public async void Init()
{
var downloadedFileInfoList = await DownloadFileListManager.ReadDownloadedFileListAsync();
if (downloadedFileInfoList != null)
{
DownloadFileInfoList.AddRange(downloadedFileInfoList);
}
}
public async void AddDownloadFile()
{
var url = AddFileDownloadViewModel.CurrentDownloadUrl;
var file = AddFileDownloadViewModel.CurrentDownloadFilePath;
var logger = _loggerFactory.CreateLogger <SegmentFileDownloader>();
using var progress = new FileDownloadSpeedProgress();
file = Path.GetFullPath(file);
var downloadFileInfo = new DownloadFileInfo()
{
FileName = Path.GetFileName(file),
AddedTime = DateTime.Now.ToString(),
DownloadUrl = url,
FilePath = file
};
DownloadFileInfoList.Add(downloadFileInfo);
progress.ProgressChanged += (sender, downloadProgress) =>
{
downloadFileInfo.DownloadSpeed = downloadProgress.DownloadSpeed;
downloadFileInfo.FileSize = downloadProgress.FileSize;
downloadFileInfo.DownloadProcess = downloadProgress.DownloadProcess;
};
_ = DownloadFileListManager.WriteDownloadedFileListToFileAsync(DownloadFileInfoList.ToList());
var segmentFileDownloader = new SegmentFileDownloader(url, new FileInfo(file), logger, progress,
sharedArrayPool: SharedArrayPool, bufferLength: FileDownloaderSharedArrayPool.BufferLength);
CurrentSegmentFileDownloader = segmentFileDownloader;
await segmentFileDownloader.DownloadFileAsync();
// 下载完成逻辑
progress.Stop();
downloadFileInfo.DownloadSpeed = "";
downloadFileInfo.DownloadProcess = "完成";
downloadFileInfo.IsFinished = true;
_ = DownloadFileListManager.WriteDownloadedFileListToFileAsync(DownloadFileInfoList.ToList());
// 后续优化多任务下载的时候的回收
_ = Task.Delay(TimeSpan.FromSeconds(3))
.ContinueWith(_ => ((FileDownloaderSharedArrayPool)SharedArrayPool).Clean());
}