【Unity】unity5.3新API使用进度条,异步加载场景的代码

using UnityEngine;  
using System.Collections;  
using UnityEngine.UI;  
using UnityEngine.SceneManagement;  
public class LoadingScene : MonoBehaviour {  
    public Slider processBar;  
  
    private AsyncOperation async;  
  
    private int nowProcess;  
  
    void Start()  
    {  
        StartCoroutine(loadScene());  
    }  
    /// 
  
    /// 加载完场景后就会跳转  
    /// 
  
    ///   
    IEnumerator loadScene()  
    {  
        async = SceneManager.LoadSceneAsync("sceneName");  
        async.allowSceneActivation = false;  
        yield return async;  
    }  
  
    void Update()  
    {  
        if(async == null)  
        {  
            return;  
        }  
  
        int toProcess;  
        // async.progress 你正在读取的场景的进度值  0---0.9    
        // 如果当前的进度小于0.9，说明它还没有加载完成，就说明进度条还需要移动    
        // 如果，场景的数据加载完毕，async.progress 的值就会等于0.9  
        if(async.progress < 0.9f)  
        {  
            toProcess = (int)async.progress * 100;  
        }  
        else  
        {  
            toProcess = 100;  
        }  
        // 如果滑动条的当前进度，小于，当前加载场景的方法返回的进度   
        if(nowProcess < toProcess)  
        {  
            nowProcess++;  
        }  
  
        processBar.value = nowProcess / 100f;  
        // 设置为true的时候，如果场景数据加载完毕，就可以自动跳转场景   
        if(nowProcess == 100)  
        {  
            async.allowSceneActivation = true;  
        }  
    }  
}  

来自http://blog.csdn.net/qq_28221881/article/details/53674445#comments