下载文件时的通知图标

Question

Does anyone knows how to use notification icon in status bar when downloading a file? Just like when you are downloading a file in app store. The icon is like in gif.

Answer 1

只需使用默认的android资源android.R.drawable.stat_sys_download 。

Answer 2

Here's a fully functioning example that will show the default "system" download notification icon in the status bar.

private static void showProgressNotification(Context context, int notificationId, String title, String message)
{
    NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context);

    mBuilder.setContentTitle(title)
    .setContentText(message)
    .setSmallIcon(android.R.drawable.stat_sys_download)
    .setTicker("")
    .setProgress(0, 0, true);

    manager.notify(notificationId, mBuilder.build());
}

And when your "download" operation is done, clear the notification:

private static void hideProgressNotification(final NotificationManager manager, final Context context, final int id)
{
    manager.cancel(id);
}

Answer 3

Take a look to Android Download Manager. It shows a notification icon indicating that there are files downloading. Android Download Manager