[unity Editor Extension practice], find all prefabrications through code

stay Unity Editor extensions in , Usually, I will add, delete, modify and check files , Here are two Unity Find prefabricated methods in , The same goes for other documents .

1、 utilize AssetDatabase Find prefabrication ：

adopt AssetDatabase Of FindAssets Method can find all the files guid, Parameters filter Is a filter character . Namely Unity in Project The two buttons on the right side of the search bar under the window pop up ,t The sign is Type,l The sign is lable.（ Such as "Prefab t:Prefab" Is the name with Prefab Prefabrication of , This parameter is the same as here ）

Parameters searchInFolders Is the relative path of the folder （ No path is in the project Assets The lookup ）.

then   use GUIDToAssetPath Find the prefabricated path , Reuse LoadAssetAtPath Load as GameObject.

  public static List<GameObject> GetAllPrefabByAssetDatabase(params string[] path)
    {
        List<GameObject> _prefabList = new List<GameObject>();
        string[] _guids = AssetDatabase.FindAssets("t:Prefab", path);
        string _prefabPath = "";
        GameObject _prefab;
        foreach (var _guid in _guids)
        {
            _prefabPath = AssetDatabase.GUIDToAssetPath(_guid);
            _prefab = AssetDatabase.LoadAssetAtPath(_prefabPath, typeof(GameObject)) as GameObject;
            _prefabList.Add(_prefab);
        }
        return _prefabList;
    }

2、 utilize Directory Find files ：

Directory and AssetDatabase Empathy , It is only used here Directory Of GetFiles Method to find the prefabrication path ,

path： Relative paths ,

searchPattern：？ matching 0 Or a character ,* matching 0 Live multiple characters .

  public static List<GameObject> GetAllPrefabByDirectory(string path)
    { 
        string[] files = Directory.GetFiles(path, "*.prefab", SearchOption.AllDirectories);
        List<GameObject> _prefabList = new List<GameObject>();
        GameObject _prefab;
        foreach (var _path in files)
        {
            _prefab = AssetDatabase.LoadAssetAtPath(_path, typeof(GameObject)) as GameObject;
            _prefabList.Add(_prefab);
        }
        return _prefabList;
    }

Expand small knowledge ：

Generally, the prefabrication obtained by these two methods is the same , But there is one case where there is a difference . stay Unity Of Assets Next create a folder , When naming, enter two points in front of the file name , Such as ：..Prefab. You'll find out Unity Of Project Next , You will not see this folder and the files in it . In this case, if Directory.GetFiles Will get the path of the file , But use  AssetDatabase.LoadAssetAtPath It cannot be loaded when loading .

All the prefabrications are found here , The same goes for other resources .