Cardboard Mode Manager

CardboardModeMgr.cs

using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;
using System.Collections.Generic;
using UnityEngine.UI;

public class CardboardModeMgr : MonoBehaviour {
    
    // We need a reference to camera which 
    // is how we get to the cardboard components.
    public GameObject mainCamera;


    public void Start()
    {
        // Save a flag in the local player preferences to initialize VR mode
        // This way when the app is restarted, it is in the mode that was last used.
        int doVR = PlayerPrefs.GetInt("VREnabled");
        Cardboard.SDK.VRModeEnabled = doVR == 1;
        CardboardHead head = mainCamera.GetComponent<CardboardHead>();
        head.enabled  = Cardboard.SDK.VRModeEnabled;
        Cardboard.SDK.TapIsTrigger = true;
    }

   // The event handler to call to toggle Cardboard mode.
    public void ChangeCardboardMode ()
    {
        CardboardHead head = mainCamera.GetComponent<CardboardHead>();
        if (Cardboard.SDK.VRModeEnabled) {
            // disabling.  rotate back to the original rotation.
            head.transform.localRotation = Quaternion.identity;
        }
        Cardboard.SDK.VRModeEnabled = !Cardboard.SDK.VRModeEnabled;
        head.enabled  = Cardboard.SDK.VRModeEnabled;
        PlayerPrefs.SetInt("VREnabled", Cardboard.SDK.VRModeEnabled?1:0);
        PlayerPrefs.Save();        
    }
}