This script is for vuforia to set the vuforia api key.

ARKeySetter Intro.md

If you want to set the key, but not want to share the key to the public, you need this.

1. put it on ARCamera, and give it the first priority in components
2. put your key as apiKey.txt file in Builds folder

ARKeySetter.cs

using UnityEngine;
using System.Collections;
using Vuforia;
using System.IO;

public class ARKeySetter : MonoBehaviour {

	// Use this for initialization
	void Awake(){

		#if UNITY_EDITOR

		Debug.Log("start to read and set key");

		string apiKey = ReadKey();
		GetComponent<VuforiaBehaviour> ().SetAppLicenseKey (apiKey);

		#endif
	}


	string ReadKey(){
		string keyLocation="Builds/apiKey.txt";

		if (File.Exists (keyLocation)) {

			Debug.Log ("there is a file");


			return File.ReadAllText (keyLocation);

		} else {


			Debug.LogError("Apply key on developer.vuforia.com, " +
				"and creat a apiKey.txt in Builds folder, and paste it to the txt file");


		}

		return null;

	}

}