In this chapter, we will cover:
On May 24, 2007, Mark Zuckerberg announced the Facebook platform, a development platform for programmers to create social applications within Facebook.
When Facebook launched the development platform, numerous applications had been built, and already had millions of users playing them. The social networking application utilizes the Facebook collection of APIs that enables you to connect to Facebook and send application request notifications, so that you can add them to your list of friends.
In this chapter, we will take a look at how to download the Facebook iOS SDK and register your iOS application, so that it can be used with Facebook. We will then start by creating a simple application and look at how we can add the Facebook iOS SDK into our project, so that the user can sign in to their Facebook account in order to send notification requests as well as submit news feeds directly to their home page wall.
Finally, we will look at how to implement the Single Sign On (SSO) feature of the Facebook iOS SDK that allows the user to sign in to your application using their Facebook identity.