private IEnumerator DownLoadHandler(ResDownReqInfo info)
{
// 开始下载
WebClient client = new WebClient();
client.DownloadFileCompleted += new System.ComponentModel.AsyncCompletedEventHandler(DownloadFileCompleted);
client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(ProgressChanged);
client.DownloadFileAsync(new Uri(info.m_url), ResDef.OuterPackageDirectory + info.m_name);
clientinfomap[client] = info;
// 正在下载，设置下载状态
info.m_result.eState = ResDownState.Downing;
while (info.m_result.fProgress <= 1.0f)
{
yield return(new WaitForEndOfFrame());
}
if (info.m_result.sErrorMsg == "")
{
// 通知请求下载对象，下载资源成功
info.m_iDown.ResourceDownSucc(info.m_result);
}
else // 下载失败
{
// 通知请求下载对象，下载资源失败
info.m_iDown.ResourceDownFail(info.m_result);
}
// 重置下载中标识
m_DowningFileList.Remove(info.m_name);
client.Dispose();
client = null;
}
// 资源下载刷新
public void Update()
{
//暂停
if (m_isPause)
{
return;
}
// 有异常下载任务，优先下载
if (m_ExceptionQueue.Count > 0)
{
// 没有正在下载
if (m_DowningFileList.Count <= 0)
{
// 开启协程下载
for (int i = 0; i < ConcurrenceNumber; i++)
{
if (m_ExceptionQueue.Count > 0)
{
ResDownReqInfo info = m_ExceptionQueue.Dequeue();
m_DowningFileList[info.m_name] = info.m_url;
StartCoroutine(DownLoadHandler(info));
}
}
}
else
{
return;
}
}
// 有正常下载任务，其次下载
if (m_DownQueue.Count > 0)
{
// 没有正在下载
if (m_DowningFileList.Count <= 0)
{
for (int i = 0; i < ConcurrenceNumber; i++)
{
if (m_DownQueue.Count > 0)
{
// 开启协程下载
ResDownReqInfo info = m_DownQueue.Dequeue();
m_DowningFileList[info.m_name] = info.m_url;
StartCoroutine(DownLoadHandler(info));
}
}
}
else
{
return;
}
}
// // 下载结束，取消订阅Update事件
// if (m_ExceptionQueue.Count <= 0 && m_DownQueue.Count <= 0)
// {
// SubscribeUpdateEvent(false);
// }
}
private void ProgressChanged(object sender, DownloadProgressChangedEventArgs e)
{
WebClient client = (WebClient)sender;
ResDownReqInfo info = clientinfomap[client];
info.m_result.fProgress = e.ProgressPercentage / 100.0f;
}
/// <summary>
/// 获取当前下载信息
/// </summary>
/// <returns>返回当前下载信息</returns>
public ResDownResult?GetCurDownInfo()
{
if (m_DownQueue.Count > 0)
{
// 取出当前下载请求信息对象
ResDownReqInfo info = m_DownQueue.Peek();
return(info.m_result);
}
return(null);
}
void DownloadFileCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
WebClient client = (WebClient)sender;
ResDownReqInfo info = clientinfomap[client];
clientinfomap.Remove(client);
if (e.Error == null)
{
// 更新下载结果信息
info.m_result.eState = ResDownState.DownSucc;
info.m_result.fProgress = 1.01f;
info.m_result.sErrorMsg = "";
}
else // 下载失败
{
// 更新下载结果信息
info.m_result.eState = ResDownState.DownFail;
info.m_result.fProgress = 1.01f;
info.m_result.sErrorMsg = e.Error.ToString();
}
}
