It might be too late for your project, but I'd highly recommend using Masonry (https://github.com/Masonry/Masonry https://github.com/Masonry/Masonry) for Autola

It might be too late for your project, but I'd highly recommend using Masonry (https://github.com/Masonry/Masonry https://github.com/Masonry/Masonry) for Autolayout. It's a DSL for specifying constraints that is far better than Apple's NSConstraint API and constraint language. Since discovering it I've fallen in love with Autolayout and its abilities — where I used to dislike it before.