Create custome view.

CustomeView.swift

class CustomeView: UIView {
    
    // This view is the xib's view.
    @IBOutlet var view: UIView!
  
    // MARK: - Initializers  
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupView()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupView()
    }
    
    // MARK: - Private Helper Methods
    // Performs the initial setup.
    fileprivate func setupView() {
        // passing nil in the bundle will take the file from the app's main bundle.
        // nibName is the name of the xib that you have created.
        UINib(nibName: "CustomeView", bundle: nil).instantiate(withOwner: self, options: nil)
        view.frame = self.bounds
        addSubview(view)
    }
}