android - 如何以编程方式删除下载管理器android中的通知

Question

我已经在 Activity 中实现了 DownloadManager。下载效果很好。但是这个类会自动创建一个保留在状态栏中的通知。有没有办法删除这个通知。下面是代码:

 Uri uri = Uri.parse(url);
    DownloadManager.Request request = new DownloadManager.Request(uri);
    request.setTitle(fileName);
    request.setDescription(fileName);
    request.setVisibleInDownloadsUi(false);
    request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_ONLY_COMPLETION);

    firmwareZipPath = new File(Environment.getExternalStorageDirectory()
            + File.separator
            + Constants.TEST,
            type + ".tgz");

    request.setDestinationUri(Uri.fromFile(firmwareZipPath));
    downloadId = downloadManager.enqueue(request);

我尝试向 request.setVisibleInDownloadsUi 提供 false。仍然显示通知。

Answer 1

来自official doc :

If set to VISIBILITY_HIDDEN, this requires the permission android.permission.DOWNLOAD_WITHOUT_NOTIFICATION.

所以需要在AndroidManifest.xml中添加权限:

<uses-permission
        android:name="android.permission.DOWNLOAD_WITHOUT_NOTIFICATION" />

欲了解更多信息，请查看official doc