GHZMRNavigatorProXR/Assets/Scripts/Download/DownloadManager.cs

using LitJson;
using Newtonsoft.Json;
using SC.XR.Unity;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.UI;

public class DownloadManager : SingletonMono<DownloadManager>
{
    /// <summary>
    /// 图片集合
    /// </summary>
    private Dictionary<string, Texture2D> m_ImageDic;
    /// <summary>
    /// 等待下载
    /// </summary>
    private List<DownloadData> m_WaitDownload;
    private Dictionary<string, List<DownloadData>> m_WaitDownloadData;
    /// <summary>
    /// 正在下载中的数据
    /// </summary>
    private List<DownloadData> m_Downloading;
    /// <summary>
    /// 已下载完成的数据
    /// </summary>
    private List<DownloadData> m_Downloaded;
    /// <summary>
    /// 下载失败
    /// </summary>
    private List<DownloadData> m_FiledDownload;
    /// <summary>
    /// 本地已下载数据
    /// </summary>
    //private List<DownloadData> m_LocaData;
    private Dictionary<string, List<DownloadData>> m_LocaData;
    /// <summary>
    /// 本地数据记录表存储路径
    /// </summary>
    private string m_LocaConfigPath;
    /// <summary>
    /// 本地数据存储路径
    /// </summary>
    private string m_LocaDataPath;
    public string LocaDataPath
    {
        get { return m_LocaDataPath; }
        private set { m_LocaDataPath = value; }
    }


    private Dictionary<string, GameObject> m_AbObjs;

    public List<DownloadData> GetDownloaded()
    {
        return m_Downloaded;
    }

    private void Awake()
    {
        m_ImageDic = new Dictionary<string, Texture2D>();
        m_WaitDownload = new List<DownloadData>();
        m_WaitDownloadData = new Dictionary<string, List<DownloadData>>();
        m_Downloading = new List<DownloadData>();
        m_Downloaded = new List<DownloadData>();
        m_FiledDownload = new List<DownloadData>();
        m_LocaData = new Dictionary<string, List<DownloadData>>();
        m_AbObjs = new Dictionary<string, GameObject>();

        m_LocaConfigPath = FileManager.CalFilePath(Path.Combine(Application.persistentDataPath, "DataConfig.Json"));
        LocaDataPath = FileManager.CalFilePath(Application.persistentDataPath + "/MaterialData");
        if (!Directory.Exists(LocaDataPath))
        {
            Directory.CreateDirectory(LocaDataPath);
        }
        //Debug.Log(LocaDataPath);
        //Debug.Log(m_LocaConfigPath);

        ReadLocaData();
    }

    /// <summary>
    /// 读取本地数据
    /// </summary>
    private void ReadLocaData()
    {
        string str = FileManager.ReadFile(m_LocaConfigPath);
        foreach (JsonData item in JsonMapper.ToObject(str))
        {
            DownloadData data = new DownloadData(item);

            if (File.Exists(data.localSavePath))
            {
                if (!m_LocaData.ContainsKey(data.downloadPath))
                {
                    List<DownloadData> datas = new List<DownloadData>();
                    datas.Add(data);

                    m_LocaData.Add(data.downloadPath, datas);
                }
                else
                {
                    var datas = m_LocaData[data.downloadPath];
                    bool iscontains = false;
                    for (int i = 0; i < datas.Count; i++)
                    {
                        if (datas[i].localSavePath == data.localSavePath)
                        {
                            iscontains = true;
                        }
                    }

                    if (!iscontains)
                    {
                        datas.Add(data);
                        m_LocaData[data.downloadPath] = datas;
                    }
                }


