Android

public class Chat extends AppCompatActivity
{
    LinearLayout layout;
    RelativeLayout layout_2;
    ImageView sendButton;
    EditText messageArea;
    ScrollView scrollView;
    Firebase reference1, reference2;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_chat);

        layout = (LinearLayout) findViewById(R.id.layout1);
        layout_2 = (RelativeLayout)findViewById(R.id.layout2);
        sendButton = (ImageView)findViewById(R.id.sendButton);
        messageArea = (EditText)findViewById(R.id.messageArea);
        scrollView = (ScrollView)findViewById(R.id.scrollView);

        Firebase.setAndroidContext(this);

        reference1 = new Firebase("https://zipa1x.firebaseio.com/messages/" + UserDetails.username + "_" + UserDetails.chatWith);
        reference2 = new Firebase("https://zipa1x.firebaseio.com/messages/" + UserDetails.chatWith + "_" + UserDetails.username);

        sendButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String messageText = messageArea.getText().toString();

                if(!messageText.equals("")){
                    Map<String, String> map = new HashMap<String, String>();
                    map.put("message", messageText);
                    map.put("user", UserDetails.username);
                    reference1.push().setValue(map);
                    reference2.push().setValue(map);
                    messageArea.setText("");
                }
            }
        });

        reference1.addChildEventListener(new ChildEventListener()
        {
            @Override
            public void onChildAdded(DataSnapshot dataSnapshot, String s) {

                for (DataSnapshot child: dataSnapshot.getChildren())
                {
                    Map map = dataSnapshot.getValue(Map.class);
                    String message = map.get("message").toString();
                    String userName = map.get("user").toString();

                    if (userName.equals(UserDetails.username))
                    {
                        addMessageBox("You:-\n" + message, 1);

                        //sendNotification(message,userName);
                    } else
                    {
                        addMessageBox(UserDetails.chatWith + ":-\n" + message, 2);

                        sendNotification(message,userName);
                    }
                }
            }

            @Override
            public void onChildChanged(DataSnapshot dataSnapshot, String s) {

            }

            @Override
            public void onChildRemoved(DataSnapshot dataSnapshot) {

            }

            @Override
            public void onChildMoved(DataSnapshot dataSnapshot, String s) {

            }

            @Override
            public void onCancelled(FirebaseError firebaseError) {

            }
        });

        scrollView.post(new Runnable() {
            @Override
            public void run() {
                scrollView.fullScroll(View.FOCUS_DOWN);
            }
        });
    }

    public void addMessageBox(String message, int type){
        TextView textView = new TextView(Chat.this);
        textView.setText(message);

        LinearLayout.LayoutParams lp2 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        lp2.weight = 1.0f;

        if(type == 1) {
            lp2.gravity = Gravity.LEFT;
            textView.setBackgroundResource(R.drawable.bubble_in);
        }
        else{
            lp2.gravity = Gravity.RIGHT;
            textView.setBackgroundResource(R.drawable.bubble_out);
        }
        textView.setLayoutParams(lp2);
        layout.addView(textView);
        //scrollView.fullScroll(View.FOCUS_DOWN);

        scrollView.post(new Runnable() {
            @Override
            public void run() {
                scrollView.fullScroll(View.FOCUS_DOWN);
            }
        });
    }

    private void sendNotification(String message,String userName)
    {
        Intent intent = new Intent(this,Chat.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        PendingIntent pendingIntent = PendingIntent.getActivity(this,0,intent,PendingIntent.FLAG_ONE_SHOT);

        Uri notificationSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

        NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);

        NotificationCompat.Builder builder = (NotificationCompat.Builder) new NotificationCompat.Builder(this)
                .setVisibility(Notification.VISIBILITY_PUBLIC)
                //.setOngoing(true)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle(userName)
                .setContentText(message)
                .setSound(notificationSound)
                .setContentIntent(pendingIntent);

        NotificationManager mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        mNotificationManager.notify(0, builder.build());
    }
}

public class BackgroundService extends Service implements OnCompletionListener
    {
        MediaPlayer mediaPlayer;
        private String STREAM_URL;
        final String textSource = "http://audiophileradio.stream/Ip.txt";

        @Override
        public IBinder onBind(Intent intent) {
            return null;
        }

        @Override
        public void onCreate()
        {

        }

        @Override
        public int onStartCommand(Intent intent, int flags, int startId)
        {
            new MyTask().execute();

            return START_STICKY;
        }

        public void onDestroy() {
            if (mediaPlayer.isPlaying()) {
                mediaPlayer.stop();
            }
            mediaPlayer.release();
        }

        public void onCompletion(MediaPlayer _mediaPlayer) {
            stopSelf();
        }


