In my app, I would like to provide a facebook icon so my users can post to their wall. I have read ALOT about Facebook and the Facebook SDK, but I am hoping some Facebookers out there can give me some ideas on the best approach.

I have built a test app that logs in to facebook, but then I saw another app that brings me to the settings to configure facebook.

SO, what is the best way to do this in an app? Here are some questions:

1) Should I provide the login from my app, or is it better to use the built in native settings?
2) If the settings are better, is there an example of how I bring up the dialog? Do I use SLComposeViewController?
3) Do I ONLY need the Graph API?

I apologize if these questions are silly, but I have seen sooo many different ways, and many are pre 2012, so I do not want to do anything that is old. If I follow the Facebook docs, I do not see anything about the native iOS settings dialog.

Any help is greatly appreciated!!!!