ios6 facebook integration login always FBSessionStateClosedLoginFailed never opens

Question

this question is very similar to Facebook SDK for iOS , on iOS 4.0 device, but as I cannot make comments there, I open a new question. I think the questions are not the same:

When trying to update the facebook integration of my app to facebook 3.1 I am not getting the facebook session to open the sessionStateChanged Callback always ends up in FBSessionStateClosedLoginFailed. in my setup I have the callback in my appdelegate

- (BOOL)application:(UIApplication *)application 
            openURL:(NSURL *)url
  sourceApplication:(NSString *)sourceApplication
         annotation:(id)annotation {
    // attempt to extract a token from the url
    //    return [self.session handleOpenURL:url]; 
    return [FBSession.activeSession handleOpenURL:url];
}

but it is never called! shouldn't it get called? I followed the facebook documentation and call

- (BOOL)openSessionWithAllowLoginUI:(BOOL)allowLoginUI {
    NSArray *permissions = [NSArray arrayWithObjects:@"publish_actions", nil];
    return [FBSession openActiveSessionWithPublishPermissions:permissions
                                              defaultAudience:FBSessionDefaultAudienceFriends
                                              allowLoginUI:allowLoginUI
                                         completionHandler:^(FBSession *session,
                                                             FBSessionState state,
                                                             NSError *error) {
                                             [self sessionStateChanged:session
                                                                 state:state
                                                                 error:error];
                                         }];
}

I also tried

openActiveSessionWithReadPermissions with nil for the permissions as in the facebook tutorial example with the intention to reauthorize for the publish_actions permission later. same result: FBSessionStateClosedLoginFailed again.

I even tried calling

ACAccountStore *accountStore;
    ACAccountType *accountTypeFB;
    if ((accountStore = [[ACAccountStore alloc] init]) &&
        (accountTypeFB = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook] ) ){

        NSArray *fbAccounts = [accountStore accountsWithAccountType:accountTypeFB];
        id account;
        if (fbAccounts && [fbAccounts count] > 0 &&
            (account = [fbAccounts objectAtIndex:0])){

            [accountStore renewCredentialsForAccount:account completion:^(ACAccountCredentialRenewResult renewResult, NSError *error) {
                //we don't actually need to inspect renewResult or error.
                if (error){

                }
            }];
        }
    }

before trying to open the session, but I never get it open on my ios6 device (iphone 4s). in the app I am asked for the permission, but then nothing goes on because the session is always having the state FBSessionStateClosedLoginFailed! my callback for the session state is

- (void)sessionStateChanged:(FBSession *)session
                      state:(FBSessionState) state
                      error:(NSError *)error
{
    switch (state) {
        case FBSessionStateOpen:
            if (!error) {
                // We have a valid session
                NSLog(@"User session found");
            }
            break;
        case FBSessionStateClosed:
            NSLog(@"FBSessionStateClosed");
        case FBSessionStateClosedLoginFailed:
            NSLog(@"FBSessionStateClosedLoginFailed");
            [FBSession.activeSession closeAndClearTokenInformation];
            break;
        default:
            break;
    }

    [[NSNotificationCenter defaultCenter]
     postNotificationName:FBSessionStateChangedNotification
     object:session];

    if (error) {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"facebook Hinweis"
                                                        message:@"facebook Login nicht möglich, bitte versuchen Sie es erneut."
                                                       delegate:nil
                                              cancelButtonTitle:@"OK"
                                              otherButtonTitles:nil];
        [alert show];
        NSLog(@"Facebook session error: %@", error.localizedDescription);
    }
}

with the facebook 3.0 on ios 5 I never had an issue so my facebook app is set up correctly. I would really appreciate any help wchich enables me to just open the facebook session, did not think to run into these problems with facebook 3.1 and the docs are not helping me at this point, thx

Answer 1

I had the same problem, and it was because I forgot to implement

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url
{
    return [FBSession.activeSession handleOpenURL:url];
}

in my AppDelegate