Facebook SDK for Android
In Android SDK
People can easily sign in to your app with their Facebook login.
Get data in and out of Facebook's social graph. Query data, post new stories, upload photos, and more.
Link posts, stories and requests shared from your app back to your app. Handle links and send people to relevant parts of your app.
People can send invites to friends from your app.
Understand people's actions in your app and measure the effectiveness of Mobile App Ads.