处理恢复购买时如何处理旧交易？

Question

我目前正在使用沙盒用户开发和测试我的应用。即使事务已经完成，当我尝试Restore Purchases时，我从队列中获得了多达32个旧事务。

基本上我想在Your purchase is being restored. Upon completion this dialog will close.中提醒并在它完成时将其解雇。

private func showRestoreInProgressAlert() {
        let alert = UIAlertController(title: "Restoring Purchase", message: "Your purchase history is being restored. Upon completion this dialog will close.", preferredStyle: .alert)
        present(alert, animated: true, completion: nil)

        NotificationCenter.default.addObserver(self, selector: #selector(dismissRestoreInProgressAlert(notification:)), name: SubscriptionService.restoreSuccessfulNotification, object: nil)
    }

您可以从SKPaymentTransactionObserver识别以下方法。一旦发送通知.restoreSuccessfulNotification，警报将按预期被解除。但由于队列中有32个事务，弹出窗口不断出现并消失32次。

func handleRestoredState(for transaction: SKPaymentTransaction, in queue: SKPaymentQueue) {
        print("Purchase restored for product id: (transaction.payment.productIdentifier)")
        queue.finishTransaction(transaction)
        SubscriptionService.shared.uploadReceipt { (success) in
            DispatchQueue.main.async {
                NotificationCenter.default.post(name: SubscriptionService.restoreSuccessfulNotification, object: nil)
            }
        }
    }


func paymentQueue(_ queue: SKPaymentQueue,
                      updatedTransactions transactions: [SKPaymentTransaction]) {

        for transaction in transactions {
            switch transaction.transactionState {
            case .purchasing:
                handlePurchasingState(for: transaction, in: queue)
            case .purchased:
                handlePurchasedState(for: transaction, in: queue)
            case .restored:
                handleRestoredState(for: transaction, in: queue)
            case .failed:
                handleFailedState(for: transaction, in: queue)
            case .deferred:
                handleDeferredState(for: transaction, in: queue)
            }
        }
    }

我已经完成了handlePurchasedState和handleRestoredState的交易，如下所示：

queue.finishTransaction(transaction)

那么，为什么每当我点击恢复购买时，我仍然会在队列中放置这么多旧交易？

UPDATE

这可能确实是沙箱的问题。

我试图做一个计数，但这没有帮助，因为并非所有这些交易似乎都是可恢复的。

我做了“硬重置”：

for transaction: AnyObject in SKPaymentQueue.default().transactions {
            guard let currentTransaction: SKPaymentTransaction = transaction as? SKPaymentTransaction else {return}
            SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
        }

现在似乎交易缓慢减少到零，这意味着Sandbox正在失去它们。

为什么SKPaymentQueue.default().finishTransaction()工作，但queue.finishTransaction()没有？我应该重构我的代码以使用SKPaymentQueue.default().finishTransaction()而不是安全吗？或者这只是IAP沙箱的糟糕日子？

Answer 1

另一答案