Question

此代码由代理调用：

private void OnMsgBoxClick(object arg)
{
    if (arg.GetType() == typeof(int))
    {
        this.LogWarning("OnMsgBoxClick() arg: {0}", arg.ToString());
    }
}

它给出了NullReferenceException，但是像这样仍然调试了这句话：

NullReferenceException: Object reference not set to an instance of an object
> 21:29:11.777 Example_MsgBox::Invoke() OnMsgBoxClick() arg: 0

，并且我想获得没有错误的调试器。我该如何处理这个问题？

Debuger Screenshot

这是我的错误调用堆栈。

NullReferenceException: Object reference not set to an instance of an object
Example_MsgBox.OnMsgBoxClick (System.Object arg) (at Assets/GamePlay/Example/Example_MsgBox.cs:28)
GamePlay.UI.UIAPI+<ShowMsgBox>c__AnonStorey0.<>m__0 (System.Object closeArg) (at Assets/GamePlay/UI/UIAPI.cs:32)
SGF.UI.FrameWork.UIWindow.OnDisable () (at Assets/SGF/UI/FrameWork/UIWindow.cs:73)
UnityEngine.GameObject:SetActive(Boolean)
SGF.UI.FrameWork.UIWindow:Close(Object) (at Assets/SGF/UI/FrameWork/UIWindow.cs:119)
GamePlay.UI.Common.UIMsgBox:OnBtnClick(Int32) (at Assets/GamePlay/UI/Common/UIMsgBox.cs:62)
UnityEngine.EventSystems.EventSystem:Update()

这是'UIMsgBox'：

    public void OnBtnClick(int btnIndex)
    {
        if (btnIndex.GetType() == typeof(int))
        {
            this.Close(btnIndex);
        }
    }

这是'UIWindow'：

    public delegate void CloseEvent(object arg = null);
    public event CloseEvent OnCloseEvent;
    public sealed override void Close(object arg = null)
    {
        this.Log("Close() arg:{0}", arg);
        if (this.gameObject.activeSelf)
        {
            this.gameObject.SetActive(false);
        }
        OnClose(arg);
        if (OnCloseEvent != null)
        {
            OnCloseEvent(arg);
            OnCloseEvent = null;
        }
    }

对不起，我认为它太长了。

谢谢！

Answer 1

添加此支票。

llvm-dis

代理中的Unity arg NullReference

1 个答案: