SDK 3.1: How to tell whether SDK is using iOS6 accounts or not?

Question

If I have a Facebook account set up in iOS6 but the user has switched it off, the SDK just gives me a FBSessionStateClosedLoginFailed status. From that, I can\'t tell if the use

Answer 1

With iOS 6.0 and later, when you access setting device and turn off facebook integration in your app. You can check it by code

//Callback method for facebook authorization
- (void)sessionStateChanged:(FBSession *)session
                  state:(FBSessionState) state
                  error:(NSError *)error
{
    .....
    if (error) {        
        NSString *valueError = [error.userInfo objectForKey:FBErrorLoginFailedReason];
        if ([valueError compare:FBErrorLoginFailedReasonSystemDisallowedWithoutErrorValue] == NSOrderedSame)
            NSLog(@"To use your Facebook account with this app, open Settings > Facebook and make sure this app is turned on.");
    }
}