SnapKit is a DSL to make Auto Layout easy on both iOS and OS X.

import SnapKit

class MyViewController: UIViewController {

    lazy var box = UIView()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.view.addSubview(box)
        box.snp_makeConstraints { (make) -> Void in
           make.width.height.equalTo(50)
           make.center.equalTo(self.view)
        }
    }

}

Resources

• Documentation
• F.A.Q.
• Legacy Platforms (< iOS 8.0, < OS X 10.10)

License

MIT license. See the LICENSE file for details.