Android studio - bluetooth HC-06

[cosmin_ctin2005]

Salutare,

Se "joaca" cineva cu Android studio? Nu reusesc sa deschid o conexiune cu un modul Bluetooth HC-06.

 

Sunt incepator si nu stiu unde gresesc.

 

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
        BluetoothDevice BD=null;
        ClientClass clientClass = new ClientClass(BD);
       clientClass.start();

private  class ClientClass extends Thread {

    private BluetoothDevice device;
    private BluetoothSocket socket;

    public ClientClass(BluetoothDevice device1) {
        device = device1;

        try {
            device.createRfcommSocketToServiceRecord(MY_UUID);
        } catch (IOException e) {
            e.printStackTrace();
        }
        Toast.makeText(getApplicationContext(), "test", Toast.LENGTH_SHORT).show();
    }

         public void run ()
        {

            try {
          socket.connect();
         Message message=Message.obtain();
         message.what=STATE_CONNECTED;
         handler.sendMessage(message);
                sendReceive=new SendReceive(socket);
                sendReceive.start();

        } catch (IOException e) {
         e.printStackTrace();
           Message message=Message.obtain();
           message.what=STATE_CONNECTION_FAILED;
           handler.sendMessage(message);
        }
    }
}

[Bandi Szasz]

Salut, e putin mai complicat din cate tin minte. Am eu un proiectel in Android Studio cu bluetooth ( eu am folosit modul HC - 05) l-am facut acuma vro 2 ani nu mai tin minte exact cum era treaba cu bluetooth-ul, eu am gasit un tutorial pe net si l-am adaptat pe acela. Daca crezi ca te ajuta sa treci prin el si sa vezi cum este facut o sa-l caut, e undeva pe OneDrive, dar din pacate nu mai tin minte exact cum mergea deci doar asa ca model si sa vezi daca intelegi ceva de acolo si il poti refolosii.

[informer]

Tot asa ca si Bandi, am conectat un HC06... dar n-ar trebui sa aiba importanta d.p.d.v. al codului Android.

Mai jos partea relevanta din serviciul bluetooth de la un proiectel de-al meu:

(http://cse-electronics.com/index.php/ro/dispozitiv-monitorizare-barca/)

/**
   * Get the BT adapter and start it if not already on.
   * @return - true if success.
   */
  protected boolean btInit() {
    int waitForStartTime = 10;                  //seconds to wait for BT start

    // get the BT adapter
    adapter = BluetoothAdapter.getDefaultAdapter();
    if(adapter == null) {
      // Device does not support Bluetooth
      Log.e(BT_TAG, "No Bluetooth support!");
      isBtConnected = false;
      return false;
    }
    Log.i(BT_TAG, "Bluetooth found");

    // switch BT adapter ON
    if(!adapter.isEnabled()) {
      adapter.enable();  //assuming BLUETOOTH_ADMIN rights are granted
      int i;
      for(i = 0; i < waitForStartTime; i++) {
        if(adapter.getState() == BluetoothAdapter.STATE_ON) break;
        Log.w(BT_TAG, "Waiting for bluetooth to start");
        try {
          Thread.sleep(1000, 0);
        } catch(InterruptedException e) {
          e.printStackTrace();
        }
      }
      if(i == waitForStartTime) {
        Log.e(BT_TAG, "Cannot start bluetooth!");
        isBtConnected = false;
        return false;
      }
    }
    Log.i(BT_TAG, "Bluetooth is started");
    return true;
  }


  /**
   * Connect to external BT device and create input/output streams
   * @return - true if success
   */
  protected boolean btConnect() {
    device = null;
    btOutputStream = null;
    btInputStream = null;

    btDevices = adapter.getBondedDevices();
    if(btDevices.size() == 0) {
      Log.e(BT_TAG, "Cannot find any paired BT device!");
      isBtConnected = false;
      return false;
    }
    Log.i(BT_TAG, "Total BT paired devices: " + btDevices.size());
    for(BluetoothDevice btDevice : btDevices) {
      if(btNames.contains(btDevice.getName())) {
        Log.i(BT_TAG, "Found valid paired BT device: " + btDevice.getName());
        device = btDevice;
        break;
      }
    }
    if(device == null) {
      Log.e(BT_TAG, "Cannot find valid paired BT device!");
      isBtConnected = false;
      return false;
    }
    try {
      btSocket = device.createRfcommSocketToServiceRecord(uuid);
      btSocket.connect();
      btOutputStream = btSocket.getOutputStream();
      btInputStream = btSocket.getInputStream();
    } catch(IOException e) {
      Log.e(BT_TAG, "Cannot create BT I/O streams!");
      return false;
    }
    Log.i(BT_TAG, "BT I/O streams are created");
    isBtConnected = true;
    return true;
  }

 

Editat Decembrie 8, 2018 de informer

[cosmin_ctin2005]

Multumesc frumos pentru ajutor. Am reusit sa activez conexiunea.