From the document I can't figure out what value should I put in redirect_uri if I want to implement iPhone app. I try https://stackexchange.com/oauth/login_success but it not work and show this error
Application Login Failure
An error occurred while login into an application.
Error Details
error: 0
error description: redirect_uri is not under the registered domain for this application
Updated
I unchecked Disable Desktop Application OAuth Redirect Uri and now it show Authorizing Application. How can my app know if login success ? is there a way to redirect to my app via URL scheme ?