ReplayKit.swift

import ReplayKit

class ViewController: UIViewController {

    @IBOutlet weak var mainView: UIView!
    
    let controller = RPBroadcastController()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        DispatchTimer(timeInterval: 1) { [weak self] timer in
            self?.mainView.backgroundColor = self?.randomColor()
        }
    }
}