Android - Update ProgressBar from service, is it possible?

Question

I'm trying to update a progressbar from a service. I don't know if this is the correct way or not, but I have to do that. In the service, I'm trying to upload images and it will return a progress for the notification bar. Now, I want to add a progress bar as the indicator and remove the notification at the notif bar.

These are the codes that I use for calling the ProgressBar

LayoutInflater inflater = (LayoutInflater) getApplicationContext()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    View v = inflater.inflate(R.layout.fragment_doc, null);

    progressBar = (ProgressBar) v.findViewById(R.id.imgProgressBar);

It doesn't return any error, but when I tried to update the progressBar with

progressBar.setProgress(progress)

Nothing's happened.. What should I do to, is there anything wrong with my code?

Will appreciate any input. Thanks

Answer 1

it is not correct way to update you Progress bar ... you should use Broadcast receiver to update your Activity or Fragment as per Service

From Service you should sendBroadCast

 Intent broadcastIntent = new Intent();
        broadcastIntent.setAction(ACTION_NAME);       
        sendBroadcast(broadcastIntent);

For Activity or Framgent

private MyBroadRequestReceiver receiver;

on onCreate

IntentFilter filter = new IntentFilter(ACTION_NAME);
 receiver = new MyBroadRequestReceiver();
registerReceiver( receiver, filter);

and

 @Override
    public void onDestroy() {
        this.unregisterReceiver(receiver);
        super.onDestroy();
    }

And in your Activity or Fragment in Which you Want to update Progress bar

public class MyBroadRequestReceiver extends BroadcastReceiver{

        @Override
        public void onReceive(Context context, Intent intent) {

         //update your progressbar here

        }


    }