Useful UIView extensions

UIView+Extensions.swift

//
//  UIView+Extensions.swift
//

import UIKit

extension UIView {
    convenience init(autolayout: Bool) {
        self.init()
        translatesAutoresizingMaskIntoConstraints = !autolayout
    }
    
    func add(subviews: [UIView]) { subviews.forEach { self.addSubview($0) } }

    func pinEdges(view: UIView, inset: UIEdgeInsets = UIEdgeInsets.zero) -> [NSLayoutConstraint] {
        return [
            leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: inset.left),
            trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: inset.right),
            topAnchor.constraint(equalTo: view.topAnchor, constant: inset.top),
            bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: inset.bottom)
        ]
    }
}