MediaNotification.java

private void showNotification(boolean playing) {

    NotificationCompat.Builder builder = from(getApplicationContext(), ...);
    builder.setSmallIcon(R.drawable.ic_radio_black_24dp); // set small icon
    builder.setColor(getResources().getColor(R.color.colorPrimary)); // set accent color

    builder.setContentTitle(this.mMediaMetaData.getRadioStation() + " - " +
            this.mMediaMetaData.getProgramName());
    builder.setSubText(this.mMediaMetaData.getProgramHost());

    // set actions here
    if(playing) {
        builder.addAction(new NotificationCompat.Action(R.drawable.ic_pause_notification, "Pause",
                getActionIntent(this, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE)));
        builder.setOngoing(true);
    }
    else
        builder.addAction(new NotificationCompat.Action(R.drawable.ic_play_notification, "Play",
                getActionIntent(this, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE)));

    builder.addAction(new NotificationCompat.Action(R.drawable.ic_stop_notification, "Stop",
            getActionIntent(this, KeyEvent.KEYCODE_MEDIA_STOP)));

    builder.setStyle(new NotificationCompat.MediaStyle()
            .setShowActionsInCompactView(0).setMediaSession(mMediaSession.getSessionToken())
            .setShowCancelButton(true).setCancelButtonIntent(getActionIntent(getApplicationContext(),
                    KeyEvent.KEYCODE_MEDIA_STOP)));

    startForeground(SHEGER_MEDIA_NOTIFICATION_ID, builder.build());
}