Question

我遇到了错误

模式不能匹配'SKError'类型的值

但是，当我使用存储套件查找SKError的代码时，我正确输入了错误并且找不到解决方案。（获取4个错误-模式在每种情况下都不能匹配'SKError'类型的值-开关错误中的每种情况。）

func alertForPurchaseResult(result : PurchaseResult) -> UIAlertController {
    switch result {
    case .success(let product):
        print("Purchase Succesful: \(product.productId)")

        return alertWithTitle(title: "Thank You", message: "Purchase completed")
        break
    case .error(let error):
        print("Purchase Failed: \(error)")
        switch error {
        case .failed(let error):
            if (error as NSError).domain == SKErrorDomain {
                return alertWithTitle(title: "Purchase Failed", message: "Check your internet connection or try again later.")
            }
            else {
                return alertWithTitle(title: "Purchase Failed", message: "Unknown Error. Please Contact Support")
            }
            break
        case .invalidProductId(let productID):
            return alertWithTitle(title: "Purchase Failed", message: "\(productID) is not a valid product identifier")
            break
        case .noProductIdentifier:
            return alertWithTitle(title: "Purchase Failed", message: "Product not found")
        break
        case .paymentNotAllowed:
            return alertWithTitle(title: "Purchase Failed", message: "You are not allowed to make payments")
            break

        }
        break
    }
}




func purchase(purchase: RegisteredPurchase){
       NetworkActivityIndicatorManager.NetworkOperationStarted()
       SwiftyStoreKit.purchaseProduct(bundleID + "." + purchase.rawValue, completion: {
        result in
        NetworkActivityIndicatorManager.NetworkOperationFinished()

        if case .success(let product) = result {
            if product.needsFinishTransaction{
                SwiftyStoreKit.finishTransaction(product.transaction)
            }
            self.showAlert(alert: self.alertForPurchaseResult(result: result))
        }
    })
}

Answer 1

我推断您的PurchaseResult类似于：

typealias PurchaseResult = CustomResult<Product, SKError>

（我不知道您的Result类型是什么，但我所知道的是标准Result类型是.failure或.success，而您的{ {1}}代替.error。）

我还假设您必须具有自己的错误类型，例如：

.failure

因此，我首先将enum MyAppError: Error { case invalidProductId(String) case noProductIdentifier case paymentNotAllowed }更改为允许任何相关的错误类型：

PurchaseResult

然后处理各种类型的错误

typealias PurchaseResult = CustomResult<Product, Error>

如果使用的是Swift 5，请输入func alertForPurchaseResult(result: PurchaseResult) -> UIAlertController { switch result { case .success(let product): return alertWithTitle(title: "Thank You", message: "Purchase completed") case .error(let error as SKError): switch error.code { case .unknown: <#code#> case .clientInvalid: <#code#> case .paymentCancelled: <#code#> case .paymentInvalid: <#code#> case .paymentNotAllowed: <#code#> case .storeProductNotAvailable: <#code#> case .cloudServicePermissionDenied: <#code#> case .cloudServiceNetworkConnectionFailed: <#code#> case .cloudServiceRevoked: <#code#> case .privacyAcknowledgementRequired: <#code#> case .unauthorizedRequestData: <#code#> case .invalidOfferIdentifier: <#code#> case .invalidSignature: <#code#> case .missingOfferParams: <#code#> case .invalidOfferPrice: <#code#> @unknown default: <#code#> } case .error(let error as MyAppError): switch error { case .invalidProductId(let productID): return alertWithTitle(title: "Purchase Failed", message: "\(productID) is not a valid product identifier") case .noProductIdentifier: return alertWithTitle(title: "Purchase Failed", message: "Product not found") case .paymentNotAllowed: return alertWithTitle(title: "Purchase Failed", message: "You are not allowed to make payments") } case .error: return alertWithTitle(title: "Purchase Failed", message: "Unknown Error. Please Contact Support.") } }关键字。如果使用的是较早的Swift版本，则可以忽略。

顺便说一句，如果您想知道@unknown的枚举，当我为SKError的{{1}}做一个switch时，它给了我一个“解决”的建议，并为我解决了所有这些问题。

模式无法匹配“ SKError”类型的值

1 个答案: