Recursive search project folder hierarchy?

Questions & Answers
1

I want to instantiate a prefab from a particular project folder with subfolders. Is it possible to do a recursive search so that it checks the parent folder and any child folders? Trying to find something in the API that will give me access to the folder structure.

2

I know this is over a year old question, but thought I’d answer for archive sake.

You could use Directory.GetFiles() with the SearchOption.AllDirectories and have it return a list of all files with filter. Here’s a snip I used for finding all audio files I wanted that existed in Resources:

// imports...(I hate it when people don't post imports)
using UnityEngine;
using UnityEditor;
using UnityEditorInternal;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using UnityEngine.Audio;

// ... later in code
protected List<string> GetFiles()
	{
		List<string> fileList = new List<string>();

		try
		{
			string path = Application.dataPath;

			IEnumerable<string> files = Directory.GetFiles(path + "/Resources", "*.*", SearchOption.AllDirectories)
				.Where(s => s.EndsWith(".mp3") || s.EndsWith(".wav") || s.EndsWith(".aif") || s.EndsWith(".ogg"));

			foreach (string f in files)
			{
				fileList.Add(f);
			}


			return fileList;
		}
		catch (UnauthorizedAccessException UAEx)
		{
			Console.WriteLine(UAEx.Message);
		}
		catch (PathTooLongException PathEx)
		{
			Console.WriteLine(PathEx.Message);
		}

		return null;
	}

Hope that helps,

John