unity AsyncOperation进度保持为0

Question

这是我的代码，用于2017年unity的加载屏幕，并且它不起作用，操作进度保持为0：（

using System.Collections;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class LevelLoader : MonoBehaviour {
    public GameObject loadingScreen;
    public Slider slider;

    public void LoadLevel (string sceneIndex)
    {
        StartCoroutine (LoadAsynchronously(sceneIndex));
    }

    IEnumerator LoadAsynchronously (string sceneIndex)
    {
        AsyncOperation operation = SceneManager.LoadSceneAsync (sceneIndex);
        loadingScreen.SetActive (true);
        while (!operation.isDone) {
            float progress = Mathf.Clamp01 (operation.progress / 0.9f);
            Debug.Log (operation.progress);
            slider.value = progress;
            yield return null;
        }

    }
}

Answer 1

这些行在我以前的项目中工作正常，您可以尝试。

IEnumerator LoadScene()
{
    yield return null;
    AsyncOperation asyncOperation = SceneManager.LoadSceneAsync(SceneName);
    asyncOperation.allowSceneActivation = false;
    while (!asyncOperation.isDone)
    {
        //Output the current progress
        Text_Progress.text = "Loading progress: " + (asyncOperation.progress * 100) + "%";
        // Check if the load has finished
        if (asyncOperation.progress >= 0.9f)
        {
            asyncOperation.allowSceneActivation = true;
        }

        yield return null;
    }
}

Answer 2

对不起，我有2个脚本来控制场景负载，是的，起初它不起作用，所以我删除了另一个脚本并正常工作了