Refresh progress bar in notification bar

Question

I would like to put a progress bar in the notification bar. The idea is showing the progress bar while the program uploads a file to a server. Everything else is ok, but I can not figure out how to refresh the progress bar inside the notification. Does anybody knows any pattern to play with? I mean, where I should refresh the progress bar, in a service or activity and so.

I don't know if it is possible. Have you tried with an animated gif? — Macarse, Apr 22 '10 at 12:41
Not yet, but I need to show in real time the upload progress, so somehow I need to update the progress bar. I think that using an animated gif is valid if you only show a "loading" message or so. Anyway thanks for your time. — ahmontero, Apr 22 '10 at 13:42
im sure its possible. Market app shows a progress bar when downloading and installing apps in the notification bar... — seanmonstar, Apr 27 '10 at 20:59

score 17 · Accepted Answer · answered Apr 27 '10 at 21:19

I don't know what your code looks like, so I don't know what you need to modify, butI did some searching through the documentation. I found some stuff on Notifications, ProgressBars, and RemoteViews.

Specifically, in RemoveView, you can update the Progress bar. So combining some of the example code in each link, I get something like this:

public class MyActivity extends Activity {
    private static final int PROGRESS = 0x1;
    private static final int MAX_PROGRESS = 100;

    private int mProgressStatus = 0;

    private Handler mHandler = new Handler();

    protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        //define Notification
        //...

        RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.custom_notification_layout);
        contentView.setProgressBar(R.id.progress_bar, MAX_PROGRESS, mProgressStatus, false);
        notification.contentView = contentView;

        // Start file upload in a background thread
        new Thread(new Runnable() {
            public void run() {
                while (mProgressStatus < MAX_PROGRESS) {
                    mProgressStatus = doWork();

                    // Update the progress bar
                    mHandler.post(new Runnable() {
                        public void run() {
                            contentView.setProgressBar(R.id.progress_bar, MAX_PROGRESS, mProgressStatus, false);
                        }
                    });
                }
            }
        }).start();
    }
}

do you have to have a progressbar defined in your custom xml layout? Or will RemoteViews.setProgressBar() take care of that. The reason I ask is because http://developer.android.com/reference/android/widget/RemoteViews.html#setProgressBar(int, int, int, boolean) they say to give "The id of the view whose text should change." — Pzanno, Feb 16 '11 at 02:07
@Pzanno - I wondered the exact same thing (thus the +1). I have found that you do have to define your own progress bar in your custom xml layout. — ArtOfWarfare, Dec 07 '12 at 16:54
great example...i am also using progressbar in my custome view but...it hangs my system i dont know why...everything goes smooth with default notification progressbar — H Raval, Aug 05 '16 at 09:34

score 1 · Answer 2 · edited Jul 21 '17 at 09:06

1

You can use custom views in Notification:
https://developer.android.com/guide/topics/ui/notifiers/notifications.html#CustomExpandedView

edited Jul 21 '17 at 09:06

Vadim Kotov

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answered Apr 27 '10 at 20:58

Rorist

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It turns out this answer is the only one which worked for me, but there is such a tremendous amount of information to read that you couldn't really put it all in a concise answer. The link is to official documentation, if it changes just update the link. – intrepidis May 31 '15 at 22:18

score 0 · Answer 3 · answered Dec 25 '13 at 11:12

0

To remove a ProgressBar from RemoteView use the following code :-

 remoteViews.setViewVisibility(R.id.progressBar, View.INVISIBLE);

You can also use View.GONE but that will make android to fill empty space.

answered Dec 25 '13 at 11:12

Rohan Kandwal

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Refresh progress bar in notification bar

3 Answers3

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