Question

I am using Facebook Connect for iPhone and following the official instructions. I use the following code to display the login dialog:

FBLoginDialog* dialog = [[[FBLoginDialog alloc] initWithSession:session] autorelease];
[dialog show];

(Note that the results are the same when I go with the FBLoginButton approach instead of showing the dialog directly.)

The dialog pops up as expected, but as you see in the screenshot below, it is way too large and looks like the full Facebook homepage. I can pan the dialog to reveal the login button, but once I log in it proceeds to show the regular Facebook page inside the dialog. It never calls my session:didLogin callback.

Is there something I’m doing wrong?

alt text http://img.skitch.com/20091115-t24w7p5gpa6iqgehjdc4f1awfs.jpg

Answer 1

I finally figured it out… I was initializing the FBSession inside my app delegate’s applicationDidFinishLaunching method. I then triggered the Facebook login code in my view controller’s viewDidAppear.

However, applicationDidFinishLaunching looked like this:

- (void)applicationDidFinishLaunching:(UIApplication *)application {    
    [window addSubview:viewController.view];
    [window makeKeyAndVisible];

    self.session = [FBSession sessionForApplication:FB_API_KEY secret:FB_APP_SECRET delegate:self];
}

This means that I was showing the window before I was initializing the FBSession, and apparently a nil session leads to the behavior I described above. After changing applicationDidFinishLaunching to create the FBSession first, everything now works as expected. Doh… 😉