unity自定义TextMeshPro编辑界面报错

Question

问题遇到的现象和发生背景

我想修改TextMeshPro的Inspector界面，在Editor目录下创建了类TMP_CustomEditorPanel

问题相关代码，请勿粘贴截图

namespace TMPro.EditorUtilities
{
    [CustomEditor(typeof(TextMeshProUGUI), true), CanEditMultipleObjects]
    public class TMP_CustomEditorPanel : TMP_EditorPanel
    {
        public override void OnInspectorGUI()
        {
            if (GUILayout.Button("测试"))
            { 
                Debug.LogError("12152");
            }
        
            base.OnInspectorGUI();
        }

        protected override void DrawExtraSettings()
        {
            base.DrawExtraSettings();
        }

        protected override bool IsMixSelectionTypes()
        {
            return base.IsMixSelectionTypes();
        }

        protected override void OnUndoRedo()
        {
            base.OnUndoRedo();
        }
    }
}

运行结果及报错内容

每次点击文本就会报错
ArgumentException: Object at index 0 is null
UnityEditor.SerializedObject..ctor (UnityEngine.Object[] objs) (at C:/git/unity2021/Editor/Mono/SerializedObject.bindings.cs:33)
TMPro.EditorUtilities.TMP_EditorPanel.OnEnable () (at Library/PackageCache/com.unity.textmeshpro@3.0.6/Scripts/Editor/TMP_EditorPanel.cs:53)

Answer 1

继承TMP_EditorPanelUI这个