Buttons and Labels Not in Place

问题:

I am asking perhaps one of the easiest questions lol but just could not figure it out.

I have some view controllers created based on the screen size of iPhone 7, but when I change devices to iPhone 7plus and iPhoneSE, my labels and buttons were all misplaced...

I have uploaded what they look like in different devices, can somebody please help?

WhatItLooksLikeOniPhone7

WhatItLooksLikeOniPhoneSE

回答1:

To keep the UI elements at a defined place you need to something that will keep the elements at their position. And hence you need to use autolayout. Autolayout is basically a constraint based system which will layout the ui elements. There are many tutorials available.