DownloadManager下载完成，但文件未存储

Question

我在DownloadManager时遇到了奇怪的问题，下载成功了，但文件没有存储。

这是我的代码：

try {
    DownloadManager manager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);
    DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
    request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE);
    request.setAllowedOverRoaming(false);
    request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_HIDDEN);
    request.setDestinationInExternalFilesDir(context, /temp/, "test.mp4");
    final long downloadId = manager.enqueue(request);
    boolean downloading = true;
    while (downloading) {
        DownloadManager.Query query = new DownloadManager.Query();
        query.setFilterById(downloadId);
        Cursor cursor = manager.query(query);
        cursor.moveToFirst();
        int status = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_STATUS));
        int bytesDownloaded = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
        int bytesTotal = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_TOTAL_SIZE_BYTES));
        if(status==DownloadManager.STATUS_SUCCESSFUL){
            Log.i("Progress", "success");
            downloading = false;
        }
        final int progress = (int) ((bytesDownloaded * 100l) / bytesTotal);
        cursor.close();
        subscriber.onNext(progress);
    }
    subscriber.onCompleted();
}catch (Exception e){
    subscriber.onError(e);
}

我的清单中也包含了write_external_storage。我尝试将目录更改为environment.directory_downloads，但是文件仍然没有存储到downloads目录。我试图在/android/data/ / 上找到它，但下载的文件也不在那里。那么我的代码出了什么问题？

Answer 1

我也有这个问题，但当我改变时它解决了

    request.setDestinationInExternalFilesDir(context, Environment.DIRECTORY_DOWNLOADS, videoName+".mp4");

到

request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS.toString(), videoName+".mp4");

现在它保存在“下载”文件夹。