                //if (!m_LocaData.Contains(data))
                //{
                //    m_LocaData.Add(data);
                //}
            }
        }
    }
    /// <summary>
    /// 保存本地数据
    /// </summary>
    private void SaveLocaData()
    {
        string str = "[]";
        if (m_LocaData.Count > 0)
        {
            JsonData jsonData = new JsonData();

            foreach (string key in m_LocaData.Keys)
            {
                var data = m_LocaData[key];
                for (int i = 0; i < data.Count; i++)
                {
                    jsonData.Add(data[i].ToJsonData());
                }
            }
            str = jsonData.ToJson();
            Debug.Log("保存本地数据：" + str);
        }

        FileManager.WriteFile(str, m_LocaConfigPath);
    }

    /// <summary>
    /// 检查是否已经下载了资源
    /// </summary>
    public bool CheckDownloadData(DownloadData data)
    {
        if (string.IsNullOrWhiteSpace(data.downloadPath))
        {
            return true;
        }
        

        if (m_LocaData.ContainsKey(data.downloadPath))
        {
            var datas = m_LocaData[data.downloadPath];
            for (int i = 0; i < datas.Count; i++)
            {
                if (datas[i].localSavePath == data.localSavePath)
                {
                    var loca = datas[i];
                    if (!File.Exists(data.localSavePath))
                    {
                        datas.RemoveAt(i);
                        m_LocaData[data.downloadPath] = datas;
                        return false;
                    }
                    else
                    {
                        DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
                        var locatime = startTime.AddSeconds((double)loca.updateTime);
                        var datatime = startTime.AddSeconds((double)data.updateTime);
                        if (DateTime.Compare(locatime, datatime) >= 0)
                        {
                            //Debug.Log(string.Format("{0}>{1}", locatime, datatime));
                            return true;
                        }
                        else
                        {
                            datas.RemoveAt(i);
                            m_LocaData[data.downloadPath] = datas;
                            File.Delete(data.localSavePath);
                            return false;
                        }

                    }
                }
            }
        }
        else
        {
            return false;
        }

        return false;
    }


    public void AddDownloadData(DownloadData data)
    {
        if (!m_WaitDownloadData.ContainsKey(data.downloadPath))
        {
            m_WaitDownload.Add(data);
            List<DownloadData> datas = new List<DownloadData>();
            datas.Add(data);
            m_WaitDownloadData.Add(data.downloadPath, datas);
        }
        else
        {
            var datas = m_WaitDownloadData[data.downloadPath];
            for (int i = 0; i < datas.Count; i++)
            {
                if (datas[i].localSavePath == data.localSavePath)
                {
                    return;
                }
            }

            m_WaitDownloadData[data.downloadPath].Add(data);
            m_WaitDownload.Add(data);
        }
        //if (!m_WaitDownloadURL.Contains(data.downloadPath))
        //{
        //    m_WaitDownload.Add(data);
        //    m_WaitDownloadURL.Add(data.downloadPath);
        //}
    }

    public void UpdataData()
    {
        m_Downloaded.Clear();
        StartCoroutine(StarDownload());
        Debug.Log(m_WaitDownload.Count + "===================================");
    }

    IEnumerator StarDownload()
    {
        var loadUI = (LoadingPanel)UIManager.Instance.GetUI(UINameConfig.LoadingPanel);
        var count = m_WaitDownload.Count;
        yield return new WaitForSeconds(2f);

        while (true)
        {
            if (m_Downloading.Count < 1 && m_WaitDownload.Count > 0)
            {
                var data = m_WaitDownload[0];
                m_WaitDownload.RemoveAt(0);
                if (CheckDownloadData(data))
                {
                    m_Downloaded.Add(data);
                    AddLocaData(data);
                    continue;
                }

