我在flutter上获取地理位置有问题

dependencies:
  flutter:
    sdk: flutter
  geolocator: ^9.0.2

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

<meta-data android:name="com.google.android.geo.API_KEY" android:value="YOUR_API_KEY"/>

<key>NSLocationWhenInUseUsageDescription</key>
<string>We need your location to provide better services.</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>We need your location to provide better services.</string>

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Geolocation Example'),
        ),
        body: Center(
          child: LocationWidget(),
        ),
      ),
    );
  }
}

class LocationWidget extends StatefulWidget {
  @override
  _LocationWidgetState createState() => _LocationWidgetState();
}

class _LocationWidgetState extends State<LocationWidget> {
  String _locationMessage = "";

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

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

    // 检查位置服务是否启用
    serviceEnabled = await Geolocator.isLocationServiceEnabled();
    if (!serviceEnabled) {
      setState(() {
        _locationMessage = "Location services are disabled.";
      });
      return;
    }

    // 检查位置权限
    permission = await Geolocator.checkPermission();
    if (permission == LocationPermission.denied) {
      permission = await Geolocator.requestPermission();
      if (permission == LocationPermission.denied) {
        setState(() {
          _locationMessage = "Location permissions are denied.";
        });
        return;
      }
    }

    if (permission == LocationPermission.deniedForever) {
      setState(() {
        _locationMessage = "Location permissions are permanently denied.";
      });
      return;
    }

    // 获取当前位置
    Position position = await Geolocator.getCurrentPosition(
        desiredAccuracy: LocationAccuracy.high);
    setState(() {
      _locationMessage =
          "Latitude: ${position.latitude}, Longitude: ${position.longitude}";
    });
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: <Widget>[
        Text(_locationMessage),
        ElevatedButton(
          onPressed: _getCurrentLocation,
          child: Text("Get Location"),
        ),
      ],
    );
  }
}