capabilities with other scopes you can use the Spotify Authentication Library by itself.

Head over to Spotify for Developers for more reading about the Android SDK.

This library contains classes for music playback control and metadata access. The built-in authentication in App Remote requests for app-control-scope only, and is the only scope needed to use App Remote. No token exchange. If more scopes are needed for web-api related calls then use Spotify Authentication Library.

Spotify App Remote README

This library provides a way to obtain OAuth access tokens that can subsequently be used to play music or used in calls to the Spotify Web API.
Spotify Authentication Library is an open source project.

Spotify Authentication Library README

Walk through the quick start documentation on Spotify for Developers.
Run the sample code in app-remote-sample and auth-sample modules.
Add the libraries as module dependencies to your project.

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