                m_Downloading.Add(data);
                loadUI.TextStr = data.downloadPath;
                switch (data.type)
                {
                    case (int)MaterialType.Image:
                        GetImage(data, (Image)null);
                        //m_Downloading.Remove(data);
                        //m_Downloaded.Add(data);
                        //AddLocaData(data);
                        break;
                    case (int)MaterialType.Video:
                        DownloadFile(data);
                        break;
                    case (int)MaterialType.Model:
                        DownloadFile(data);
                        //GetAssetBundle(data);
                        break;
                    case (int)MaterialType.Vuforia:
                        DownloadFile(data);
                        break;
                    default:
                        break;
                }
            }
            //yield return new WaitForSeconds(1f);
            if (m_Downloading.Count <= 0 && m_Downloaded.Count + m_FiledDownload.Count == count)
            {
                SaveLocaData();
                loadUI.ProgressStr = "";
                UIManager.Instance.ShowUI(UINameConfig.LoadingPanel, typeof(LoadingPanel), (int)ELoadState.updateEnd);
                yield break;
            }
            loadUI.ProgressStr = ((float)(m_Downloaded.Count + m_FiledDownload.Count) / count).ToString("P");
            yield return null;
        }
    }


    #region public 请求方法

    /// <summary>
    /// 获取图片
    /// </summary>
    /// <param name="url">图片地址</param>
    /// <param name="image">图片类型</param>
    public void GetImage(DownloadData data, Image image)
    {
        if (string.IsNullOrEmpty(data.downloadPath))
        {
            m_Downloading.Remove(data);
            m_FiledDownload.Add(data);
            return;
        }
        StartCoroutine(LoadImage(data, (tex) =>
        {
            Sprite sprite = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new Vector2(0.5f, 0.5f));
            if (image != null)
            {
                image.sprite = sprite;
            }
            image.transform.localScale = new Vector3(1, (float)tex.height / (float)tex.width, 1);
        }));
    }

    /// <summary>
    /// 获取图片
    /// </summary>
    /// <param name="url">图片地址</param>
    /// <param name="image">图片类型</param>
    public void GetImage(DownloadData data, RawImage image)
    {
        if (string.IsNullOrEmpty(data.downloadPath))
        {
            image.texture = null;
            return;
        }
        StartCoroutine(LoadImage(data, (tex) =>
         {
             if (image == null)
             {
                 return;
             }
             image.texture = tex;
         }));
    }



    /// <summary>
    /// 请求服务器地址上的音效
    /// </summary>
    /// <param name="url">没有音效地址</param>
    /// <param name="actionResult">请求发起后处理回调结果的委托,处理请求结果的AudioClip</param>
    /// <param name="audioType">音效类型</param>
    /// <returns></returns>
    public void GetAudioClip(string url, Action<AudioClip> actionResult, AudioType audioType = AudioType.WAV)
    {
        StartCoroutine(DownloadAudioClip(url, actionResult, audioType));
    }

    /// <summary>
    /// 请求AssetBundle
    /// </summary>
    /// <param name="url">AssetBundle地址</param>
    /// <param name="actionResult">请求发起后处理回调结果的委托,处理请求结果的AssetBundle</param>
    /// <returns></returns>
    public void GetAssetBundle(DownloadData data, Action<AssetBundle> actionResult = null)
    {
        StartCoroutine(_GetAssetBundle(data, actionResult));
    }

    /// <summary>
    /// 下载文件
    /// </summary>
    /// <param name="url">请求地址</param>
    /// <param name="filePath">储存文件的路径,路径需包含文件名</param>
    /// <param name="actionResult">请求发起后处理回调结果的委托,处理请求对象</param>
    /// <returns></returns>
    public void DownloadFile(DownloadData data, Action<UnityWebRequest> actionResult = null)
    {
        StartCoroutine(_DownloadFile(data, actionResult));
    }

    #endregion


    #region 文件

    /// <summary>
    /// 下载文件
    /// </summary>
    /// <param name="url">请求地址</param>
    /// <param name="filePath">储存文件的路径</param>
    /// <param name="actionResult">请求发起后处理回调结果的委托,处理请求对象</param>
    /// <returns></returns>
    IEnumerator _DownloadFile(DownloadData data, Action<UnityWebRequest> actionResult = null)
    {
        string url = HttpTool.Instance.BaseUrl + "/file/download";

        FileDown file = new FileDown();
        if (string.IsNullOrWhiteSpace(data.downloadPath))
        {
            m_Downloading.Remove(data);
            m_FiledDownload.Add(data);
            yield break;
        }
        file.url = data.downloadPath;
        string jsonString = JsonConvert.SerializeObject(file);
        byte[] bodyRaw = Encoding.UTF8.GetBytes(jsonString);

        if (File.Exists(data.localSavePath))
        {
            m_Downloading.Remove(data);
            m_Downloaded.Add(data);
            AddLocaData(data);
            //Debug.Log(data.downloadPath + "---------------------------------");
            yield break;
        }

        Debug.LogFormat("{0}:{1}", "文件下载路径为", url);
        UnityWebRequest uwr = new UnityWebRequest(url, UnityWebRequest.kHttpVerbPOST);
        uwr.uploadHandler = (UploadHandler)new UploadHandlerRaw(bodyRaw);
        uwr.downloadHandler = new DownloadHandlerFile(data.localSavePath);
        uwr.SetRequestHeader("authorization", HttpTool.Instance.Token);
        foreach (var v in HttpTool.Instance.RequestHeader)
        {
            uwr.SetRequestHeader(v.Key, v.Value);
        }
        yield return uwr.SendWebRequest();
        while (!uwr.isDone)
        {
            Debug.Log(uwr.downloadProgress);
        }

        m_Downloading.Remove(data);
        //Debug.Log(data.downloadPath + "---------------------------------");
        if (uwr.isNetworkError || uwr.isHttpError)
        {
            Debug.LogErrorFormat("{0}:{1}", "当前下载发生错误", uwr.error);
            m_FiledDownload.Add(data);
        }
        else
        {
            AddLocaData(data);
            m_Downloaded.Add(data);
        }
        if (actionResult != null)
        {
            actionResult(uwr);
        }

        uwr.Abort();
        uwr.Dispose();
    }

    #endregion

    #region 图片下载

    public void LoadMap(DownloadData data, Image image, Action<Texture2D> loadEnd)
    {
        StartCoroutine(LoadImage(data, loadEnd));
    }



    /// <summary>
    /// 加载图片
    /// </summary>
    /// <param name="url"></param>
    /// <param name="loadEnd"></param>
    /// <returns></returns>
    private IEnumerator LoadImage(DownloadData data, Action<Texture2D> loadEnd)
    {
        Texture2D texture = null;
        //先从内存加载
        if (m_ImageDic.TryGetValue(data.downloadPath, out texture))
        {
            Debug.Log("从内存获取");
            //Debug.Log(data.downloadPath + "---------------------------------");
            m_Downloading.Remove(data);
            m_Downloaded.Add(data);
            AddLocaData(data);
            loadEnd.Invoke(texture);
            yield break;
        }
        //Debug.Log("下载路径为" + filePath);
        //从本地加载
        bool hasLoad = false;
        if (File.Exists(data.localSavePath))
            yield return DownloadTexture(data, (state, localTexture) =>
            {
                Debug.Log("从本地获取   " + data.localSavePath);
                hasLoad = state;
                if (state)
                {
                    loadEnd.Invoke(localTexture);
                    if (!m_ImageDic.ContainsKey(data.downloadPath))
                    {
                        m_ImageDic.Add(data.downloadPath, localTexture);
                    }


