当然，下面是一个关于如何在Flutter项目中使用flutter_geolocation_service插件来获取地理位置信息的代码示例。这个插件提供了对设备地理位置的访问，可以获取当前位置以及持续监听位置变化。

首先，确保你已经在pubspec.yaml文件中添加了flutter_geolocation_service依赖：

dependencies:
  flutter:
    sdk: flutter
  flutter_geolocation_service: ^x.y.z  # 请替换为最新版本号

然后运行flutter pub get来安装依赖。

接下来，在你的Flutter项目中，你可以按照以下步骤使用flutter_geolocation_service插件：

1. 导入插件

在你的Dart文件中导入插件：

import 'package:flutter_geolocation_service/flutter_geolocation_service.dart';

2. 请求权限并获取当前位置

下面是一个完整的示例，展示了如何请求位置权限，并获取当前设备的位置：

import 'package:flutter/material.dart';
import 'package:flutter_geolocation_service/flutter_geolocation_service.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  GeolocationStatus _geolocationStatus = GeolocationStatus.unknown;
  Position? _currentPosition;

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

  Future<void> _checkGeolocationPermission() async {
    bool serviceEnabled;
    LocationPermission permission;

    // Test if location services are enabled.
    serviceEnabled = await GeolocationService.isLocationServiceEnabled();
    if (!serviceEnabled) {
      setState(() {
        _geolocationStatus = GeolocationStatus.disabled;
      });
      return Future.error('Location services are disabled.');
    }

    permission = await GeolocationService.checkPermission();
    if (permission == LocationPermission.denied) {
      permission = await GeolocationService.requestPermission();
      if (permission == LocationPermission.denied) {
        setState(() {
          _geolocationStatus = GeolocationStatus.denied;
        });
        return Future.error('Location permissions are denied');
      }
    }

    if (permission == LocationPermission.deniedForever) {
      setState(() {
        _geolocationStatus = GeolocationStatus.permanentlyDenied;
      });
      return Future.error(
          'Location permissions are permanently denied, we cannot request permissions.');
    }

    setState(() {
      _geolocationStatus = GeolocationStatus.granted;
    });
    _getCurrentLocation();
  }

  Future<void> _getCurrentLocation() async {
    try {
      Position position = await GeolocationService.getCurrentPosition(
          desiredAccuracy: LocationAccuracy.high);
      setState(() {
        _currentPosition = position;
      });
    } catch (e) {
      print(e);
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Geolocation Example'),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              Text(
                'Geolocation Status: $_geolocationStatus',
                style: TextStyle(fontSize: 20),
              ),
              SizedBox(height: 20),
              if (_currentPosition != null)
                Text(
                  'Latitude: ${_currentPosition!.latitude}, Longitude: ${_currentPosition!.longitude}',
                  style: TextStyle(fontSize: 20),
                ),
            ],
          ),
        ),
      ),
    );
  }
}

enum GeolocationStatus { unknown, granted, denied, permanentlyDenied, disabled }

3. 运行应用

确保你的设备或模拟器具有位置服务权限，并且位置服务已启用。运行你的Flutter应用，你将看到应用请求位置权限，并在权限被授予后显示当前设备的经纬度。

这个示例展示了如何使用flutter_geolocation_service插件请求位置权限和获取当前位置。如果你需要持续监听位置变化，可以使用GeolocationService.getPositionStream()方法，该方法返回一个位置流，你可以监听这个流来获取设备位置的变化。