private final BroadcastReceiver btReceiver = new BroadcastReceiver() {

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (BluetoothDevice.ACTION_FOUND.equals(action)) {
            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
            Boolean flag = true;

            //Parcelable uuidExtra = intent.getParcelableExtra(BluetoothDevice.EXTRA_UUID);
            Parcelable[] uuidExtra = intent.getParcelableArrayExtra(BluetoothDevice.EXTRA_UUID);
    ParcelUuid[] deviceUuids = device.getUuids();
            // if (listOfAllDevices != null) {
            for (BluetoothDevice listOfAllDevice : listOfAllDevices) {
                if (device.getAddress().equals(listOfAllDevice.getAddress()) && device.getName().equals(listOfAllDevice.getName())) {
                    flag = false;
                }
            }
            //       }


            //if (flag && uuidExtra != null) {
            if (flag) {
                listOfAllDevices.add(device);

                //for(Parcelable p: uuidExtra) allUUIDList.add(p.toString());
                for(Parcelable p: deviceUuids) allUUIDList.add(p.toString());

                if (!listOfAllDevices.isEmpty()) {
                    for (int i = 0; i < listOfAllDevices.size(); i++) {
                        BluetoothDevice fetchedDevice = listOfAllDevices.get(i);
                        if (fetchedDevice.getBondState() != BluetoothDevice.BOND_BONDED) {
                            arrayListBluetoothDevicesReadyToPair.add(fetchedDevice);
                            //        unpairedDevicesUUIDList.add(allUUIDList.get(i));
                            foundDevicesList.add(fetchedDevice.getName() + ", " + fetchedDevice.getAddress());
                            foundDevicesAdapter.notifyDataSetChanged();

                        } else {

                            pairedDevicesList.add(fetchedDevice);
                            //   pairedDeivicesUUIDList.add(allUUIDList.get(i));

                            pairedList.add(fetchedDevice.getName() + ", " + fetchedDevice.getAddress());
                            pairAdapter.notifyDataSetChanged();
                        }
                    }
                }

            }
            for (int i = 0; i < listOfAllDevices.size(); i++) {
                Log.d("LISTA URZADZEN", "LISTA URZADZEN ZNALEZIONYCH:   " + listOfAllDevices.get(i).getName() + ", UUID" + allUUIDList.get(i)); //+ allUUIDList.get(i));
            }
            //   }
        } else if (BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) {
            Log.e("bluetoothReceiver", "ACTION_DISCOVERY_STARTED");
        } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
            Log.e("bluetoothReceiver", "ACTION_DISCOVERY_FINISHED");
        }

    }// onReceive()
};