在Flutter应用程序中作为后台任务在辅助隔离中获取地理位置

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_background_geolocation/flutter_background_geolocation.dart' as bg;
import 'package:location/location.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Background Location',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  Location location = Location();
  StreamSubscription<LocationData> locationSubscription;

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

  @override
  void dispose() {
    stopBackgroundTask();
    super.dispose();
  }

  void startBackgroundTask() async {
    await bg.BackgroundGeolocation.initialize(
      bg.Config(
        desiredAccuracy: bg.Config.DESIRED_ACCURACY_HIGH,
        distanceFilter: 10.0,
        stopOnTerminate: false,
        startOnBoot: true,
      ),
    );

    await bg.BackgroundGeolocation.start();

    locationSubscription = location.onLocationChanged.listen((locationData) {
      // 处理获取到的地理位置信息
      print('Latitude: ${locationData.latitude}');
      print('Longitude: ${locationData.longitude}');
    });
  }

  void stopBackgroundTask() async {
    await bg.BackgroundGeolocation.stop();
    locationSubscription.cancel();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Background Location'),
      ),
      body: Center(
        child: Text('Background Location'),
      ),
    );
  }
}