Unity 异步加载场景

using UnityEngine;
using System.Collections;

public class LoadSceneB : MonoBehaviour {


    public UISlider slider;         //进度条

    void Start () {
        LoadGame();
    }
    
    public void LoadGame() {
        StartCoroutine(StartLoading("C"));
    }

    public IEnumerator StartLoading(string sceneName) 
    {
        AsyncOperation op = Application.LoadLevelAsync(sceneName);
        op.allowSceneActivation = false;


        /* 实际根据场景加载的进度,来显示进度
        while(op.progress < 0.9f)
        {
            slider.value = op.progress;             //实际加载场景的进度值显示在Slider里面
            yield return new  WaitForEndOfFrame();
        }*/


        //由于C场景只有一张图加载太快了,以下代码就模拟下加载
        for (int i = 0; i < 100; i++)
        {
            slider.value = i / 100f;
            yield return new WaitForSeconds(0.01f);
        }

        slider.value = 1;
        yield return new WaitForEndOfFrame();
        op.allowSceneActivation = true;   

    }

}