Project

1.EditorApplication.projectWindowItemOnGUI //绘制的回调

2.EditorApplication.RepaintProjectWindow(); // 更新Project窗口

3.EditorApplication.projectChanged //Project窗口变化回调(创建资源或对其进行重命名或重定父级，以及移动或重命名项目中的文件夹)

using UnityEngine;
using UnityEditor;
using System;

[InitializeOnLoad]
public class ProjectTest
{

    private static bool isEnable = false;

    [MenuItem("MyMenu/Project")]
    static void ActiveEnable()
    {
        if (isEnable)
        {
            isEnable = false;
            //取消注册
            EditorApplication.projectWindowItemOnGUI -= ProjectWindow;
            EditorApplication.projectChanged -= OnProjectChanged;
        }
        else
        {
            isEnable = true;
            //注册
            EditorApplication.projectWindowItemOnGUI += ProjectWindow;
            EditorApplication.projectChanged += OnProjectChanged;
        }
        
        Menu.SetChecked("MyMenu/Project", isEnable);
        //刷新
        EditorApplication.RepaintProjectWindow();
    }

    //渲染
    private static void ProjectWindow(string guid, Rect selectionRect)
    {
        string path = AssetDatabase.GUIDToAssetPath(guid);

        if (!string.IsNullOrEmpty(path))
        {
            EditorGUI.LabelField(new Rect(selectionRect.x + 100, selectionRect.y , selectionRect.width, selectionRect.height), path);
        }
    }

    //更新
    private static void OnProjectChanged()
    {
        Debug.Log("OnProjectChanged");
    }
 
    static ProjectTest()
    {
        Menu.SetChecked("MyMenu/Project", isEnable);
    }


    
}

ProjectWindowUtil

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