android - Motorola Bluetooth バーコード スキャナ (CS3070) を介してデータを読み取ると、2 つの文字列になりますか?

Question

私 は Motorola Bluetooth バーコードスキャナー(CS3070) を介してデータを読み取る作業を行って います。Bluetooth を介して読み取ることにより、スキャンされたすべてのバーコードに 2 つの文字列が発生します。私の問題を理解していただければ幸いです。開発者リンクから使用されたものと同じコード

Bluetooth経由でスレッドに接続してデータを読み取る私のコードは次のとおりです。

private class ConnectThread extends Thread {
        private BluetoothSocket mmSocket;
        private final BluetoothDevice mmDevice;

        public ConnectThread(BluetoothDevice device) {
            mmDevice = device;
            BluetoothSocket tmp = null;

            // Get a BluetoothSocket for a connection with the
            Method m;
            try {
                m = device.getClass().getMethod("createRfcommSocket",
                        new Class[] { int.class });
                try {
                    tmp = (BluetoothSocket) m.invoke(device, 1);
                } catch (IllegalArgumentException e) {
                    e.printStackTrace();
                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                } catch (InvocationTargetException e) {
                    e.printStackTrace();
                }
            } catch (NoSuchMethodException e1) {
                e1.printStackTrace();
            }

            mmSocket = tmp;
        }

        public void run() {
            setName("ConnectThread");

            // Always cancel discovery because it will slow down a connection
            mAdapter.cancelDiscovery();

            // Make a connection to the BluetoothSocket
            try {
                // This is a blocking call and will only return on a
                // successful connection or an exception
                mmSocket.connect();
            } catch (IOException e) {
                connectionFailed();
                // Close the socket
                try {
                    mmSocket.close();
                } catch (IOException e2) {
                    Log.e(TAG,
                            "unable to close() socket during connection failure",
                            e2);
                }
                // Start the service over to restart listening mode
                BluetoothService.this.start();
                return;
            }

            // Reset the ConnectThread because we're done
            synchronized (BluetoothService.this) {
                mConnectThread = null;
            }

            // Start the connected thread
            connected(mmSocket, mmDevice);
        }

        public void cancel() {
            try {
                mmSocket.close();
            } catch (IOException e) {
                Log.e(TAG, "close() of connect socket failed", e);
            }
        }
    }


private class ConnectedThread extends Thread {
        private final BluetoothSocket mmSocket;
        private final InputStream mmInStream;
        private final OutputStream mmOutStream;

        public ConnectedThread(BluetoothSocket socket) {

            mmSocket = socket;
            InputStream tmpIn = null;
            OutputStream tmpOut = null;

            // Get the BluetoothSocket input and output streams
            try {
                tmpIn = mmSocket.getInputStream();
                tmpOut = mmSocket.getOutputStream();
            } catch (IOException e) {
                Log.e(TAG, "temp sockets not created", e);
            }

            mmInStream = tmpIn;
            mmOutStream = tmpOut;
        }

        public void run() {

            byte[] buffer = new byte[1024];
            int bytes = 0;

            // Keep listening to the InputStream while connected
            while (true) {
                try {

                    // Read from the InputStream
                    bytes = mmInStream.read(buffer);

                    // Send the obtained bytes to the UI Activity
                    mHandler.obtainMessage(ScanningActivity.MESSAGE_READ,
                            bytes, -1, buffer).sendToTarget();
                } catch (IOException e) {
                    Log.e(TAG, "disconnected", e);
                    connectionLost();
                    break;
                }
            }
        }

        /**
         * Write to the connected OutStream.
         * 
         * @param buffer
         *            The bytes to write
         */
        public void write(String buffer) {
            try {
                mmOutStream.write((buffer + "\n").getBytes());

                // Share the sent message back to the UI Activity
                mHandler.obtainMessage(ScanningActivity.MESSAGE_WRITE, -1, -1,
                        buffer).sendToTarget();
            } catch (IOException e) {
                Log.e(TAG, "Exception during write", e);
            }
        }

        public void cancel() {
            try {
                mmSocket.close();
                mmInStream.close();
                mmOutStream.close();
            } catch (IOException e) {
                Log.e(TAG, "close() of connect socket failed", e);
            }
        }
    }

誰かがそれに対する答えを持っているかどうか教えてください。前もって感謝します