Set Constant for all Devices

Question

I'm trying to set a constant between iPhone (4,5,6...) and iPad, but I can't do a difference between iPhone 4 and iPhone 6 for example, so how to do ?

Answer 1

this question has a script that i use for this purpose

Detect current device with UI_USER_INTERFACE_IDIOM() in Swift

use it, and define constraints constant according to the device, and that's it. :)