Question

Using the latest facebook sdk 3.1, I open a session requesting permissions using:

[FBSession openActiveSessionWithReadPermissions:permissions
                                      allowLoginUI:allowLoginUI
                                 completionHandler:^(FBSession *session, FBSessionState state, NSError *error) {
                                     [self sessionStateChanged:session state:state error:error];
                                 }];

My sessionStateChanged method looks like this:

- (void)sessionStateChanged:(FBSession *)session
                        state:(FBSessionState)state
                        error:(NSError *)error
{

    switch (state) {
        case FBSessionStateOpen:
            // handle successful login
            break;
        case FBSessionStateClosed:
        case FBSessionStateClosedLoginFailed:
            // handle failed login
            break;
        default:
            break;
    }
}

Is there any way inside sessionStateChanged to distinguish if this is the first time the user has ever logged in (i.e. they have never before given us permission for this particular app)?

Answer 1

There is no way to know if this is the user’s first time authorizing the application or not. Your best option is to track within your own application if they have logged in before.