update： 添加支付回调

Runtime/Code/Core/GuruSDK.Callback.cs

@@ -140,6 +140,13 @@ namespace Guru
                     add => _onPurchaseStart += value;
                     remove => _onPurchaseStart -= value;
                 }
+                
+                internal static Action<string, string> _onPurchaseFailed;
+                public static event Action<string, string> OnPurchaseFailed
+                {
+                    add => _onPurchaseFailed += value;
+                    remove => _onPurchaseFailed -= value;
+                }
 
             }
 

Runtime/Code/Core/GuruSDK.IAP.cs

@@ -4,10 +4,21 @@ namespace Guru
     using System;
     using System.Linq;
     
-    
     public partial class GuruSDK
     {
         public static bool IsIAPReady = false;
+
+        //---------- 支付失败原因 ----------
+        public const string BuyFail_PurchasingUnavailable = "PurchasingUnavailable";
+        public const string BuyFail_Pending = "ExistingPurchasePending";
+        public const string BuyFail_ProductUnavailable = "ProductUnavailable";
+        public const string BuyFail_SignatureInvalid = "SignatureInvalid";
+        public const string BuyFail_UserCancelled = "UserCancelled";
+        public const string BuyFail_PaymentDeclined = "PaymentDeclined";
+        public const string BuyFail_DuplicateTransaction = "DuplicateTransaction";
+        public const string BuyFail_Unknown = "Unknown";
+        
+        
         
         /// <summary>
         /// 初始化IAP 功能
@@ -18,6 +29,7 @@ namespace Guru
             GuruIAP.Instance.OnRestored += OnRestored;
             GuruIAP.Instance.OnBuyStart += OnBuyStart;
             GuruIAP.Instance.OnBuyEnd += OnBuyEnd;
+            GuruIAP.Instance.OnBuyFailed += OnBuyFailed;
             
             GuruIAP.Instance.InitWithKeys(googleKey, appleRootCerts, IsDebugMode);
         }
@@ -58,12 +70,22 @@ namespace Guru
             return null;
         }
         
+        public static ProductSetting GetProductSetting(string productName)
+        {
+            var products = GuruSettings.Instance.Products;
+            if (products != null && products.Length > 0)
+            {
+                return products.FirstOrDefault(p => p.ProductName == productName);   
+            }
+            return null;
+        }
+        
         private static Action<string, bool> _onPurchaseCallback;
         
         /// <summary>
         /// 购买商品, 通过商品Name
         /// </summary>
-        /// <param name="productId"></param>
+        /// <param name="productName"></param>
         /// <param name="purchaseCallback"></param>
         public static void Purchase(string productName, Action<string, bool> purchaseCallback = null)
         {
@@ -97,15 +119,28 @@ namespace Guru
         /// </summary>
         /// <param name="productId"></param>
         /// <param name="success"></param>
-        private static void OnBuyEnd(string productId, bool success)
+        private static void OnBuyEnd(string productName, bool success)
         {
-            _onPurchaseCallback?.Invoke(productId, success);
+            _onPurchaseCallback?.Invoke(productName, success);
         }
 
-
-        private static void OnBuyStart(string productId)
+        /// <summary>
+        /// 支付开始
+        /// </summary>
+        /// <param name="productName"></param>
+        private static void OnBuyStart(string productName)
         {
-            Callbacks.IAP._onPurchaseStart?.Invoke(productId);
+            Callbacks.IAP._onPurchaseStart?.Invoke(productName);
+        }
+        
+        /// <summary>
+        /// 支付失败
+        /// </summary>
+        /// <param name="productName"></param>
+        /// <param name="reason"></param>
+        private static void OnBuyFailed(string productName, string reason)
+        {
+            Callbacks.IAP._onPurchaseFailed?.Invoke(productName, reason);
         }
 
         #endregion