PruebaXIB.swift

override open func awakeFromNib() {
        super.awakeFromNib()
        let nibName = String(describing: type(of: self))
        guard let view = Bundle.main.loadNibNamed(nibName, owner: self, options: nil)?.first as? UIView else { return }
        view.frame = self.bounds
        view.autoresizingMask = [.flexibleHeight,.flexibleWidth]
        self.addSubview(view)
}