@IBAction func buttonPressed(_ sender: Any) {
    let alert = UIAlertController(
        title: "Cześć!", message: "Nacisnąłeś mnie!", preferredStyle: .alert)
    alert.addAction(
        UIAlertAction(title: "Okej", style: .cancel))
    self.present(alert, animated: true)
}



override func awakeFromNib() {
    super.awakeFromNib()
    self.backgroundColor = .red
}



@IBInspectable var borderWidth : CGFloat {
    get {
        return self.layer.borderWidth
    }
    set {
        self.layer.borderWidth = newValue
    }
}



required init?(coder aDecoder: NSCoder) {
    super.init(coder:aDecoder)
    // Miejsce na dowolny kod.
}



