Unity C# Loading screen

Unity C# Loading Screen

public GameObject loadingScreen;
	public Slider slider;
	public Text progressText;

	public void LoadScene(int sceneIndex){
		
		loadingScreen.SetActive (true);
		StartCoroutine (LoadAsync (sceneIndex));

	}

	IEnumerator LoadAsync(int sceneIndex){
	
		AsyncOperation asyncOperation = SceneManager.LoadSceneAsync (sceneIndex);

		while (!asyncOperation.isDone) {

			float progress = Mathf.Clamp01 (asyncOperation.progress / .9f);

		//	loadingScreen.SetActive (true);

			slider.value = progress;

			progressText.text = (progress * 100).ToString("F0") + "%";

			yield return null;


		}
	
	
	}