public void discoverDevices(View view) {

        discoveredDevices.clear();
        listAdapter.notifyDataSetChanged();

        if (discoverDevicesReceiver == null) {
            discoverDevicesReceiver = 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);

                        if (!discoveredDevices.contains(device)) {
                            discoveredDevices.add(device);
                            listAdapter.notifyDataSetChanged();
                        }
                    }
                }
            };
        }
         //some 

    final JSONArray Codes = new JSONArray(Arrays.asList(discoveredDevices));
    //Codes result = mac адреса, мне нужны названия