HideFlags在Unity中的应用

HideFlags的作用（来自UnityEngine官方注释）：

public enum HideFlags
    {
        //
        // Summary:
        //     A normal, visible object. This is the default.
        None = 0x0,
        //
        // Summary:
        //     The object will not appear in the hierarchy.
        HideInHierarchy = 0x1,
        //
        // Summary:
        //     It is not possible to view it in the inspector.
        HideInInspector = 0x2,
        //
        // Summary:
        //     The object will not be saved to the scene in the editor.
        DontSaveInEditor = 0x4,
        //
        // Summary:
        //     The object is not be editable in the inspector.
        NotEditable = 0x8,
        //
        // Summary:
        //     The object will not be saved when building a player.
        DontSaveInBuild = 0x10,
        //
        // Summary:
        //     The object will not be unloaded by Resources.UnloadUnusedAssets.
        DontUnloadUnusedAsset = 0x20,
        //
        // Summary:
        //     The object will not be saved to the scene. It will not be destroyed when a new
        //     scene is loaded. It is a shortcut for HideFlags.DontSaveInBuild | HideFlags.DontSaveInEditor
        //     | HideFlags.DontUnloadUnusedAsset.
        DontSave = 0x34,
        //
        // Summary:
        //     A combination of not shown in the hierarchy, not saved to to scenes and not unloaded
        //     by The object will not be unloaded by Resources.UnloadUnusedAssets.
        HideAndDontSave = 0x3D
    }

可用于在Hierarchy和右键菜单中修改物体HideFlags的编辑器脚本：

using UnityEngine;
using UnityEditor;

public class HierarchyExtension{
    [InitializeOnLoadMethod]
    static void InitializeOnEnterPlayMode()
    {
        EditorApplication.hierarchyWindowItemOnGUI = delegate (int instanceID, Rect selectionRect)
        {

            if (Selection.activeGameObject && instanceID == Selection.activeGameObject.GetInstanceID())
            {
                currentSelectedObject = Selection.activeGameObject;
                float width = 60f;
                float height = 20f;
                selectionRect.x += (selectionRect.width - width);
                selectionRect.width = width;
                selectionRect.height = height;

                string buttonString = Selection.activeGameObject.hideFlags.ToString();
                if (GUI.Button(selectionRect, buttonString))
                {
                    HideFlags hideFlags = Selection.activeGameObject.hideFlags == HideFlags.None ? HideFlags.NotEditable : HideFlags.None;
                    Selection.activeGameObject.hideFlags = hideFlags;
                    Debug.LogFormat("Set HideFlags: {0}, GameObject: {1}", hideFlags, Selection.activeGameObject.name);
                }
            }
        };
    }
    static GameObject currentSelectedObject { get; set; }


    [MenuItem("GameObject/Hide Flags/None", false, 0)]
    public static void SetHideFlagsNone()
    {
        if (currentSelectedObject)
        {
            currentSelectedObject.hideFlags = HideFlags.None;
            Debug.LogFormat("Set HideFlags: None, GameObject: {0}", currentSelectedObject.name);
        }
        else
        {
            Debug.Log("Set HideFlags: NULL, GameObject: NULL, No selected gameobject!");
        }
    }

    [MenuItem("GameObject/Hide Flags/Not Editable", false, 1)]
    public static void SetHideFlagsNotEditable()
    {
        if (currentSelectedObject)
        {
            currentSelectedObject.hideFlags = HideFlags.NotEditable;
            Debug.LogFormat("Set HideFlags: NotEditable, GameObject: {0}", currentSelectedObject.name);
        }
        else
        {
            Debug.Log("Set HideFlags: NULL, GameObject: NULL, No selected gameobject!");
        }
    }

    [MenuItem("GameObject/Hide Flags/Hide In Inspector", false, 2)]
    public static void SetHideFlagsDontSaveInEditor()
    {
        if (currentSelectedObject)
        {
            currentSelectedObject.hideFlags = HideFlags.HideInInspector;
            Debug.LogFormat("Set HideFlags: HideInInspector , GameObject: {0}", currentSelectedObject.name);
        }
        else
        {
            Debug.Log("Set HideFlags: NULL, GameObject: NULL, No selected gameobject!");
        }
    }
}

Unity版本：2017.4.27f1

参考资料

Unity - Scripting API: HideFlags