CODEWITHSUNDEEP
androidservicemedia-playerandroid-seekbar
user5299762
user5299762

Reputation:

How to update SeekBar from MediaPlayer running in Service?

In my app i maid a MediaPlayer playing from Service, to update SeekBar i maid a timer task in Service

timer = new Timer();
timer.scheduleAtFixedRate(new RemindTask(), 0, 1 * 1000);

class RemindTask extends TimerTask {
    @Override
    public void run() {
        if (mediaPlayer!=null && mediaPlayer.isPlaying()){
           MusicPlayerActivity.progress=mediaPlayer.getCurrentPosition();
           MusicPlayerActivity.total=mediaPlayer.getDuration();
        }
    }
}

and using runnable list i made a run method in activity page,

@Override
public void run()
{
    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            seekBar.setMax(total);
            seekBar.setProgress(progress);
        }
    });
}

But my issue is that app is very much slow and going stuck.

Upvotes: 4

Views: 5242

Answers (4)

Philipp
Philipp

Reputation: 433

You can find a working solution in the android-UniversalMusicPlayer reference implementation in https://github.com/googlesamples/android-UniversalMusicPlayer/blob/master/mobile/src/main/java/com/example/android/uamp/ui/FullScreenPlayerActivity.java.

The concept involves setting the current position on a MediaSession instance and then polling the MediaController for changes + calculating the current position:

private void updateProgress() {
    if (mLastPlaybackState == null) {
        return;
    }
    long currentPosition = mLastPlaybackState.getPosition();
    if (mLastPlaybackState.getState() != PlaybackState.STATE_PAUSED) {
        // Calculate the elapsed time between the last position update and now and unless
        // paused, we can assume (delta * speed) + current position is approximately the
        // latest position. This ensure that we do not repeatedly call the getPlaybackState()
        // on MediaController.
        long timeDelta = SystemClock.elapsedRealtime() -
                mLastPlaybackState.getLastPositionUpdateTime();
        currentPosition += (int) timeDelta * mLastPlaybackState.getPlaybackSpeed();
    }
    mSeekbar.setProgress((int) currentPosition);
}

Upvotes: -1

Bincy Baby
Bincy Baby

Reputation: 4743

Use bound service if you need service to activity communication check it here. Or use libraries like EventBus

Upvotes: 0

Androider
Androider

Reputation: 3873

Put in Service to update the value of seek variable(global and static variable) 

     private final Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg){


      //  update the seek variable here
        }
    };

In your activity:

        PlayerConstants.PROGRESSBAR_HANDLER = new Handler(){
             @Override
              public void handleMessage(Message msg){
//get seek bar variable value and set to progress bar
}
        };
     }catch(Exception e){}

Upvotes: 1

Dhaval Parmar
Dhaval Parmar

Reputation: 18978

use BroadcastReceiver to update seek-bar form service to activity

add broadcast in activity to update your seek bar

BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            //do something based on the intent's action
            // UPDATE YOUR UI FROM HERE
        }
    };

register receiver in activity like below

@Override
    protected void onResume() {
        super.onResume();
        registerReceiver(receiver, filter);
    }

    @Override
    protected void onPause() {
        super.onPause();
        unregisterReceiver(receiver);
    }

send broadcast from your service -> add below code in your service to call broadcast

Intent intent = new Intent();
intent.setAction("android.mybroadcast");
this.context.sendBroadcast(intent);

pass data in intent -> integer value for seek-bar :)

Upvotes: 4

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