How can I make the X button in the Cardboard XDK exit VR mode?

Question

When I build a game using Unity 2017.2.0f3 and the Cardboard SDK (using XR settings) and run it on my device, I see two controls overlaid on the screen, a cross and a gear:

Currently, pressing the cross control does nothing. I'd like to make the cross exit VR mode when pressed.

Answer 1

When clicking ✕ (close), your Unity app should get an escape key press notification & you should be able to handle it the same way as an actual key down event. For example, to quit, you would do this:

void Update(){
  if(Input.GetKeyDown(KeyCode.Escape)){
    // close icon pressed, place appropriate code here
    Application.Quit();
  }
}

There was an error that prevented this; make sure Unity & your various SDKs are patched & up to date.

Answer 2

It looks like a simple UI. I suppose you need to find right Canvas in the Unity3d Editor window and add OnClickEvent to these elements (cross and settings icons). If cross is containing button component you will simply need to add OnClickEvent that will escape VR mode.

Answer 3

Here i am writing my solution

using UnityEngine;
using Google.XR.Cardboard;
using UnityEngine.XR.Management;
using System.Threading.Tasks;
public class UISettingsVR : MonoBehaviour
{
void Start()
{
}
/// <summary>
/// Gets a value indicating whether the VR mode is enabled.
/// </summary>
private bool _isVrModeEnabled
{
    get
    {
        return 
        XRGeneralSettings.Instance.Manager.isInitializationComplete;
    }
}


/// <summary>
/// Update is called once per frame.
/// </summary>
public void Update()
{

    if (XRGeneralSettings.Instance == null ||
        XRGeneralSettings.Instance.Manager == null)
        return;

    if (_isVrModeEnabled)
    {
        if (Api.IsCloseButtonPressed)
        {
            ActivateTwoD();
       //Do YOUR STUFF

            
        }

        if (Api.IsGearButtonPressed)
        {
            Api.ScanDeviceParams();
        }

        Api.UpdateScreenParams();
    }
}

public void ActivateVR() 
{
}

public  void ActivateTwoD()
{
}
}