Connect

BluetoothAdapter blue = BluetoothAdapter.getDefaultAdapter();
for(int index =0; index<adressAndID.length;index++){
                        // Verbindung herstellen

            BluetoothDevice dev = blue.getRemoteDevice(adressAndID[index][0]);

            try {

                UUID id1 = UUID
                        .fromString("00001101-0000-1000-8000-00805F9B34FB");
                if(sock!=null)
                    sock.close();
                Log.i("Status:", "vor connect");
                        Method m = dev.getClass().getMethod("createRfcommSocket", new Class[] {int.class});                             sock = (BluetoothSocket) m.invoke(dev, 1);


                try{
                sock.connect();
                }catch(IOException i)
                {
                    try{
                    sock.connect();
                }catch(IOException ea)
                {
                    sock.connect();
                }
                    }

                    Log.i("Status:", "nach connect");
                in = new Scanner(sock.getInputStream());
                OutputStream out = sock.getOutputStream();

                // Verbunden
                String start = "123;";
                out.write(start.getBytes());
                //Hier passiert viel Datenverarbeitung
                publishProgress("Vorgang abgeschlossen.");
                //Socket schließen
                in.close();
                out.close();
                //out.flush();
                sock.close();
}