5月18日 @objc in Protocol

[churabou]

@objc protocol RegistrationControllerProtocol: class {
    func actionBack()
}

extension RegistrationControllerProtocol where Self: UIViewController {

    func setUp() {
     ....#selector(actionBack)
   }

したのはだめ

protocol RegistrationControllerProtocol: class {
   @objc  func actionBack()
}

extension RegistrationControllerProtocol where Self: UIViewController {

    func setUp() {
     ....#selector(actionBack)
   }