How to Use Geolocator Plugin in Flutter

yaml
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"/>

<key>NSLocationWhenInUseUsageDescription</key>
<string>This app needs access to your location to provide better service.</string>

import 'package:geolocator/geolocator.dart';

Future<Position> _determinePosition() async {
  bool serviceEnabled;
  LocationPermission permission;

  serviceEnabled = await Geolocator.isLocationServiceEnabled();
  if (!serviceEnabled) {
    return Future.error('Location services are disabled.');
  }

  permission = await Geolocator.checkPermission();
  if (permission == LocationPermission.denied) {
    permission = await Geolocator.requestPermission();
    if (permission == LocationPermission.denied) {
      return Future.error('Location permissions are denied.');
    }
  }
  
  if (permission == LocationPermission.deniedForever) {
    return Future.error('Location permissions are permanently denied.');
  } 

  return await Geolocator.getCurrentPosition();
}

import 'package:flutter/material.dart';

class LocationScreen extends StatefulWidget {
  @override
  _LocationScreenState createState() => _LocationScreenState();
}

class _LocationScreenState extends State<LocationScreen> {
  String location = "Press the button to get location";

  void _getLocation() async {
    try {
      Position position = await _determinePosition();
      setState(() {
        location = "${position.latitude}, ${position.longitude}";
      });
    } catch (e) {
      setState(() {
        location = e.toString();
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("Geolocator Example")),
      body: Center(child: Text(location)),
      floatingActionButton: FloatingActionButton(
        onPressed: _getLocation,
        child: Icon(Icons.location_on),
      ),
    );
  }
}