Можно ли узнать, что подключенные устройства bluetoooth используют одно и то же приложение или другой способ узнать, что рядом с устройством используется одно и то же приложение без интернета и Wi-Fi?

Question

возможно ли узнать, что устройства используют одно и то же приложение по Bluetooth или другим способом ...

Я пытаюсь использовать фоновый сервис

public class ScanBT extends Service {  

    Handler handler = new Handler();
    private boolean mScanning;
    private BluetoothAdapter mBluetoothAdapter;
    private BluetoothManager mBluetoothManager;

    private Runnable runnableCode = new Runnable() {
        @Override
        public void run() {       
          if (mScanning) {
              mScanning = false;
              mBluetoothAdapter.stopLeScan(mLeScanCallback);    // stop bluetooth scan
              //mBluetoothAdapter.startScan(mLeScanCallback);   // stop bluetooth scan
              Log.d("ScanBT@@@!!!", "Stop Scanning");
              handler.postDelayed(runnableCode, 2000);  // Repeat this the same runnable code block again another 2 seconds
          } else {
              mScanning = true;
              mBluetoothAdapter.startLeScan(mLeScanCallback);   // start bluetooth scan
              Log.d("ScanBTSW@@@@", "Start Scanning");
              handler.postDelayed(runnableCode, 2000);  // Repeat this the same runnable code block again another 2 seconds
          }
        }
    };

    public ScanBT() {
    }

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

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Toast.makeText(this, "ScanBT Started", Toast.LENGTH_LONG).show();

        mBluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);     //instantiate the object
        mBluetoothAdapter = mBluetoothManager.getAdapter();


        handler.post(runnableCode); // start the handler runnable

        return super.onStartCommand(intent, flags, startId);    
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Toast.makeText(this, "ScanBT Destroyed", Toast.LENGTH_LONG).show();
    }   

    private BluetoothAdapter.LeScanCallback mLeScanCallback = new BluetoothAdapter.LeScanCallback() {
        @Override
        public void onLeScan(final BluetoothDevice bluetoothDevice, final int rssi, final byte[] scanData) {
            if (scanData[7] == 0x02 && scanData[8] == 0x15) { // iBeacon indicator
                UUID uuid = getGuidFromByteArray(Arrays.copyOfRange(scanData, 9, 25));
                int major = (scanData[25] & 0xff) * 0x100 + (scanData[26] & 0xff);
                int minor = (scanData[27] & 0xff) * 0x100 + (scanData[28] & 0xff);
                byte txpw = scanData[29];
                Log.i("@@ScanBT@@@", "iBeacon Major = " + major + " | Minor = " + minor + " TxPw " + (int)txpw + " | UUID = " + uuid.toString());
            }
        }

    };

    public static String bytesToHexString(byte[] bytes) {
        StringBuilder buffer = new StringBuilder();
        for(int i=0; i<bytes.length; i++) {
            buffer.append(String.format("%02x", bytes[i]));
        }
        return buffer.toString();
    }
    public static UUID getGuidFromByteArray(byte[] bytes)
    {
        ByteBuffer bb = ByteBuffer.wrap(bytes);
        UUID uuid = new UUID(bb.getLong(), bb.getLong());
        return uuid;
    }


}