Billing.BillingService.PurchaseStateChanged C# (CSharp) Метод

        private void PurchaseStateChanged(int startId, string signedData, string signature)
        {
            List<Security.VerifiedPurchase> purchases;
            purchases = Security.VerifyPurchase(signedData, signature);
            if (purchases == null)
            {
                return;
            }

            List<string> notifyList = new List<string>();
            foreach (Security.VerifiedPurchase vp in purchases)
            {
                if (vp.notificationId != null)
                {
                    notifyList.Add(vp.notificationId);
                }
                ResponseHandler.PurchaseResponse(this, vp.purchaseState, vp.productId, vp.orderId, vp.purchaseTime, vp.developerPayload);
            }
            if (notifyList.Count > 0)
            {
                string[] notifyIds = notifyList.ToArray();
                ConfirmNotificationsMethod(startId, notifyIds);
            }
        }