java – Android Sending the names of found bluetooth devices to the server

Question:

There is a need to send the names of all found bluetooth devices to the server.

Data in listadapter and listview , how to send device names to the server in the format " BT_name 1, BT_name 2 ... etc". The code:

public class SearchActivity extends ListActivity {

    private BluetoothAdapter bluetoothAdapter;
    private BroadcastReceiver discoverDevicesReceiver;
    private BroadcastReceiver discoveryFinishedReceiver;


    private final List<BluetoothDevice> discoveredDevices = new ArrayList<BluetoothDevice>();

    private ArrayAdapter<BluetoothDevice> listAdapter;

    private ProgressDialog progressDialog;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_search);

        bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

        listAdapter = new ArrayAdapter<BluetoothDevice>(getBaseContext(), android.R.layout.simple_list_item_1, discoveredDevices) {
            @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                View view = super.getView(position, convertView, parent);
                final BluetoothDevice device = getItem(position);
                ((TextView) view.findViewById(android.R.id.text1)).setText(device.getName());
                return view;
            }
        };
        setListAdapter(listAdapter);

    }

    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();
                        }
                    }
                }
            };
        }

        if (discoveryFinishedReceiver == null) {
            discoveryFinishedReceiver = new BroadcastReceiver() {
                @Override
                public void onReceive(Context context, Intent intent) {
                    getListView().setEnabled(true);
                    if (progressDialog != null)
                        progressDialog.dismiss();

                    unregisterReceiver(discoveryFinishedReceiver);
                }
            };
        }

        registerReceiver(discoverDevicesReceiver, new IntentFilter(BluetoothDevice.ACTION_FOUND));
        registerReceiver(discoveryFinishedReceiver, new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED));

        getListView().setEnabled(false);

        progressDialog = ProgressDialog.show(this, "Поиск устройств", "Подождите...");

        bluetoothAdapter.startDiscovery();
    }

    @Override
    public void onPause() {
        super.onPause();
        bluetoothAdapter.cancelDiscovery();

        if (discoverDevicesReceiver != null) {
            try {
                unregisterReceiver(discoverDevicesReceiver);
            } catch (Exception e) {
                Log.d("SearchActivity", "Error turn off reciever: " + discoverDevicesReceiver);
            }
        }


    }

}

I need to send them all at once, not one by one. How to send I know, I need to form the format according to the above template from the data in the listadapter 'e.

Answer:

BluetoothDevice has getName()

What else do you need?

StringBuilder deviceNames = new StringBuilder;
for(BluetoothDevice device: discoveredDevices)
    deviceNames.append(device.getName()+",");