UNITY3D判断资源是否是文件夹

判断当前选中资源是否是文件夹

/// <summary>
/// Retrieves selected folder on Project view.
/// </summary>
/// <returns></returns>
public static string GetSelectedPathOrFallback()
{
    string path = "Assets";
  
    foreach (UnityEngine.Object obj in Selection.GetFiltered(typeof(UnityEngine.Object), SelectionMode.Assets))
    {
        path = AssetDatabase.GetAssetPath(obj);
        if (!string.IsNullOrEmpty(path) && File.Exists(path))
        {
            path = Path.GetDirectoryName(path);
            break;
        }
    }
    return path;
}
  
/// <summary>
/// Recursively gather all files under the given path including all its subfolders.
/// </summary>
static IEnumerable<string> GetFiles(string path)
{
    Queue<string> queue = new Queue<string>();
    queue.Enqueue(path);
    while (queue.Count > 0)
    {
        path = queue.Dequeue();
        try
        {
            foreach (string subDir in Directory.GetDirectories(path))
            {
                queue.Enqueue(subDir);
            }
        }
        catch (System.Exception ex)
        {
            Debug.LogError(ex.Message);
        }
        string[] files = null;
        try
        {
            files = Directory.GetFiles(path);
        }
        catch (System.Exception ex)
        {
            Debug.LogError(ex.Message);
        }
        if (files != null)
        {
            for (int i = 0; i < files.Length; i++)
            {
                yield return files[i];
            }
        }
    }
}

// You can either filter files to get only neccessary files by its file extension using LINQ.
// It excludes .meta files from all the gathers file list.
var assetFiles = GetFiles(GetSelectedPathOrFallback()).Where(s => s.Contains(".meta") == false);
  
foreach (string f in assetFiles)
{
  Debug.Log("Files: " + f);
}

参考链接
How to get the current selected folder of "Project" Window🔗
get folder from selection array🔗