Create UISlider Programmatically in Swift 4

UISlider control used to select a single value from a continuous range of value.

Initialization UISlider

override func viewDidLoad() {
    super.viewDidLoad()

    let slider = UISlider()
    slider.frame = CGRect(x: 0, y: 0, width: 250, height: 35)
    slider.center = self.view.center

    slider.minimumTrackTintColor = .green
    slider.maximumTrackTintColor = .red
    slider.thumbTintColor = .black

    slider.maximumValue = 100
    slider.minimumValue = 0
    slider.setValue(50, animated: false)

    slider.addTarget(self, action: #selector(ViewController.changeVlaue(_:)), for: .valueChanged)

    self.view.addSubview(slider)

}

Action Handler of UISlider 

@objc func changeVlaue(_ sender: UISlider) {
    print("value is" , Int(sender.value));
}

Output