Unity异步加载场景进度条显示

 捕鱼项目中的

public class LoadGame : MonoBehaviour 
{

    public Slider processView;

	// Use this for initialization
	void Start () {
        LoadGameMethod();
        
	}
	
	// Update is called once per frame
	void Update () {
		

    }
    public void LoadGameMethod()
    {
        StartCoroutine(StartLoading_4(2));
    }

    private IEnumerator StartLoading_4(int scene)
    {
        int displayProgress = 0;
        int toProgress = 0;
        AsyncOperation op = SceneManager.LoadSceneAsync(scene); 
        //设置成true进度条，走到0.9,加载完不能自动跳到场景
        op.allowSceneActivation = false;
        while (op.progress < 0.9f)
        {
            toProgress = (int)op.progress * 100;
            while (displayProgress < toProgress)
            {
                ++displayProgress;
                SetLoadingPercentage(displayProgress);
                //所有的渲染完成再走下一帧
                yield return new WaitForEndOfFrame();
            }
        }

        toProgress = 100;
        while (displayProgress < toProgress)
        {
            ++displayProgress;
            SetLoadingPercentage(displayProgress);
            yield return new WaitForEndOfFrame();
        }
        //后边百分之10的进度非常快，直接设置为true
        op.allowSceneActivation = true;
    }

    private void SetLoadingPercentage(float v)
    {
        processView.value = v / 100;
    }
}