Nah. NSLayoutAnchor is pretty neat! But it's still a bit tedious of an API. Try writing .translatesAutoresizingMaskIntoConstraints = true and .active = true 10 times over. But we can make it a bit easier with a very thin layer of abstraction.

How about I show you?

I am a cool developer, making a cool app. It has so many views. I want to pin my view to it's superview.

myView.pinToSuperview()

That was easy, but I don't want to pin to a superview anymore, I want to pin to a button.

myView.pinToView(someCoolerButton)

Ah, ok. Easy enough… How about pinning my label to the left and right side of it's superview… and with insets… and center it in my view.

MYCAPITALIZEDLABEL.pinToSuperview([ .leading,(10.0) .trailing(10.0), .centerX, .centerY ])

Whoa, that was neat! You can specify a group of edges you want to pin to, and their offsets. Swift enums are the best!

And of course, you can pick one edge to pin to another edge.

myImportantLabel.pinEdge(.top, toEdge: .bottom, ofView: myGreatSearchBar, constant: 10.0)

Last but not least, set constant values for your constraints. For width, height, or both.

myView.setSize([ .width(44.0), .height(44.0) ])

That's all I got! But who are you stranger?

Hi, I'm Joe! @mergesort everywhere on the web, but especially on Twitter.

Hopefully Anchorman is your cup of tea, it's the kind of autolayout library I'd want to use. And with that, good night San Diego.