Ios 带迅捷条纹_Ios_Swift_Swiftui_Stripe Payments

Ios 带迅捷条纹

ios swift swiftui stripe-payments

Ios 带迅捷条纹,ios,swift,swiftui,stripe-payments,Ios,Swift,Swiftui,Stripe Payments,我正在尝试使用STPApplePayContextDelegate在我的SwiftUI应用程序中实现Stripe 我已经创建了一个类，它符合这个委托，但是没有运气。我得到了这个错误：//表达式类型不明确，没有更多的上下文在这一行让applePayContext=stppapplepaycontext（paymentRequest:paymentRequest，delegate:self）我做错了什么 struct PaymentButtonController : UIViewControll

我正在尝试使用

STPApplePayContextDelegate

在我的SwiftUI应用程序中实现Stripe

我已经创建了一个类，它符合这个委托，但是没有运气。我得到了这个错误：

//表达式类型不明确，没有更多的上下文

在这一行

让applePayContext=stppapplepaycontext（paymentRequest:paymentRequest，delegate:self）

我做错了什么

struct PaymentButtonController : UIViewControllerRepresentable {
    
    class Coordinator : NSObject, STPApplePayContextDelegate {
        var vc : UIViewController?
        
        @objc func buttonPressed() {
            let merchantIdentifier = "merchant.com.your_app_name"
            let paymentRequest = StripeAPI.paymentRequest(withMerchantIdentifier: merchantIdentifier, country: "US", currency: "USD")

            // Configure the line items on the payment request
            paymentRequest.paymentSummaryItems = [
                // The final line should represent your company;
                // it'll be prepended with the word "Pay" (i.e. "Pay iHats, Inc $50")
                PKPaymentSummaryItem(label: "iHats, Inc", amount: 50.00),
            ]
            
            // Initialize an STPApplePayContext instance
                if let applePayContext = STPApplePayContext(paymentRequest: paymentRequest, delegate: self) {
                    // Present Apple Pay payment sheet
                    if let vc = vc {
                        applePayContext.presentApplePay(on: vc)
                    }
                    
                } else {
                    // There is a problem with your Apple Pay configuration
                }
        }
        
        func applePayContext(_ context: STPApplePayContext, didCreatePaymentMethod paymentMethod: STPPaymentMethod, paymentInformation: PKPayment, completion: @escaping STPIntentClientSecretCompletionBlock) {
            let clientSecret = "..."
            print("ENDLICH")
            // Retrieve the PaymentIntent client secret from your backend (see Server-side step above)
            // Call the completion block with the client secret or an error
            completion(clientSecret, nil);
        }
        
        func applePayContext(_ context: STPApplePayContext, didCompleteWith status: STPPaymentStatus, error: Error?) {
            print("ENDLICH")
            switch status {
            case .success:
                // Payment succeeded, show a receipt view
                break
            case .error:
                // Payment failed, show the error
                break
            case .userCancellation:
                // User cancelled the payment
                break
            @unknown default:
                fatalError()
            }
        }
    }
    
    func makeCoordinator() -> Coordinator {
        return Coordinator()
    }
    
    func makeUIViewController(context: Context) -> UIViewController {
        let button = PKPaymentButton(paymentButtonType: .plain, paymentButtonStyle: .automatic)
        button.addTarget(context.coordinator, action: #selector(context.coordinator.buttonPressed), for: .touchUpInside)
        let vc = UIViewController()
        context.coordinator.vc = vc
        vc.view.addSubview(button)
        return vc
    }
    
    func updateUIViewController(_ uiViewController: UIViewControllerType, context: Context) {
        
    }
}

您正在调用的函数（

presentApplePay

）需要一个

UIViewController

作为其输入，但您正在传递

self

，它是您的

ApplePayContext

，上面定义为

NSObject、ObservableObject、STApplePayContextDelegate

您将要面临的挑战是获得传递给它的

UIViewController

上下文，因为在纯SwiftUI中您将不会有任何对

UIViewController

的引用

您有几种可能的解决方案：

在SceneDelegate中，将UIHostingController的引用向下传递到视图，然后将其用作

presentApplePay

使用

UIViewControllerRepresentable

获取一个UIViewController，您可以将其作为参数（）

使用类似SwiftUI内省的库将底层UIViewController获取到当前SwiftUI视图（）

更新：作为对代码请求的响应，这里有一些东西可以开始。注意，并不是所有的东西都连接好了——您需要连接buttonPressed方法，向按钮添加布局约束，等等，但是它提供了一种方法来确定如何获取对UIViewController的引用

struct PaymentButtonController : UIViewControllerRepresentable {
    
    class Coordinator : NSObject {
        var vc : UIViewController?
        
        @objc func buttonPressed() {
            print("Button with VC: \(vc)")
        }
    }
    
    func makeCoordinator() -> Coordinator {
        return Coordinator()
    }
    
    func makeUIViewController(context: Context) -> UIViewController {
        let button = PKPaymentButton()
        button.addTarget(context.coordinator, action: #selector(context.coordinator.buttonPressed), for: .touchUpInside)
        let vc = UIViewController()
        context.coordinator.vc = vc
        vc.view.addSubview(button)
        return vc
    }
    
    func updateUIViewController(_ uiViewController: UIViewControllerType, context: Context) {
        
    }
}

通过在SwiftUI代码中使用以下命令，将其嵌入到视图中：

PaymentButtonController()