Auto Layout Magic Overview
An open source tool that takes the tedium out of creating Auto Layout constraints. Auto Layout Magic can create all the constraints you need in the case where you have a single screen that scales up or down to fit the device screen size. In this case each view has a proportional width and height relative to the screen size and is is placed at an X and Y coordinate which is a proportional distance to the main views trailing and bottom edge. Auto Layout Magic will automatically add these four constraints to all your views saving you a lot of time.