Auto Layout Anchor Extension Programmatically

AutoLayoutAnchorExtension.swift

import UIKit

//MARK: - Auto Layout Anchor Extension
extension UIView {
    
    func anchor(top: NSLayoutYAxisAnchor?, bottom: NSLayoutYAxisAnchor?, leading: NSLayoutXAxisAnchor?, trailing: NSLayoutXAxisAnchor?, padding: UIEdgeInsets = .zero, size: CGSize = .zero) {
        
        
        if let top = top {
            topAnchor.constraint(equalTo: top, constant: padding.top).isActive = true
        }
        
        if let bottom = bottom {
            bottomAnchor.constraint(equalTo: bottom, constant: -padding.bottom).isActive = true
        }
        
        if let leading = leading {
            leadingAnchor.constraint(equalTo: leading, constant: padding.left).isActive = true
        }
        
        if let trailing = trailing {
            trailingAnchor.constraint(equalTo: trailing, constant: -padding.right).isActive = true
        }
        
        
        if size.width != 0 {
            widthAnchor.constraint(equalToConstant: size.width).isActive = true
        }
        
        if size.height != 0 {
            heightAnchor.constraint(equalToConstant: size.height).isActive = true
        }
        
    }
}