//Note:当下载的文件数据大于2G时,该int类型的参数将会数据溢出,所以先自己通过响应头来获取长度,获取不到再使用参数的方式
protected override void ReceiveContentLength(int contentLength)
{
string contentLengthStr = _unityWebRequest.GetResponseHeader("Content-Length");
if (contentLengthStr != null && !"".Equals(contentLengthStr))
{
try
{
_totalFileSize = long.Parse(contentLengthStr);
}
catch (System.FormatException e)
{
UnityEngine.Debug.LogWarning("获取文件长度失败,contentLengthStr:" + contentLengthStr + "," + e.Message);
_totalFileSize = contentLength;
}
catch (System.Exception e)
{
UnityEngine.Debug.LogWarning("获取文件长度失败,contentLengthStr:" + contentLengthStr + "," + e.Message);
_totalFileSize = contentLength;
}
}
else
{
_totalFileSize = contentLength;
}
//这里拿到的下载大小是待下载的文件大小,需要加上本地已下载文件的大小才等于总大小
if (_useRange)
{
_totalFileSize += _localFileSize;
}
if (_useRange && _fileSize != -1 && _totalFileSize != _fileSize)
{
ErrorEvent?.Invoke();
}
else
{
_lastTime = UnityEngine.Time.time;
_lastDataSize = _curFileSize;
StartDownloadEvent?.Invoke();
}
}
public void StartDownload(StartDownloadEvent e, Node any, [JoinAll] DownloadScreenNode screenNode)
{
screenNode.textMapping.Text = screenNode.launcherDownloadScreenText.DownloadText;
}
