Two settings UIAlert views not popping up

I’m using the IOS project sample from Github. Onclick of the “Settings”, app goes to settingsView presenting list.
When I click “sign in”, pop-up alertView shows;
1.Login with email.
2.Login with SSO.
When I click any of 1 or 2, nothing is displayed further. Just returns to mainView. I keep trying and just always returns to mainView.

hi stor:

iOS SDK Sample is one sample project illustrate how to use SDK API. It does not involved to much App level UI design.

Thank you for choose zoom.