viewController.swift

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Create MaskedLabelView
        let edges = UIEdgeInsets(top: 0, left: 20, bottom: 0, right: 20)
        let maskedView = MaskedLabelView(frame: view.frame.inset(by: edges))
        view.addSubview(maskedView)
        // Setup UILabel preferences
        maskedView.label.text = "Load your iOS Dev exp\nJust a min"
        maskedView.label.textColor = .black
        maskedView.label.font = .boldSystemFont(ofSize: 34)
        // Setup Gradient Colors
        maskedView.startColor = .red
        maskedView.endColor = .black
        // Setup Animation properties
        maskedView.duration = 3
        maskedView.repeatCount = Float.infinity
        // Start Animation
        maskedView.animate()
    }

}