LandslideEmergencyEvacuation/EmergencyEvacuation/Assets/XRControl.cs

using System.Collections;
using UnityEngine;
using UnityEngine.XR.Management;

public class XRControl : MonoBehaviour
{
    private XRManagerSettings xrManager;

    void Start()
    {
        xrManager = XRGeneralSettings.Instance.Manager;
        if (XRGeneralSettings.Instance.Manager.activeLoader == null) { StopXR(); }
    }

    public void StartXR()
    {
        StartCoroutine(StartXRLoader());
    }

    public void StopXR()
    {
        StartCoroutine(StopXRLoader());
    }

    private IEnumerator StartXRLoader()
    {
        if (!xrManager.isInitializationComplete)
        {
            xrManager.InitializeLoader();
            yield return new WaitUntil(() => xrManager.isInitializationComplete);
            xrManager.StartSubsystems();
        }
    }

    private IEnumerator StopXRLoader()
    {
        if (xrManager.isInitializationComplete)
        {
            xrManager.StopSubsystems();
            xrManager.DeinitializeLoader();
            yield return null;
        }
    }
}