class UIPanelTypeJson
    {
        public List<UIPanelInfo> List;
    }


    void UIPAnalysis()//构造一个UIPanel的解析方法
    {

        panelTypepath = new Dictionary<UIPanelType, string>();
       TextAsset ta=Resources.Load<TextAsset>("UIPanelTyep");
       UIPanelTypeJson gameObjectInfo= JsonUtility.FromJson<UIPanelTypeJson>(ta.text);//运行程序报这个为永远为空
        foreach (UIPanelInfo info in gameObjectInfo.List)
        {
            panelTypepath.Add(info.panelTyep, info.path);
        }

    }

运行前Unity警告内部类UIPanelTyepJson中定义的List为空

运行后报JsonUtility.FromJson解析方法得到的为空

UIPanelInfo代码如下：

 [NonSerialized]
    public UIPanelType panelTyep;//枚举类型
    public string panelstring;
    public string path;//字符串类型

    public void OnAfterDeserialize()
    {
        Debug.Log(panelstring);
        UIPanelType type = (UIPanelType)System.Enum.Parse(typeof(UIPanelType), panelstring);
        panelTyep = type;
    }

    public void OnBeforeSerialize()
    {
        throw new NotImplementedException();
    }

Json代码

{
  "List": [
    {
      "panelstring": "Bag",
      "path": "UIPanel/BagPanel"
    },

    {
      "panelstring": "System",
      "path": "UIPanel/SystemPanel"
    },
    {
      "panelstring": "Shop",
      "path": "UIPanel/ShopPanel"
    },
    {
      "panelstring": "Sikll",
      "path": "UIPanel/SikllPanel"
    },
    {
      "panelstring": "Task",
      "path": "UIPanel/TaskPanel"
    },
    {
      "panelstring": "MainMeun",
      "path": "UIPanel/MainMeunPanel"
    }



  ]
}