unity AsyncOperation 进度保持为0

Question

这是我在 unity 2017 中加载屏幕的代码，idk y 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

这些线在我以前的项目中工作得很好，你可以试试。

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

好的，伙计们，我有 2 个脚本来控制场景负载，但是一开始它不起作用，现在我删除了另一个脚本并且它工作正常