                    //Debug.Log(data.downloadPath + "---------------------------------");
                    m_Downloading.Remove(data);
                    m_Downloaded.Add(data);
                    AddLocaData(data);
                }
            }, true);
        if (hasLoad) yield break; //loaded
        //下载
        yield return DownloadTexture(data, (state, downloadTexture) =>
        {
            hasLoad = state;
            if (state)
            {
                Debug.Log("网络下载");
                loadEnd.Invoke(downloadTexture);
                if (!m_ImageDic.ContainsKey(data.downloadPath))
                    m_ImageDic.Add(data.downloadPath, downloadTexture);
                Save2LocalPath(data.localSavePath, downloadTexture);
                AddLocaData(data);
                m_Downloaded.Add(data);
            }
            else
            {
                m_FiledDownload.Add(data);
            }
            m_Downloading.Remove(data);
            //Debug.Log(data.downloadPath + "---------------------------------");
        }, false);
    }

    /// <summary>
    /// 下载图片
    /// </summary>
    /// <param name="url"></param>
    /// <param name="downloadEnd">下载结果</param>
    /// <param name="isLoca">判断是从网络下载还是从本地加载</param>
    /// <returns></returns>
    private IEnumerator DownloadTexture(DownloadData data, Action<bool, Texture2D> downloadEnd, bool isLoca)
    {
        string realUrl = isLoca ? data.localSavePath : HttpTool.Instance.BaseUrl + data.downloadPath;
        //Debug.Log("图片下载地址为" + realUrl);
        //if (isLoca)
        //{
        //string realUrl = data.localSavePath;
        if (!isLoca && File.Exists(data.localSavePath))
        {
            File.Delete(data.localSavePath);
        }

        if (isLoca)
        {
#if UNITY_EDITOR
            realUrl = data.localSavePath;
#elif UNITY_ANDROID
            realUrl = "file://"  + data.localSavePath;
#endif
        }
        using (UnityWebRequest request = new UnityWebRequest(realUrl))
        {
            DownloadHandlerTexture downloadHandlerTexture = new DownloadHandlerTexture(true);
            request.downloadHandler = downloadHandlerTexture;
            yield return request.SendWebRequest();
            if (string.IsNullOrEmpty(request.error))
            {
                Texture2D localTexture = downloadHandlerTexture.texture;
                downloadEnd.Invoke(true, localTexture);
                Resources.UnloadUnusedAssets();
            }
            else
            {
                downloadEnd.Invoke(false, null);
                if (File.Exists(data.localSavePath))
                {
                    File.Delete(data.localSavePath);
                }

                Debug.LogError(request.error);
                Debug.LogError(isLoca);
                Debug.LogError(realUrl);
                Debug.LogError(data.localSavePath);
                Debug.LogError(data.downloadPath);
                Debug.LogError("图片下载失败");


            }
            request.Abort();
            request.downloadHandler.Dispose();
            request.Dispose();
        }
        //}
        //else
        //{
        //    string realUrl = HttpTool.Instance.BaseUrl + "/file/download";
        //    FileDown file = new FileDown();
        //    file.url = data.downloadPath;
        //    string jsonString = JsonMapper.ToJson(file);
        //    byte[] bodyRaw = Encoding.UTF8.GetBytes(jsonString);

        //    using (UnityWebRequest request = new UnityWebRequest(realUrl, "POST"))
        //    {
        //        request.uploadHandler = (UploadHandler)new UploadHandlerRaw(bodyRaw);
        //        DownloadHandlerTexture downloadHandlerTexture = new DownloadHandlerTexture(true);
        //        request.downloadHandler = downloadHandlerTexture;
        //        request.SetRequestHeader("authorization", HttpTool.Instance.Token);
        //        foreach (var v in HttpTool.Instance.RequestHeader)
        //        {
        //            request.SetRequestHeader(v.Key, v.Value);
        //        }
        //        yield return request.SendWebRequest();
        //        if (string.IsNullOrEmpty(request.error))
        //        {
        //            Texture2D localTexture = downloadHandlerTexture.texture;
        //            downloadEnd.Invoke(true, localTexture);
        //        }
        //        else
        //        {
        //            downloadEnd.Invoke(false, null);
        //            if (File.Exists(data.localSavePath))
        //            {
        //                File.Delete(data.localSavePath);
        //            }

