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标题: 读取StreamingAssets文件夹里面所有的图片 [打印本页]

作者: 烟雨 时间: 2015-11-12 05:08
标题: 读取StreamingAssets文件夹里面所有的图片

图片应放在unity工程下的 StreamingAssets文件夹下
public UITexture uit;
void LoadPicturesOfStreamingAsset()
{
      StartCoroutine(LoadWWWAllPicture());
}

List<Texture> ww = new List<Texture>();
IEnumerator LoadWWWAllPicture()
{
      string streamingPath = Application.streamingAssetsPath;
      DirectoryInfo dir = new DirectoryInfo(streamingPath);//初始化一个DirectoryInfo类的对象
      GetAllFiles(dir);
      double startTime = (double)Time.time;
      foreach (DictionaryEntry de in ht)
      {
         WWW www = new WWW("file://" + streamingPath + "/" + de.Key);
         yield return www;
         if (www != null)
         {
            ww.Add(www.texture);
            startTime = (double)Time.time - startTime;
         }
         if (www.isDone)
         {
            www.Dispose();
         }
      }

      uit.mainTexture = ww[5];
      uit.MakePixelPerfect();
      Debug.Log("WWW use time: " + startTime + " pictures count: " + ww.Count);
}

Hashtable ht = new Hashtable();
public void GetAllFiles(DirectoryInfo dir)
{
      FileSystemInfo[] fileinfo = dir.GetFileSystemInfos(); //初始化一个FileSystemInfo类型的实例
      foreach (FileSystemInfo i in fileinfo)             //循环遍历fileinfo下的所有内容
      {
         if (i is DirectoryInfo)          //当在DirectoryInfo中存在i时
         {
            GetAllFiles((DirectoryInfo)i);  //获取i下的所有文件
         }
         else
         {
            string str = i.FullName;       //记录i的绝对路径
            string path = Application.streamingAssetsPath;
            string strType= str.Substring(path.Length);
            if (strType.Substring(strType.Length - 3).ToLower() == "png")
            {
                  if (ht.Contains(strType))
                  {
                     ht[strType] = strType;
                  }
                  else
                  {
                     ht.Add(strType, strType);
                  }

            }
         }
      }
}

使用方法：调用LoadPicturesOfStreamingAsset()；

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