Swift Storyboard; Login, Sign Up, Verify, Profile Pages

I need a login, sign up, verify, and profile page designed in swift storyboard project. I need simple functions implemented when login button pressed where I can then implement server logic. For sign up we need function that allows verification with server than moves to verify page where code can be entered. The image attached show general theme but I need UI to be very nice. The general color scheme is dark background white tabs. You may use color green, but avoid Red. Color gray attached. Should work on all mobile and tablet devices, constrains should be set accordingly.