Android DownloadManager.ERROR_FILE_ERROR

Question

可能重复

我正在使用Android DownloadManager下载大型zip文件。我有listview，显示所有zip文件的列表，用户可以点击项目开始下载。一次只能下载一个项目。当新的列表项目开始下载，而其他下载正在进行中，我从队列中删除以前的下载id。一切正常。但有时我在LG g2设备OS 5.0.2上得到ERROR_FILE_ERROR。下面是代码:

Uri uri = Uri.parse(path);
DownloadManager.Request request = new DownloadManager.Request(uri);
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE);
request.setAllowedOverRoaming(false);
request.setVisibleInDownloadsUi(false);
String localStorageBasePath = FileUtils.zipDirectory(context).getAbsolutePath() + File.separator + fileName;
Uri localStorageBasePathUri = Uri.fromFile(new File(localStorageBasePath));
request.setDestinationUri(localStorageBasePathUri);
Long downloadId = downloadManager.enqueue(request);

它在其他设备上运行良好，包括nexus 5、三星s3、note2、华为等。当我开始下载文件时，它立即停止/失败，原因是DownloadManager.ERROR_FILE_ERROR。我试图删除/清理外部存储目录，确保其不是ERROR_INSUFFICIENT_SPACE错误等，但它不起作用。任何帮助吗?

Answer 1

这可能更防弹一些:

public void file_download(String path, String filename) 
{
    Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).mkdirs();
    Uri uri = Uri.parse(path);
    DownloadManager.Request request = new DownloadManager.Request(uri);
    request.setDescription("");
    request.setTitle("");
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) 
    {
       request.allowScanningByMediaScanner();
       request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
    }
    request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE);
    request.setAllowedOverRoaming(false);
    request.setVisibleInDownloadsUi(false);
    request.setDestinationInExternalFilesDir(context, DIRECTORY_DOWNLOADS, fileName);
    //String localStorageBasePath = FileUtils.zipDirectory(context).getAbsolutePath() + File.separator + fileName;
    //Uri localStorageBasePathUri = Uri.fromFile(new File(localStorageBasePath));
    //request.setDestinationUri(localStorageBasePathUri);
    DownloadManager downloadManager = (DownloadManager) this.getSystemService(Context.DOWNLOAD_SERVICE);
    Long downloadId = downloadManager.enqueue(request);
}