This is fromNib methods converted for Swift 3. This is obtained from StackOverflow here http://stackoverflow.com/questions/24857986/load-a-uiview-from-nib-in-swift

UIViewFromNib.swift

// This came from StackOverflow
// http://stackoverflow.com/questions/24857986/load-a-uiview-from-nib-in-swift
//
// https://gist.github.com/karnlund/b666acc88532d5f1ca591dd3580605cc

import UIKit

public extension UIView {
    public class func fromNib(_ nibName: String? = nil) -> Self? {
        return loadFromNib(nibName)
    }

    public class func loadFromNib<T : UIView>(_ nibName: String? = nil) -> T? {
        var view: T?
        let name: String
        if let nibName = nibName {
            name = nibName
        } else {
            // Most nibs are demangled by practice, if not, just declare string explicitly
            name = self.nibName
        }
        if let nibViews = Bundle.main.loadNibNamed(name, owner: self, options: nil) {
            for nibView in nibViews {
                if let tog = nibView as? T {
                    view = tog
                    break
                }
            }
            return view
        }
        return nil
    }
    
    public class var nibName: String {
        let name = String(describing: self)
        return name
    }
    
    public class var nib: UINib? {
        if let _ = Bundle.main.path(forResource: nibName, ofType: "nib") {
            return UINib(nibName: nibName, bundle: nil)
        } else {
            return nil
        }
    }
}

This works wonderfully.

Note: if you have subclasses you need to make sure you call fromNib on exactly the class you want to create from the nib file.