Question

// QuizPopUpViewController.swift
@objc protocol QuizPopUpViewControllerDelegate {
    func ApplyNowToSendBack()
}

class QuizPopUpViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, UITextViewDelegate {
    weak var delegate: QuizPopUpViewControllerDelegate?
}


// giving event from here
 if isError == false {
     self.delegate?.ApplyNowToSendBack() // delegate method
    }
}

// Another Viewcontroller     
class ShortlistViewController: ParentViewController , QuizPopUpViewControllerDelegate {

}

当我将QuizPopUpViewControllerDelegate添加到ShortlistViewController时，我收到以下错误：

类型“ShortlistviewController”不符合协议QuizPopUpViewControllerDelegate

Answer 1

问题正是错误描述所暗示的。您需要使您的班级符合QuizPopUpViewControllerDelegate委托。

为此，您需要声明函数，QuizPopUpViewControllerDelegate。

中的内容

   // Another Viewcontroller     
   class ShortlistViewController: ParentViewController , QuizPopUpViewControllerDelegate {
          func ApplyNowToSendBack() {
            // do something with the callback.
          }
    }

为避免将来提出此类问题，我建议您详细了解delegate pattern in Swift。

ViewController不符合协议xyzDelegate

1 个答案: