swift - 以编程方式填充STPPaymentCardTextField

我正在开发一个应用程序并使用Stripe SDK和Card.io SDK。我想要发生的事情是用Card.io扫描的信用卡值填充STPPaymentCardTextField卡号，到期月和年份。我想：swift - 以编程方式填充STPPaymentCardTextField

var paymentField = STPPaymentCardTextField() 

func userDidProvideCreditCardInfo(cardInfo: CardIOCreditCardInfo!, inPaymentViewController paymentViewController: CardIOPaymentViewController!) { 
    var scanViewController: CardIOPaymentViewController = CardIOPaymentViewController(paymentDelegate: self) 
    paymentField.cardNumber = cardInfo.cardNumber 
    paymentField.expirationMonth = cardInfo.expiryMonth 
    paymentField.expirationYear = cardInfo.expiryYear 

    paymentViewController.dismissViewControllerAnimated(true, completion: nil) 
}

我在每个paymentField追加错误Cannot assign to the result of this expression。你认为我可以用这个做什么？谢谢！

来源

2015-09-16 LEVIS OGCPAS

是吗？我不明白为什么它不应该工作...什么是你的问题，到底是什么？ – mattt

我有一个错误'不能分配给每个'paymentField'追加的这个表达式的结果。 –

STPPaymentCardTextField字段是只读的，您只能从这些属性中“获取”。

STPPaymentCardTextField用于收集信用卡信息。在你的情况下，你已经在使用CardIOCreditCardInfo来做这件事。获得信用卡详细信息后，您可以将数据组装到STPCardParams对象中。

收集卡号，到期时间和CVC后，将它们打包在STPCardParams对象中，并调用STPAPIClient类的createTokenWithCard：方法。现在

你的方法可能看上去像这样...

func userDidProvideCreditCardInfo(cardInfo: CardIOCreditCardInfo!, inPaymentViewController paymentViewController: CardIOPaymentViewController!) { 

     let card: STPCardParams = STPCardParams() 
     card.number = info.cardNumber 
     card.expMonth = info.expiryMonth 
     card.expYear = info.expiryYear 
     card.cvc = info.cvv 

     STPAPIClient.sharedClient().createTokenWithCard(card, completion: {(result, error) -> Void in 
      if error == nil { 
       // Either save the card token with your customer data or charge them right away 
       //createBackendChargeWithToken(token) 
      } 
      else { 
       //handleError(error) 
      } 
     }) 
    } 
    paymentViewController?.dismissViewControllerAnimated(true, completion: nil) 
}

更新可能是正确的回答你的问题。

import Stripe 
class PaymentCardEditorField: STPPaymentCardTextField { 
    func setExistingCard(card: STPCardParams) { 
     replaceField("numberField", withValue: card.number!) 
     replaceField("expirationField", withValue: String(format: "%02d/%02d", card.expMonth, (card.expYear % 100))) 
     replaceField("cvcField", withValue: card.cvc!) 
    } 

    func replaceField(memberName: String, withValue value: String) { 
     let field = self.valueForKey(memberName) as! UITextField 
     let delegate = self as! UITextFieldDelegate 
     let len = field.text?.characters.count 
     if delegate.textField?(field, shouldChangeCharactersInRange: NSMakeRange(0, len!), replacementString: value) ?? false { 
     field.text = value 
     } 
    } 
}

，然后调用setExistingCard

func userDidProvideCreditCardInfo(cardInfo: CardIOCreditCardInfo!, inPaymentViewController paymentViewController: CardIOPaymentViewController!) { 

    let card: STPCardParams = STPCardParams() 
    card.number = info.cardNumber 
    card.expMonth = info.expiryMonth 
    card.expYear = info.expiryYear 
    card.cvc = info.cvv 
    paymentTextField.setExistingCard(card) 
}

就像一个魅力。

按照这个线程的潜在更新条纹SDK在未来的内置支持。

https://github.com/stripe/stripe-ios/issues/127

来源

2015-11-13 02:02:25

swift - 以编程方式填充STPPaymentCardTextField

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