let uButton = UIButton(frame: CGRect(x: 10, y: 10, width: 100, height: 100))
            uBbutton.backgroundColor = .gray
            uButton.tag = 0
            uButton.addTarget(self, action: #selector(pressButton(_:)), for: .touchUpInside)
            self.View.addSubview(uButton)

@objc func pressButton(_ button: UIButton) {
        print("Button with tag: \(button.tag) clicked!")
    }