Ios 非'@objc'；方法'；付款授权ViewControllerdFinish'；不符合'的要求@objc'；协议

获取编译错误

非“@objc”方法“PaymentAuthorizationViewControllerdFinish”不满足“@objc”协议“PKPaymentAuthorizationViewControllerdDelegate”的要求

如果我在PaymentAuthorizationViewControllerdFinish之前添加@objc，则会得到新的错误

@objc只能用于类的成员、@objc协议和类的具体扩展

我可以使用

PKPaymentAuthorizationViewControllerDelegate

直接扩展处理程序，但我有两个不同的类扩展

ApplePayable

，我不想为不同的类编写相同的扩展

import UIKit
import PassKit

class ApplePayRequestComposer {}

protocol ApplePayable: PKPaymentAuthorizationViewControllerDelegate {

    func applePaymentSheet(composer: ApplePayRequestComposer) -> PKPaymentAuthorizationViewController?
    func processPKPayment(payment:PKPayment, completed:@escaping (_ success:Bool)->())
}


extension ApplePayable {

    func applePaymentSheet(composer: ApplePayRequestComposer) -> PKPaymentAuthorizationViewController?{
        return nil
    }

    func processPKPayment(payment:PKPayment, completed:@escaping (_ success:Bool)->()) {
        completed(false)
    }
}

// PKPaymentAuthorizationViewControllerDelegate implementation
extension ApplePayable
{
    func paymentAuthorizationViewControllerDidFinish(_ controller: PKPaymentAuthorizationViewController) {
        controller.dismiss(animated: true, completion: nil)
    }

    @available(iOS 11.0, *)
    func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController, didAuthorizePayment payment: PKPayment, handler completion: @escaping (PKPaymentAuthorizationResult) -> Swift.Void) {
        processPKPayment(payment: payment) { success in
            let status = success ? PKPaymentAuthorizationStatus.success:PKPaymentAuthorizationStatus.failure
            let result = PKPaymentAuthorizationResult(status: status, errors: nil)
            completion(result)
        }
    }

    func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController, didAuthorizePayment payment: PKPayment, completion: @escaping (PKPaymentAuthorizationStatus) -> Swift.Void) {
        processPKPayment(payment: payment) { success in
            completion(success ? PKPaymentAuthorizationStatus.success: PKPaymentAuthorizationStatus.failure)
        }
    }
}

class Handler: NSObject, ApplePayable
{

}

---

尝试将

@objc

放在

功能付款授权ViewControllerdFinish

之前

    @objc func paymentAuthorizationViewControllerDidFinish(_ controller: PKPaymentAuthorizationViewController) {
        controller.dismiss(animated: true, completion: nil)
    }

---

尝试将

@objc

放在

功能付款授权ViewControllerdFinish

之前

    @objc func paymentAuthorizationViewControllerDidFinish(_ controller: PKPaymentAuthorizationViewController) {
        controller.dismiss(animated: true, completion: nil)
    }

---

这样做我得到了新的错误，objc只能用于类的成员、objc协议和类的具体扩展这样做我得到了新的错误，objc只能用于类的成员、objc协议和类的具体扩展。您正在扩展协议并向其添加实现代码，这是您想要做的吗？你不应该扩展一个实现该协议的类吗？@JoakimDanielson但是如果我想在另一个类中使用相同的扩展，我是否需要编写相同的代码twiceDid你找到解决方案了吗？我也面临同样的问题。您正在扩展协议并向其添加实现代码，这是您想要做的吗？你不应该扩展一个实现该协议的类吗？@JoakimDanielson但是如果我想在另一个类中使用相同的扩展，我是否需要编写相同的代码twiceDid你找到解决方案了吗？我也面临同样的问题。