我们在应用内购买应用时遇到了严重的问题。
我们提供3种IAP：自动更新订阅3M，自动更新订阅1Y，一次性非购买（终身访问）
在我们的案例中，有70-80％的交易失败，并且我们大多收到SKError代码= 0或code = 2-无法连接到iTunes Store。根据SKError文档，它是未知错误（代码0）或已取消交易（错误2）。
同一用户有时会多次购买失败，因此很难相信用户有意连续3或4次取消同一产品的交易。
无论iOS版本，设备型号，我们的应用程序版本如何，都会发生。 以下是我们用于提取产品并进行交易的代码。
我们已经检查了多个具有相同问题的线程，但找不到任何解决方案。
我们不提供任何促销活动，产品标识符有效... 一些用户可以毫无问题地进行购买。
有什么想法吗？
import Foundation
import SwiftyStoreKit
import StoreKit
final class IAPService: NSObject {
static let shared = IAPService()
public var isSubscriptionAvailable = false
private var identifiers = ["product_x_id",
"product_y_id",
"product_z_id"]
var products: [SKProduct] = []
var purchaseProducts: [PurchaseProduct] = []
private var successBlock: ((String?,String?)->())? //product Id, receipt
private var errorBlock: ((String)->())?
private var productsRequest: SKProductsRequest?
private var productsRequestCompletionHandler: (()->())?
override init() {
super.init()
SKPaymentQueue.default().add(self)
self.loadProducts()
}
func loadProducts(completion: (()->())? = nil) {
productsRequest?.cancel()
productsRequestCompletionHandler = completion
productsRequest = SKProductsRequest(productIdentifiers: Set(identifiers))
productsRequest?.delegate = self
productsRequest?.start()
}
func purchaseProduct(identifier: String, onSuccess: ((String?,String?) -> ())?, onError: ((String?) -> ())?) {
guard products.count > 0 else {
loadProducts {
self.purchaseProduct(identifier: identifier, onSuccess: onSuccess, onError: onError)
}
return
}
guard let product = self.products.first(where: { (skProduct) -> Bool in
return skProduct.productIdentifier == identifier
}) else {
onError?("IAP error: cannot find product id")
return
}
clearHandlers()
self.successBlock = onSuccess
self.errorBlock = onError
print("Buying \(product.productIdentifier)...")
let payment = SKPayment(product: product)
SKPaymentQueue.default().add(payment)
}
public func restorePurchases(onSuccess: ((String?,String?) -> ())?, onError: ((String?) -> ())?) {
clearHandlers()
self.successBlock = onSuccess
self.errorBlock = onError
SKPaymentQueue.default().restoreCompletedTransactions()
}
public func fetchReceipt(productId: String) {
SwiftyStoreKit.fetchReceipt(forceRefresh: false) { (result) in
switch result {
case .success(let receiptData):
self.successBlock?(productId, receiptData.base64EncodedString(options: []))
self.clearHandlers()
break
case .error(let error):
print("Receipt verification failed: \(error.localizedDescription)")
self.errorBlock?(error.localizedDescription)
self.clearHandlers()
break
}
}
}
private func clearHandlers() {
successBlock = nil
errorBlock = nil
productsRequestCompletionHandler = nil
productsRequest = nil
}
}
extension IAPService: SKProductsRequestDelegate {
public func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
print("Loaded list of products...")
let skProducts = response.products
skProducts.forEach { (skProduct) in
products.append(skProduct)
}
productsRequestCompletionHandler?()
clearHandlers()
}
public func request(_ request: SKRequest, didFailWithError error: Error) {
print("Failed to load list of products: \(error.localizedDescription)")
productsRequestCompletionHandler?()
clearHandlers()
}
}
extension IAPService: SKPaymentTransactionObserver {
public func paymentQueue(_ queue: SKPaymentQueue,
updatedTransactions transactions: [SKPaymentTransaction]) {
for transaction in transactions {
switch transaction.transactionState {
case .purchased:
complete(transaction: transaction)
break
case .failed:
fail(transaction: transaction)
break
case .restored:
restore(transaction: transaction)
break
case .deferred:
break
case .purchasing:
break
}
}
}
private func complete(transaction: SKPaymentTransaction) {
print("complete...")
deliverPurchaseNotificationFor(identifier: transaction.payment.productIdentifier)
SKPaymentQueue.default().finishTransaction(transaction)
}
private func restore(transaction: SKPaymentTransaction) {
guard let productIdentifier = transaction.original?.payment.productIdentifier else { return }
print("restore... \(productIdentifier)")
deliverPurchaseNotificationFor(identifier: productIdentifier)
SKPaymentQueue.default().finishTransaction(transaction)
}
private func fail(transaction: SKPaymentTransaction) {
print("fail...")
var failureReason: String = ""
if let skError = transaction.error as? SKError {
switch skError.code { // https://developer.apple.com/reference/storekit/skerror.code
case .unknown:
failureReason = "Unknown or unexpected error occurred"
break
case .paymentCancelled:
failureReason = "Payment cancelled by user"
break
case .clientInvalid:
failureReason = "Invalid Client"
break
case .paymentInvalid:
failureReason = "Invalid Payment"
break
case .paymentNotAllowed:
failureReason = "Payment not allowed"
break
case .cloudServiceNetworkConnectionFailed:
failureReason = "Cloud service network connection failed"
break
case .cloudServicePermissionDenied:
failureReason = "Cloud service permission denied"
break
case .storeProductNotAvailable:
failureReason = "Store product not available"
break
case .cloudServiceRevoked:
failureReason = "Cloud service revoked"
break
case .privacyAcknowledgementRequired:
failureReason = "Privacy Acknowledgement Required"
break
case .unauthorizedRequestData:
failureReason = "Unauthorized Request Data"
break
case .invalidOfferIdentifier:
failureReason = "Invalid offer identifier"
break
case .invalidSignature:
failureReason = "Invalid signature"
break
case .missingOfferParams:
failureReason = "Missing offer params"
break
case .invalidOfferPrice:
failureReason = "Invalid offer price"
break
}
failureReason += " code: \(skError.code.rawValue)"
}
else if let isCancelledError = transaction.error?.isCancelledError, isCancelledError == true {
failureReason = "isCancelledError"
}
else {
failureReason = "\(transaction.error.debugDescription)"
}
SKPaymentQueue.default().finishTransaction(transaction)
errorBlock?(failureReason)
self.clearHandlers()
}
private func deliverPurchaseNotificationFor(identifier: String?) {
guard let identifier = identifier else { return }
fetchReceipt(productId: identifier)
}
}
答案 0 :(得分：0)
我遇到了同样的问题，我收到错误代码0或错误代码2（即使购买成功，通常也会触发错误代码2），并一直与Apple的开发人员技术支持来回发送电子邮件。在过去的几个月里。
这似乎是一个已知问题，当前在某些使用Apple的应用程序中会发生，在您的情况下，最好的做法是直接向Apple提出代码支持支持的技术支持事件（TSI）。
或者，您也可以使用反馈助手来提出错误报告。
不幸的是，这似乎是在Store Kit / App Store方面引起的，需要Apple逐一检查确实发生的情况。