Ios 如何从广播更改屏幕录制器中的摄像机卷名

我有一个屏幕录像机，带有

RPBroadcastActivityViewController

和

Replaykit

当我点击录像机时，应用程序名为

Camera Roll

开始录制，我想将此名称更改为

App Project

名称。我在项目中找不到摄影机卷名称，我想更改它

class MyScreen: UIViewController , RPBroadcastActivityViewControllerDelegate 

  override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        UIScreen.main.addObserver(self, forKeyPath: "captured", options: .new, context: nil)
         }


let broadcastPickerView = RPSystemBroadcastPickerView(frame: CGRect(x:0, y: 0, width: btnRS.frame.width, height: btnRS.frame.height))
    broadcastPickerView.translatesAutoresizingMaskIntoConstraints = false
    if let button = broadcastPickerView.subviews.first as? UIButton {
        button.imageView?.tintColor = UIColor.white

    }


    btnRS.addSubview(broadcastPickerView)
    broadcastPickerView.tintColor = .yellow
    broadcastPickerView.backgroundColor = .clear
    broadcastPickerView.showsMicrophoneButton = true

    btnRS.titleEdgeInsets = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)


}