AutoLayout doesn't work fine

Question

I'm trying create an app compatible with iPhone 4s and 5 but when I run in iphone 4S my screen appears wrong...

Look at the images

Answer 1

You aren't explicitly stating the relationship between the login button, and the other buttons, so the constraint is just leaving it where it is, whereas the other buttons do have constraints, and are being adjusted accordingly. Try adding a constraint to the login button