帮我用flutter写一个获取window和macos设备唯一编码的功能

以下是使用Flutter编写获取Windows和macOS设备唯一编码的示例代码：

import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Device Info',
      home: HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  String _deviceUniqueId = 'Unknown';

  @override
  void initState() {
    super.initState();
    _getDeviceUniqueId();
  }

  void _getDeviceUniqueId() async {
    if (Platform.isWindows) {
      // For Windows, use the computer name as the unique ID
      String computerName = await SystemInformation.computerName;
      setState(() {
        _deviceUniqueId = computerName;
      });
    } else if (Platform.isMacOS) {
      // For macOS, use the hardware UUID as the unique ID
      String hardwareUUID = await SystemInformation.hardwareUUID;
      setState(() {
        _deviceUniqueId = hardwareUUID;
      });
    } else {
      setState(() {
        _deviceUniqueId = 'Unsupported platform';
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Device Info')),
      body: Center(
        child: Text('Device Unique ID: $_deviceUniqueId'),
      ),
    );
  }
}

在上面的代码中，我们使用了SystemInformation类来获取Windows和macOS设备的唯一编码。如果应用程序在不受支持的平台上运行，我们将在UI中显示“Unsupported platform”文本。您可以将此代码复制并粘贴到您的Flutter应用程序中，以获取Windows和macOS设备的唯一编码