        //            Debug.Log(request.error);
        //            Debug.Log(data.downloadPath);
        //            Debug.LogError("图片下载失败");


        //        }
        //        request.Abort();
        //        request.Dispose();
        //    }
        //}
    }

    public void GetMapImage(DownloadData data, Image image, Action<bool, Texture2D> loadEnd)
    {
        StartCoroutine(GetMapImage(data, loadEnd));
    }

    IEnumerator GetMapImage(DownloadData data, Action<bool, Texture2D> downloadEnd)
    {
        string realUrl = HttpTool.Instance.BaseUrl + "/file/download";
        FileDown file = new FileDown();
        file.url = data.downloadPath;
        string jsonString = JsonConvert.SerializeObject(file);
        byte[] bodyRaw = Encoding.UTF8.GetBytes(jsonString);

        using (UnityWebRequest request = new UnityWebRequest(realUrl, "POST"))
        {
            request.uploadHandler = (UploadHandler)new UploadHandlerRaw(bodyRaw);
            DownloadHandlerTexture downloadHandlerTexture = new DownloadHandlerTexture(true);
            request.downloadHandler = downloadHandlerTexture;
            request.SetRequestHeader("authorization", HttpTool.Instance.Token);
            foreach (var v in HttpTool.Instance.RequestHeader)
            {
                request.SetRequestHeader(v.Key, v.Value);
            }
            yield return request.SendWebRequest();
            if (string.IsNullOrEmpty(request.error))
            {
                Texture2D localTexture = downloadHandlerTexture.texture;
                downloadEnd.Invoke(true, localTexture);
                Resources.UnloadUnusedAssets();
            }
            else
            {
                downloadEnd.Invoke(false, null);
                if (File.Exists(data.localSavePath))
                {
                    File.Delete(data.localSavePath);
                }

                Debug.LogError(request.error);
                Debug.LogError(data.downloadPath);
                Debug.LogError("小地图下载失败");
            }
            request.Abort();
            request.downloadHandler.Dispose();
            request.Dispose();
        }
    }

    /// <summary>
    /// 保存图片
    /// </summary>
    /// <param name="url"></param>
    /// <param name="texture"></param>
    private void Save2LocalPath(string path, Texture2D texture)
    {
        byte[] bytes = texture.EncodeToPNG();
        //string savePath = GetLocalPath();
        //string filename = Path.GetFileName(url);
        if (!Directory.Exists(path))
        {
            DirectoryInfo pathInfo = new DirectoryInfo(path);
            pathInfo.Parent.Create();
        }
        if (File.Exists(path))
        {
            File.Delete(path);
        }
        try
        {
            File.WriteAllBytes(path, bytes);
        }
        catch (Exception ex)
        {
            Debug.LogError(ex.ToString());
        }
    }

    /// <summary>
    /// 获取图片保存路径
    /// 是否加入用户/场景目录
    /// </summary>
    /// <returns></returns>
    private string GetLocalPath()
    {
        string savePath = LocaDataPath + "/" + DataManager.Instance.CurrentScene.id.ToString() + "/pics/";
        if (!Directory.Exists(savePath))
        {
            Directory.CreateDirectory(savePath);
        }
        return savePath;
    }

    #endregion

    #region 音效

    /// <summary>
    /// 请求服务器地址上的音效
    /// </summary>
    /// <param name="url">音效地址</param>
    /// <param name="actionResult">请求发起后处理回调结果的委托,处理请求结果的AudioClip</param>
    /// <param name="audioType">音效类型</param>
    /// <returns></returns>
    IEnumerator DownloadAudioClip(string url, Action<AudioClip> actionResult, AudioType audioType = AudioType.WAV)
    {
        using (var uwr = UnityWebRequestMultimedia.GetAudioClip(url, audioType))
        {
            yield return uwr.SendWebRequest();
            if (!(uwr.isNetworkError || uwr.isHttpError))
            {
                if (actionResult != null)
                {
                    actionResult(DownloadHandlerAudioClip.GetContent(uwr));
                }
            }
        }
    }