        @Override
        public boolean onUnbind(Intent intent)
        {
            return super.onUnbind(intent);
        }

        private class MyTask extends AsyncTask<Void, Void, String>
        {
            String textResult;

            @Override
            protected String doInBackground(Void... params) {

                URL textUrl;

                try {
                    textUrl = new URL(textSource);

                    BufferedReader bufferReader
                            = new BufferedReader(new InputStreamReader(textUrl.openStream()));

                    String StringBuffer;
                    String stringText = "";
                    while ((StringBuffer = bufferReader.readLine()) != null) {
                        stringText += StringBuffer;
                    }
                    bufferReader.close();

                    textResult = stringText;
                    return textResult;
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                    textResult = e.toString();
                } catch (IOException e) {
                    e.printStackTrace();
                    textResult = e.toString();
                }

                return null;

            }

            @Override
            protected void onPostExecute(String result) {

                Log.d("DebugTag", "Value: " + textResult);

                super.onPostExecute(result);

                SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(BackgroundService.this);
                String radio = sharedPreferences.getString("station", "8000");

                if (radio != null)
                {
                    STREAM_URL += ":" + radio;
                }

                mediaPlayer = new MediaPlayer();

                if (!mediaPlayer.isPlaying())
                {
                    try
                    {
                        mediaPlayer.reset();
                        mediaPlayer.setDataSource(STREAM_URL);
                        mediaPlayer.prepareAsync();

                        mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
                        {
                            @Override
                            public void onPrepared(MediaPlayer mp)
                            {
                                mediaPlayer.start();
                            }
                        });
                    } catch (IOException e)
                    {
                        e.printStackTrace();
                    }

                }

                mediaPlayer.setOnCompletionListener(BackgroundService.this);
            }
        }

    }

public class Main extends Fragment
{
    private ImageButton buttonPlay;
    private MediaPlayer mPlayer;
    Intent playbackServiceIntent;

    private SeekBar volumeSeekbar = null;
    private AudioManager audioManager = null;

    View view;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)
    {
        view = inflater.inflate(R.layout.fragment_main,container,false);

        buttonPlay = (ImageButton) view.findViewById(R.id.buttonPlay);

        mPlayer = new MediaPlayer();

        initControls();

        buttonPlay.setTag(1);
        buttonPlay.setImageResource(R.drawable.play);
        buttonPlay.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View view)
            {
                if (Integer.parseInt(buttonPlay.getTag().toString()) == 1)
                {
                    buttonPlay.setImageResource(R.drawable.stop);
                    view.setTag(0);

                    getActivity().startService(playbackServiceIntent);

                    Log.e("Play", "onStop");
                    Toast.makeText(getActivity(), "Play", Toast.LENGTH_SHORT).show();
                } else
                {
                    buttonPlay.setImageResource(R.drawable.play);
                    view.setTag(1);
                    mPlayer.stop();
                    getActivity().stopService(playbackServiceIntent);
                    Log.e("Stop", "onPlay");
                    Toast.makeText(getActivity(), "Stop", Toast.LENGTH_SHORT).show();
                }

            }
        });
        playbackServiceIntent = new Intent(getActivity(), BackgroundService.class);

        return view;
    }

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState)
    {
        super.onViewCreated(view, savedInstanceState);

        getActivity().setTitle("Audiophileradio");
    }

    private void startService()
    {
        getActivity().startService(new Intent(getActivity(),BackgroundService.class));
    }
    private void stopService()
    {
        getActivity().stopService(new Intent(getActivity(),BackgroundService.class));
    }

    private void initControls()
    {
        try
        {
            volumeSeekbar = (SeekBar) view.findViewById(R.id.seekBar);
            audioManager = (AudioManager) getActivity().getSystemService(Context.AUDIO_SERVICE);
            volumeSeekbar.setMax(audioManager
                    .getStreamMaxVolume(AudioManager.STREAM_MUSIC));
            volumeSeekbar.setProgress(audioManager
                    .getStreamVolume(AudioManager.STREAM_MUSIC));
            //volumeSeekbar.setMax(100);
            volumeSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener()
            {
                @Override
                public void onStopTrackingTouch(SeekBar arg0)
                {
                }

                @Override
                public void onStartTrackingTouch(SeekBar arg0)
                {
                }

                @Override
                public void onProgressChanged(SeekBar arg0, int progress, boolean arg2)
                {
                    audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
                            progress, 0);

                    //volume.setText("Volume : " + progress + "%");
                }
            });
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}