如何在2个ViewControllers之间传递数据而不显示视图控制器、连续或更改帧

protocol DataTransferDelegate: AnyObject {
    func didTransferData(data: Any)
}

class SenderViewController: UIViewController {
    weak var delegate: DataTransferDelegate?

    func sendData() {
        let data = "Hello, Receiver!"
        delegate?.didTransferData(data: data)
    }
}

class ReceiverViewController: UIViewController, DataTransferDelegate {
    override func viewDidLoad() {
        super.viewDidLoad()
        // 设置为发送者的代理
        let senderVC = SenderViewController()
        senderVC.delegate = self
    }

    func didTransferData(data: Any) {
        if let stringData = data as? String {
            print(stringData)
        }
    }
}

class SenderViewController: UIViewController {
    var dataTransferCompletion: ((Any) -> Void)?

    func sendData() {
        let data = "Hello, Receiver!"
        dataTransferCompletion?(data)
    }
}

class ReceiverViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        // 设置闭包
        let senderVC = SenderViewController()
        sender.jsdataTransferCompletion = { [weak self] data in
            if let stringData = data as? String {
                print(stringData)
            }
        }
    }
}

let DataTransferNotification = Notification.Name("DataTransferNotification")

class SenderViewController: UIViewController {
    func sendData() {
        let data = "Hello, Receiver!"
        NotificationCenter.default.post(name: DataTransferNotification, object: nil, userInfo: ["data": data])
    }
}

class ReceiverViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        // 注册通知
        NotificationCenter.default.addObserver(self, selector: #selector(handleDataTransferNotification(_:)), name: DataTransferNotification, object: nil)
    }

    @objc func handleDataTransferNotification(_ notification: Notification) {
        if let userInfo = notification.userInfo, let data = userInfo["data"] as? String {
            print(data)
        }
    }

    deinit {
        // 移除通知观察者
        NotificationCenter.default.removeObserver(self, name: DataTransferNotification, object: nil)
    }
}