编译出错
非“@objc”方法“paymentAuthorizationViewControllerDidFinish”不满足“@objc”协议“PKPaymentAuthorizationViewControllerDelegate”的要求
如果我在 paymentAuthorizationViewControllerDidFinish 之前添加@objc，那么我会得到新的错误
@objc 只能与类的成员、@objc 协议和类的具体扩展一起使用。
我可以直接扩展 Handler ，PKPaymentAuthorizationViewControllerDelegate但我有两个不同的扩展类，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
{
}