Android downloadmanager下載位置

Question

我正在嘗試使用DownloadManager將文件從url下載到/storage/emulated/0/Download DownloadManager

DownloadManager downloadManager = (DownloadManager) context.getApplicationContext().getSystemService(DOWNLOAD_SERVICE);
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
request.allowScanningByMediaScanner();
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE);
request.setAllowedOverRoaming(false);
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setTitle("blah");
String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsoluteFile().toString();
System.out.println(path);
request.setDestinationInExternalPublicDir(path, title);
request.setVisibleInDownloadsUi(true);

final long downloadReference = downloadManager.enqueue(request);

我已確認path確實返回所需的下載路徑。 我的問題是，當文件實際下載時，它們最終/documents/blah ，如果卸載了應用程序，則會從設備中刪除文件。

Answer 1

你有沒有嘗試過

request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, file.name());