错误：Apple pay 未完成

Question

我已经使用 Passkit 框架在我的 iOS 应用程序中实现了 Apple Pay。我做了所有 这些事情来设置 Apple Pay。我正在使用沙箱帐户。我在钱包应用程序中添加了卡片，这些卡片是我从这个链接复制的测试卡片。我正在使用的这段代码：

 print("\(((self.grandTotalLabel.text!).replacingOccurrences(of: "$", with: "")))")

        let paymentNetworks = [PKPaymentNetwork.amex]

        if PKPaymentAuthorizationViewController.canMakePayments(usingNetworks: paymentNetworks){

            paymentRequest.supportedNetworks = paymentNetworks
            paymentRequest.merchantCapabilities = .capability3DS
            paymentRequest.requiredShippingAddressFields = [.all]
            paymentRequest.paymentSummaryItems = self.itemToSell(shipping: 10.0)

                            let sameDayShipping = PKShippingMethod(label: "Same day divilery", amount: 12.99)
            sameDayShipping.detail = "Same day divilery Detail"
            sameDayShipping.identifier = "sameDay"

            let twDaysShipping = PKShippingMethod(label: "Two days divilery", amount: 4.99)
            twDaysShipping.detail = "Two days divilery Detail"
            twDaysShipping.identifier = "twoDays"

            let freeShipping = PKShippingMethod(label: "Free shipping divilery", amount: 0.0)
            freeShipping.detail = "Free shipping divilery Detail"
            freeShipping.identifier = "freeShipping"

           // paymentRequest.shippingMethods = [sameDayShipping,twDaysShipping, freeShipping]
            let applePayVC = PKPaymentAuthorizationViewController(paymentRequest: paymentRequest)

            applePayVC?.delegate = self

            self.present(applePayVC!, animated: true) {

                print("ApplePayViewcontroller")

            }
        }
        else{

            print("Please set up for apple pay")

        }




func itemToSell(shipping:Float) -> [PKPaymentSummaryItem]{

        print(Double("\(((self.grandTotalLabel.text!).replacingOccurrences(of: "$", with: "")))") as Any)

        let dishItems = PKPaymentSummaryItem(label: "FoodKonnect", amount: NSDecimalNumber(string: "21.00"))
        let discount = PKPaymentSummaryItem(label: "Discount", amount: 1.0)
        let shipping = PKPaymentSummaryItem(label: "Shipping", amount: NSDecimalNumber(string: "\(shipping)"))

        let totalAmount = dishItems.amount.adding(discount.amount)

        let totalPrice = PKPaymentSummaryItem(label: "FoodKonnect application", amount: totalAmount)

        return [dishItems, discount,shipping, totalPrice]


    }

这些我使用的所有代表 PKPaymentAuthorizationViewControllerDelegate：

extension CartViewController:PKPaymentAuthorizationViewControllerDelegate{

    func paymentAuthorizationViewControllerDidFinish(_ controller: PKPaymentAuthorizationViewController) {

        controller.dismiss(animated: true, completion: nil)

    }

   // @available(iOS 11.0, *)

    func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController, didSelectShippingContact contact: PKContact, completion: @escaping (PKPaymentAuthorizationStatus, [PKShippingMethod], [PKPaymentSummaryItem]) -> Void) {
        print("\(#function)")

    }
    @available(iOS 11.0, *)
    func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController, didSelect shippingMethod: PKShippingMethod, handler completion: @escaping (PKPaymentRequestShippingMethodUpdate) -> Void) {
        print("\(#function)")

    }



    @available(iOS 11.0, *)
    func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController, didAuthorizePayment payment: PKPayment, handler completion: @escaping (PKPaymentAuthorizationResult) -> Void) {


        print("\(#function)")

    }

}

Apple pay viewcontroller 正在显示，此屏幕显示处理圆视图。

但几秒钟后，我收到此错误消息：

我无法弄清楚我到底做错了什么。

Answer 1

在每个实现的PKPaymentAuthorizationViewControllerDelegate具有completion/ 的委托函数中， handler您必须使用适当的参数调用该块，最重要的是使用适当的状态。

在 iOS 11 上（大约）15-20 秒内未调用该块，iOS 正在终止付款并显示您所看到的错误。在 iOS 10 上，它会让你Processing无限期地旋转，直到completion块被调用。

我遇到了同样的问题，结果发现handler在一种边缘情况下我根本没有调用该块。