    #endregion

    #region AssetBundle


    /// <summary>
    /// 请求AssetBundle
    /// </summary>
    /// <param name="url">AssetBundle地址 </param>
    /// <param name="actionResult">请求发起后处理回调结果的委托,处理请求结果的AssetBundle</param>
    /// <returns></returns>
    IEnumerator _GetAssetBundle(DownloadData data, Action<AssetBundle> actionResult = null)
    {
        if (string.IsNullOrWhiteSpace(data.downloadPath))
        {
            m_Downloading.Remove(data);
            m_FiledDownload.Add(data);
            yield break;
        }
        else
        {

            if (m_AbObjs.ContainsKey(Util.MD5Encrypt(data.downloadPath)))
            {
                m_Downloading.Remove(data);
                m_Downloaded.Add(data);
                //Debug.Log(data.downloadPath + "---------------------------------");
                yield break;
            }

            string baseUrl = HttpTool.Instance.BaseUrl + data.downloadPath;
            //Debug.Log(baseUrl + "ABABABABABAB");
            AssetBundle ab = null;
            UnityWebRequest request = UnityWebRequestAssetBundle.GetAssetBundle(baseUrl);
            request.SetRequestHeader("authorization", HttpTool.Instance.Token);
            yield return request.SendWebRequest();
            if (request.isNetworkError || request.isHttpError)
            {
                m_Downloading.Remove(data);
                m_FiledDownload.Add(data);
                Debug.LogError(request.error);
            }
            else
            {
                ab = DownloadHandlerAssetBundle.GetContent(request);
                if (ab == null)
                {
                    request.Dispose();
                    yield break;
                }
                AssetBundleRequest abrequest = ab.LoadAssetAsync<GameObject>(data.name);
                yield return abrequest;
                GameObject obj = abrequest.asset as GameObject;
                var @object = Instantiate(obj);
                @object.SetActive(false);
                m_AbObjs.Add(Util.MD5Encrypt(data.downloadPath), @object);

                m_Downloading.Remove(data);
                m_Downloaded.Add(data);
                AddLocaData(data);
                ab.Unload(false);
            }
            request.Abort();
            request.Dispose();
        }
    }

    #endregion



    private void AddLocaData(DownloadData data)
    {
        if (m_LocaData.ContainsKey(data.downloadPath))
        {
            var datas = m_LocaData[data.downloadPath];
            bool iscontains = false;
            for (int i = 0; i < datas.Count; i++)
            {
                if (datas[i].localSavePath == data.localSavePath)
                {
                    iscontains = true;
                    DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
                    var time1 = startTime.AddSeconds((double)datas[i].updateTime);
                    var time2 = startTime.AddSeconds((double)data.updateTime);
                    if (DateTime.Compare(time1, time2) >= 0)
                    {
                        //Debug.Log(string.Format("{0}>{1}", time1, time2));
                        return;
                    }
                    else
                    {
                        datas.RemoveAt(i);
                        datas.Add(data);
                        m_LocaData[data.downloadPath] = datas;
                        return;
                    }
                }
            }

            if (!iscontains)
            {
                datas.Add(data);
                m_LocaData[data.downloadPath] = datas;
            }
        }
        else
        {
            List<DownloadData> datas = new List<DownloadData>();
            datas.Add(data);
            m_LocaData.Add(data.downloadPath, datas);
        }
    }

    private void OnApplicationQuit()
    {
        Debug.Log("退出程序");
    }


    public GameObject GetAbObj(string DownloadPath)
    {
        if (m_AbObjs.ContainsKey(DownloadPath))
        {
            return m_AbObjs[DownloadPath];
        }
        else
        {
            return null;
        }
    }
}


public class FileDown
{
    public string url { get; set; }
}