No, networking is asynchronous, so the login function requires a callback. However you can add your own blocking by wrapping the login call in a NSOperation or using the appropriate GCD calls. It might be easier to update the app logic to show the appropriate views asynchronously.
about 9 years ago
Yup thanks for the answer, it just dawned on me shortly after posting this that I could just move the login. So that's what I did. Thanks for the info though, good to know.