Bluetooth connection 2 devices without pairing. Error socket close

Question

I am trying to connect two phones without pairing it using createInsecureRfcommSocketToServiceRecord method unable to connect device and it throws IOException. System.err: java.io.IOException: socket closed

You can see my code . In App there is new scanning bluetooth devices list when i click on that particular item its goes to second Activity and it connect with that device.

Code :

This OnItemClick is listner of Searched new devices list.

  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        bdDevice = arrayListBluetoothDevices.get(position);
        Intent intents = new Intent(Main_Activity.this, SecondActivity.class);
        intents.putExtra("deviceAddress", bdDevice.getAddress());
        startActivity(intents);
       }

SecondActivity.class :

@Override
    public void onResume() {
        super.onResume();
        Intent intent = getIntent();
        address = intent.getStringExtra("deviceAddress");
    BluetoothDevice device = bluetoothAdapter.getRemoteDevice(address);
    try {

   //I am creating   insecureRFcomm  because of  no pairing dialog required.

        socket = device.createInsecureRfcommSocketToServiceRecord(MY_UUID);
        socket.getRemoteDevice().getAddress();

    } catch (Exception e) {
        e.printStackTrace();
    }
    bluetoothAdapter.cancelDiscovery();
    Log.d(TAG, "...Connecting to Remote...");
    try {

        //Connection establish between BT-Device  and phone.
        socket.connect();


        counter = 0;
        Log.d(TAG, "...Connection established and data link opened...");
    } catch (IOException e) {
        try {
            //Connection close.
            socket.close();
            if (inStream!=null){
                inStream.close();
            }
        } catch (Exception e2) {
            e.printStackTrace();
            e2.printStackTrace();
        }
        finally {
            final AlertDialog alertDialog = new AlertDialog.Builder(SBLActivity.this).create();
            alertDialog.setMessage("Device is Non SBL.");
            alertDialog.setTitle("Device  Connection");
            alertDialog.setCancelable(false);
            alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    alertDialog.dismiss();
                    finish();
                }
            });
            alertDialog.show();
        }
    }
    }

I am getting error at Socket.connect(); and it goes to catch block. How to fix that, OR any other way to connect bluetooth socket without pairing dialog or Paring device or with pairng device and no pairing dialog

Thank you.

Bluetooth connection 2 devices without pairing. Error socket close

0 Answers0