objective c - Dynamic layout for Multilple iOS devices?

Question

I am developing an app in iOS.Earlier i was creating separate storyboards for separate iOS devices but now i am using Auto layout & Size classes for supporting multiple iOS devices.I have created a login screen.I have not specified any width or height of views But i have given leading space & trailing space,also the top & bottom space.This is sample image

In image the size of image is expanded according to dimensions of iPad but i don't want it to image look too large.I want the same height & weight ratio as in iPhone.Please suggest how to do ?

Answer 1

all you need to set aspect ratio for maintaining the height:width according to screen size..check out images and constraints

as here, i give the aspect ratio 1:1 ...so according to screen size it maintains it..like below..