Bluetooth helper

BluetoothHelper.java

public static final UUID RFCOMM_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");

    public static BluetoothSocket createSocket(BluetoothDevice device) throws IOException {
        if(Build.VERSION.SDK_INT > Build.VERSION_CODES.GINGERBREAD) {
            return createSocketPostGingerbread(device);
        }
        else {
            return createSocketPreGingerbread(device);
        }
    }

    @TargetApi(Build.VERSION_CODES.GINGERBREAD_MR1)
    private static BluetoothSocket createSocketPostGingerbread(BluetoothDevice device) throws IOException {
       return device.createInsecureRfcommSocketToServiceRecord(RFCOMM_UUID);
    }

    private static BluetoothSocket createSocketPreGingerbread(BluetoothDevice device) throws IOException {
        try {
            BluetoothSocket socket = null;
            Constructor<BluetoothSocket> constructor = BluetoothSocket.class.getDeclaredConstructor(
                    int.class, int.class, boolean.class, boolean.class, BluetoothDevice.class, int.class, ParcelUuid.class);
            if(constructor == null)
                throw new IOException("can't find the constructor for socket");

            constructor.setAccessible(true);
            Field f_rfcomm_type = BluetoothSocket.class.getDeclaredField("TYPE_RFCOMM");
            f_rfcomm_type.setAccessible(true);
            int rfcomm_type = (Integer)f_rfcomm_type.get(null);
            socket = constructor.newInstance(new Object[] { rfcomm_type, -1, false, true, device, -1,new ParcelUuid(RFCOMM_UUID)} );
            return socket;
        } catch (NoSuchMethodException e) {
            throw new RuntimeException(e);
        } catch (NoSuchFieldException e) {
            throw new RuntimeException(e);
        } catch(IllegalAccessException e) {
            throw new RuntimeException(e);
        } catch(InstantiationException e) {
            throw new RuntimeException(e);
        } catch(InvocationTargetException e) {
            if(e.getCause() instanceof IOException) {
                throw (IOException)e.getCause();
            }
            throw new RuntimeException(e.getCause());
        }
    }