Equivalent of OpenFilePanel without using UnityEditor?

Questions & Answers
1

I used OpenFilePanel to allow players to select text files they have created and make levels from that, but have since discovered the issue with using this. See my code below:

if (GUI.Button(new Rect(210, 260, 100, 40), "Select file")) {
	filePath = EditorUtility.OpenFilePanel("level",Application.streamingAssetsPath,"txt");
	if(filePath.Length != 0) {
		selectedFile = true;
	}
}

As you can see I simply let users select a file from the Panel which pops up, and then save that path which is used later to create the level accordingly, and it works fine, but using UnityEditor I can’t compile this. Is there an alternative which does the same?

5

You can use this simple native file wrapper standalone builds;

6

Download and import this Unity Asset Store: Runtime File Browser | GUI Tools | Unity Asset Store

This plugin is for Mac, Windows and Android

4

you cant use it in a build

in the editor it work but it cant get in a build.
you may need to make your own custom file selector/explorer

also, if you want to build without removing code everytime
do it like how i did

#if UNITY_EDITOR
using UnityEditor;

#endif
//only in editor
	#if UNITY_EDITOR
	//prevent multiple dialogs
	public bool dialogIsOpen = false;

	protected virtual void Update()
	{
		if(rend == null)
		{
			rend = GetComponent<Renderer>();
		}
		//make sure to only show dialog in editor mode while not playing
		if(!EditorApplication.isPlayingOrWillChangePlaymode && !EditorApplication.isCompiling && !EditorApplication.isPaused)
		{
			//get the colliders
			MeshCollider box = GetComponent<MeshCollider>();
			BoxCollider poly = GetComponent<BoxCollider>();
			//if no dialogs && no collider && currently a sprite
			if(!dialogIsOpen && box == null && poly == null && rend.material.mainTexture.name != null)
			{
				setCollider();
			}

		}
	}
	//show a dialog ans ask the user wich collider to use
	private void setCollider()
	{
		dialogIsOpen = true;
		//destroy current collider
		DestroyImmediate(GetComponent<MeshCollider>());
		DestroyImmediate(GetComponent<BoxCollider>());
		//show dialog box
		if(UnityEditor.EditorUtility.DisplayDialog("Choose a Component", "You need one of the two component for your button to work","MeshCollider", "BoxCollider"))
		{
			gameObject.AddComponent<MeshCollider>();
		}
		else
		{
			gameObject.AddComponent<BoxCollider>();
		}
		dialogIsOpen = false;
	}

	#endif

i used it with [ExecuteInEditMode] to make some kind of conditionnal [RequireComponent] to make sure the game designer dont forget some component or to prevent to duplicate prefabs with just a different collider

2

It’s quite a bit more difficult than doing it in the editor, and sort of ugly, but I did it starting from this thing:
http://wiki.unity3d.com/index.php?title=ImprovedFileBrowser

3

I was finding difficulty to do it using OpenFilePanel for my simple requirement of opening some files. So, I did a bit of lateral thinking to do it this way.

Create a Panel and a Dropdown with any name. I have named the dropdown as “File Selection”. Please see the image attached.

Wrote a small code to load all the files from “Application.persistentDataPath”.

using UnityEngine;
using UnityEngine.UI;
using System.IO;

public class BehaviorScript : MonoBehaviour
{
    // Use this for initialization
    void Start ()
    {
        DirectoryInfo directoryInfo = new DirectoryInfo (Application.persistentDataPath);
        FileInfo[] fileInfo = directoryInfo.GetFiles ("*.*", SearchOption.AllDirectories);
        GameObject.Find ("File Selection").GetComponent<Dropdown> ().options.Clear ();
        foreach (FileInfo file in fileInfo) {
            Dropdown.OptionData optionData = new Dropdown.OptionData (file.Name);
            GameObject.Find ("File Selection").GetComponent<Dropdown> ().options.Add (optionData);
            GameObject.Find ("File Selection").GetComponent<Dropdown> ().value = 1;
        }
    }
}