title: How to implement Login with FaceBook in iOS app
body: <p>I want to implement an app which uses FaceBook login to enter the app. How can I do this. I have seen few guidelines like this
  <a href="https://developers.facebook.com/docs/howtos/login-with-facebook-using-ios-sdk/" rel="nofollow">https://developers.facebook.com/docs/howtos/login-with-facebook-using-ios-sdk/</a></p>
  
  <p>I want to support iOS 3.0 and above. But really confused how to implement this. Can some one point some useful tutorials ?</p>
  
  <p>Thanks</p>