没有调用类委托方法

Question

我的课程结构大致如下

protocol AppointmentModalDelegate: class {
    func didPressSubmitButton()
}

class AppointmentModalView: UIView {

    weak var delegate: AppointmentModalDelegate?

    let doneButton:UIButton = {
        let btn = UIButton()
        return btn
    }()

    override init(frame: CGRect) {
        super.init(frame: .zero)
        self.setupViews()
        self.setupConstraints()
    }

    func setupViews() {
        self.doneButton.addTarget(self, action: #selector(didPressDoneButton), for: .touchUpInside)
    }

    func setupConstraints() {
        // Setup View Constraints
    }

    @objc func didPressDoneButton() {
        self.delegate?.didPressSubmitButton()
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

class AppointmentModal: AppointmentModalDelegate {

    private var rootView:UIView?
    var view:AppointmentModalView?

    init() {
        self.setupViews()
        self.setupConstraints()
    }

    func setupViews() {
        self.view = AppointmentModalView()
        self.view?.delegate = self
    }

    func setupConstraints() {
        // Setup Constraints
    }

    func didPressSubmitButton() {
        print("Did Press Submit Buttom From Delegate")
    }
}

正如你所看到的，我已经在规定的委托AppointmentModalView ，并试图实现它在AppointmentModal ，我还定义了代表价值的自我，但是didPressSubmitButton不会被触发中AppointmentModal类，我缺少什么吗？

UPDATE1：

这基本上是我在UIViewController中调用的模式框，大致上是我在UIViewController中使用它的代码

class AppointmentFormVC: UIViewController {

    @IBOutlet weak var submitButton: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()
        self.submitButton.addTarget(self, action: #selector(didPressSubmitButton), for: .touchUpInside)
    }

    @objc func didPressSubmitButton() {
        let appointmentModal = AppointmentModal()
        appointmentModal.show()
    }
}

谢谢。

Answer 1

appointmentModal不会在任何地方保留

let appointmentModal = AppointmentModal()

它将立即发布

您需要将appointmentModal作为类的实例变量

class AppointmentFormVC: UIViewController {

    let appointmentModal = AppointmentModal()

    @objc func didPressSubmitButton() {
        appointmentModal.show()
    }
}