Swift-导入模块在一个文件中工作，但不在另一个文件中

Question

为了澄清，Stripe 模块给出的错误是没有名为 Stripe 的模块。这是我尝试过的：

文件 1（在这个文件中工作）：

import Foundation
import Stripe
import FirebaseFunctions

let StripeApi = _StripeApi()

class _StripeApi : NSObject, STPCustomerEphemeralKeyProvider {

文件 2（不适用于此文件）：

import UIKit
import Stripe
import FirebaseFunctions

class CheckoutVC: UIViewController, CartItemDelegate {

此外，同一文件给出此错误：“STPPaymentConfiguration”类型的值没有成员“createCardSources”

func setupStripeConfig() {
        let config = STPPaymentConfiguration.shared()
        config.createCardSources = true
        config.requiredBillingAddressFields = .none
        config.requiredShippingAddressFields = [.postalAddress]

        let customerContext = STPCustomerContext(keyProvider: StripeApi)
        paymentContext = STPPaymentContext(customerContext: customerContext, configuration: config, theme: .default())

        paymentContext.paymentAmount = StripeCart.total
        paymentContext.delegate = self
        paymentContext.hostViewController = self

    }

如果有人能让我走上正轨，那将不胜感激。谢谢！

Answer 1

你是重构代码，在 iOS 12 及更高版本中工作。

func setupStripeConfig() {
    let config = STPPaymentConfiguration.shared
    config.requiredBillingAddressFields = .none
    config.requiredShippingAddressFields = [.postalAddress]
    
    let customerContext = STPCustomerContext(keyProvider: StripeApi)
    paymentContext = STPPaymentContext(customerContext: customerContext, configuration: config, theme: .defaultTheme)
    
    paymentContext.paymentAmount = StripeCart.total
    paymentContext.delegate = self
    paymentContext.hostViewController = self
}

你可以把这部分config.createCardSources = true拿出来，所有的错误都会得到解决。

Answer 2

创建一个stripeClient 文件：

import Foundation
import Stripe

class StripeClient {
    
    static let sharedClient = StripeClient()
    
    var baseURLString : String? = nil
    
    var baseURL: URL {
        
        if let URLString = self.baseURLString, let url = URL(string: URLString){
            return url
        }
        else {
            fatalError()
        }
    }
    
    func createAndConfirmPayment(_ token: STPToken, amount: Int, completion: @escaping(_ error: Error?) -> Void) {
        
        let url = self.baseURL.appendingPathComponent("charge")
        
        let params: [String : Any] = ["stripeToken" : token.tokenId, "amount" : amount, "description" : Constants.defaultDescription, "currency" : Constants.defaultCurrency] 

}

将此添加到您的AppDelegate.Swift：

// MARK: - Strip Init

func StripeInit() {
    
//        STPPaymentConfiguration.shared().publishableKey = Constants.publishedKey

    
    STPAPIClient.shared().publishableKey = Constants.publishedKey
    StripeClient.sharedClient.baseURLString = Constants.baseURLString
}
}
   

然后在didFinishLaunchingWithOptions调用它

我创建了CardInfoViewController，其中包含以下内容：

import UIKit
import Stripe

protocol CardInfoViewControllerDelegate {
    
    func doneButtonPressed (_ token: STPToken )
    
    func cancelButtonPressed ()
    
}



class CardInfoViewController: UIViewController {

    // MARK: - Outlets

    @IBOutlet weak var doneButtonOutlet: UIButton!
    
    let paymentCardTextField = STPPaymentCardTextField()
    
    var delegate: CardInfoViewControllerDelegate?
    
    // MARK: - Life Cycle

    override func viewDidLoad() {
        super.viewDidLoad()
        self.navigationController?.navigationBar.tintColor = #colorLiteral(red: 1, green: 0.5763723254, blue: 0, alpha: 1)

        
        paymentCardTextField.delegate = self
        // Modifying card textfield
        
        view.addSubview(paymentCardTextField)
        paymentCardTextField.translatesAutoresizingMaskIntoConstraints = false
        
        view.addConstraint(NSLayoutConstraint(item: paymentCardTextField, attribute: .top, relatedBy: .equal, toItem: doneButtonOutlet, attribute: .bottom, multiplier: 1, constant: 30))
        
        view.addConstraint(NSLayoutConstraint(item: paymentCardTextField, attribute: .trailing, relatedBy: .equal, toItem: view, attribute: .trailing, multiplier: 1, constant: -20))

        view.addConstraint(NSLayoutConstraint(item: paymentCardTextField, attribute: .leading, relatedBy: .equal, toItem: view, attribute: .leading, multiplier: 1, constant: 20))
        
    }
    
    // MARK: - Actions

    @IBAction func cancelButtonAction(_ sender: Any) {
        delegate?.cancelButtonPressed()
        dismissView()
    }
    

    
    @IBAction func doneButtonAction(_ sender: Any) {
        
        processCard()
    }
    
    
    
    // MARK: - Support funcs
    
    private func dismissView() {
        self.dismiss(animated: true, completion: nil)
    }
    
    private func processCard () {
        
        let cardParams = STPCardParams()
        cardParams.number = paymentCardTextField.cardNumber
        cardParams.expMonth = paymentCardTextField.expirationMonth
        cardParams.expYear = paymentCardTextField.expirationYear
        cardParams.cvc = paymentCardTextField.cvc
//        cardParams.addressZip = paymentCardTextField.
         
        STPAPIClient.shared().createToken(withCard: cardParams) { (token, error) in
            
            if error == nil {
                print("Finally we have a token which is \(token!)")
                self.delegate?.doneButtonPressed(token!)
                
                self.dismissView()
            }
            else {
                print("error processing card token \(error!.localizedDescription)")
            }
        }
    }
}

// MARK: - Payment extension

extension CardInfoViewController: STPPaymentCardTextFieldDelegate {
    
    func paymentCardTextFieldDidChange(_ textField: STPPaymentCardTextField) {
        
        doneButtonOutlet.isEnabled = textField.isValid
        if doneButtonOutlet.isEnabled == true {
            doneButtonOutlet.backgroundColor = #colorLiteral(red: 1, green: 0.5763723254, blue: 0, alpha: 1)
        }
        else {
            doneButtonOutlet.backgroundColor = #colorLiteral(red: 0.3333333433, green: 0.3333333433, blue: 0.3333333433, alpha: 1)

        }
    }
}