Fix： 修复中台数据存储的 BUG。 调整写入策略

Runtime/Code/Model/GuruSDKModel.cs

@@ -35,7 +35,8 @@ namespace Guru
     {
         private const float SaveInterval = 3;
         private const string SaveKey = "com.guru.sdk.model.save";
-        private float _lastSavedTime = 0;
+        private DateTime _lastSavedTime = new DateTime(1970,1,1);
+        
         private bool _noAds = false;
         private readonly BindableProperty<int> _bLevel;
         private readonly BindableProperty<int> _bPlay;
@@ -55,8 +56,8 @@ namespace Guru
 
         public GuruSDKModel()
         {
+            // 读取内存值
             GuruSDKSerializedModel model = LoadModel();
-            
             _uid = model.uid;
             _noAds = model.no_ads;
             _bLevel = new BindableProperty<int>(model.b_level);
@@ -64,6 +65,7 @@ namespace Guru
             _purchased = model.purchased;
         }
 
+
         public int BLevel
         {
             get => _bLevel.Value;
@@ -150,9 +152,10 @@ namespace Guru
         }
         
         /// <summary>
-        /// 保存至数据
+        /// 保存至 PlayerPrefs 数据
         /// </summary>
-        private void SaveToPlayerPrefs()
+        /// <param name="writeToDisk"></param>
+        private void SaveToPlayerPrefs(bool writeToDisk = false)
         {
             var model = new GuruSDKSerializedModel()
             {
@@ -164,21 +167,29 @@ namespace Guru
             };
             
             var json = JsonUtility.ToJson(model);
+            if (!string.IsNullOrEmpty(json))
+            {
                 PlayerPrefs.SetString(SaveKey, json);
             }
             
+            if(writeToDisk) 
+            {
+                PlayerPrefs.Save(); // 写入到磁盘
+            }
+        }
+        
         /// <summary>
         /// 保存数据
         /// </summary>
-        /// <param name="force"></param>
-        public void Save(bool force = false)
+        /// <param name="forceSave"></param>
+        public void Save(bool forceSave = false)
         {
-            bool save = force || (Time.realtimeSinceStartup - _lastSavedTime>= SaveInterval);
-            if (save)
+            bool writeToDisk = forceSave || (DateTime.Now - _lastSavedTime)>= TimeSpan.FromSeconds(SaveInterval);
+            if (writeToDisk)
             {
-                _lastSavedTime = Time.realtimeSinceStartup;
-                SaveToPlayerPrefs();
+                _lastSavedTime = DateTime.Now; // 超过间隔需要强制写入
             }
+            SaveToPlayerPrefs(writeToDisk); // 每次保存都要设置到 PlayerPrefs 内
         }
         
         #endregion