UIButton extension which enables the caller to duplicate a UIButton

UIButton+Duplicate.swift

//
//  UIButton+Duplicate.swift
//
//  Created by Peter Smith on 04/09/2017.
//

import UIKit

/// UIButton extension which enables the caller to duplicate a UIButton
extension UIButton {
    
    /// Creates a duplicate of the terget UIButton
    /// The caller specified the UIControlEvent types to copy across to the duplicate
    ///
    /// - Parameter controlEvents: UIControlEvent types to copy
    /// - Returns: A UIButton duplicate of the original button
    func duplicate(forControlEvents controlEvents: [UIControlEvents]) -> UIButton? {
        
        // Attempt to duplicate button by archiving and unarchiving the original UIButton
        let archivedButton = NSKeyedArchiver.archivedData(withRootObject: self)
        guard let buttonDuplicate = NSKeyedUnarchiver.unarchiveObject(with: archivedButton) as? UIButton else { return nil }
        
        // Copy targets and associated actions
        self.allTargets.forEach { target in
            
            controlEvents.forEach { controlEvent in
                
                self.actions(forTarget: target, forControlEvent: controlEvent)?.forEach { action in
                    buttonDuplicate.addTarget(target, action: Selector(action), for: controlEvent)
                }
            }
        }
        
        return buttonDuplicate
    }
}