Fetch Current Location in Flutter

Nowadays, working with Maps and location is very common. In today’s blog will learn how to fetch current location in Flutter.

Using the Flutter Location plugin is very each to fetch the current location of the user on Android and iOS devices.

Read about the variety of Flutter App Development Services offered by Mobikul.

In this blog, we will show the map and display the current location using a marker.

Please follow below Steps to fetch current location in Flutter:

Step1: Add dependencies.

To fetch the current location we use location plugin

But in our project we have also displayed the map so we are using google_maps_flutter to display the map.

Add below code in pubspec.yaml file

  location: ^4.3.0
  google_maps_flutter: ^2.0.6

1 2	location: ^4.3.0 google_maps_flutter: ^2.0.6

Step2: Providing permissions in iOS and Android app to fetch location.

In Android all dependencies and permissions are automatically added to your project with flutter 1.12.

But if you are using Flutter before 1.12 please follow this.

For iOS please add below permissions in your info.plist file.

NSLocationWhenInUseUsageDescription
NSLocationAlwaysUsageDescription
NSLocationAlwaysAndWhenInUseUsageDescription

NSLocationWhenInUseUsageDescription

NSLocationAlwaysUsageDescription

NSLocationAlwaysAndWhenInUseUsageDescription

Step3: Implement Code

We have created a MapScreen class to show our Map and fetch the location.

Please check below function to fetch the location.

  void getLocation() async{
    var location = await currentLocation.getLocation();
    currentLocation.onLocationChanged.listen((LocationData loc){

      _controller?.animateCamera(CameraUpdate.newCameraPosition(new CameraPosition(
        target: LatLng(loc.latitude ?? 0.0,loc.longitude?? 0.0),
        zoom: 12.0,
      )));
      print(loc.latitude);
      print(loc.longitude);
      setState(() {
        _markers.add(Marker(markerId: MarkerId('Home'),
            position: LatLng(loc.latitude ?? 0.0, loc.longitude ?? 0.0)
        ));
      });
       });
  }

void getLocation() async{

var location = await currentLocation.getLocation();

currentLocation.onLocationChanged.listen((LocationData loc){

_controller?.animateCamera(CameraUpdate.newCameraPosition(new CameraPosition(

target: LatLng(loc.latitude ?? 0.0,loc.longitude?? 0.0),

zoom: 12.0,

)));

print(loc.latitude);

print(loc.longitude);

setState(() {

_markers.add(Marker(markerId: MarkerId('Home'),

position: LatLng(loc.latitude ?? 0.0, loc.longitude ?? 0.0)

));

});

}

Please check the complete MapScreen file code below.

import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:location/location.dart';



class MapScreen extends StatefulWidget {
  @override
  _MapScreenState createState() => _MapScreenState();
}

class _MapScreenState extends State<MapScreen> {
  GoogleMapController? _controller;
  Location currentLocation = Location();
  Set<Marker> _markers={};


  void getLocation() async{
    var location = await currentLocation.getLocation();
    currentLocation.onLocationChanged.listen((LocationData loc){

      _controller?.animateCamera(CameraUpdate.newCameraPosition(new CameraPosition(
        target: LatLng(loc.latitude ?? 0.0,loc.longitude?? 0.0),
        zoom: 12.0,
      )));
      print(loc.latitude);
      print(loc.longitude);
      setState(() {
        _markers.add(Marker(markerId: MarkerId('Home'),
            position: LatLng(loc.latitude ?? 0.0, loc.longitude ?? 0.0)
        ));
      });
       });
  }

  @override
  void initState(){
    super.initState();
    setState(() {
      getLocation();
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Map"),
      ),
      body: Container(
        height: MediaQuery.of(context).size.height,
        width: MediaQuery.of(context).size.width,
        child:GoogleMap(
          zoomControlsEnabled: false,
          initialCameraPosition:CameraPosition(
            target: LatLng(48.8561, 2.2930),
            zoom: 12.0,
          ),
          onMapCreated: (GoogleMapController controller){
            _controller = controller;
          },
          markers: _markers,
        ) ,
      ),
      floatingActionButton: FloatingActionButton(
        child: Icon(Icons.location_searching,color: Colors.white,),
        onPressed: (){
          getLocation();
        },
      ),
    );
  }
}

import 'package:flutter/material.dart';

import 'package:google_maps_flutter/google_maps_flutter.dart';

import 'package:location/location.dart';

class MapScreen extends StatefulWidget {

@override

_MapScreenState createState() => _MapScreenState();

}

class _MapScreenState extends State<MapScreen> {

GoogleMapController? _controller;

Location currentLocation = Location();

Set<Marker> _markers={};

void getLocation() async{

var location = await currentLocation.getLocation();

currentLocation.onLocationChanged.listen((LocationData loc){

_controller?.animateCamera(CameraUpdate.newCameraPosition(new CameraPosition(

target: LatLng(loc.latitude ?? 0.0,loc.longitude?? 0.0),

zoom: 12.0,

)));

print(loc.latitude);

print(loc.longitude);

setState(() {

_markers.add(Marker(markerId: MarkerId('Home'),

position: LatLng(loc.latitude ?? 0.0, loc.longitude ?? 0.0)

));

});

}

@override

void initState(){

super.initState();

setState(() {

getLocation();

});

}

@override

Widget build(BuildContext context) {

return Scaffold(

appBar: AppBar(

title: Text("Map"),

body: Container(

height: MediaQuery.of(context).size.height,

width: MediaQuery.of(context).size.width,

child:GoogleMap(

zoomControlsEnabled: false,

initialCameraPosition:CameraPosition(

target: LatLng(48.8561, 2.2930),

zoom: 12.0,

onMapCreated: (GoogleMapController controller){

_controller = controller;

markers: _markers,

) ,

floatingActionButton: FloatingActionButton(

child: Icon(Icons.location_searching,color: Colors.white,),

onPressed: (){

getLocation();

);

}

Now, check below main.dart file code.

import 'package:flutter/material.dart';

import 'MapScreen.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home:  MapScreen(),
    );
  }
}

import 'package:flutter/material.dart';

import 'MapScreen.dart';

void main() {

runApp(const MyApp());

}

class MyApp extends StatelessWidget {

const MyApp({Key? key}) : super(key: key);

@override

Widget build(BuildContext context) {

return MaterialApp(

debugShowCheckedModeBanner: false,

home: MapScreen(),

);

}

Finally, you can run the code, and see the below results.

For more interesting blogs check out here – https://mobikul.com/blog/

Hope this blog helped you for a better understanding of Location and Maps in flutter.

Thanks for reading

Shikha Melkani 28 April 2023

. . .

Discuss on Helpdesk

2 comments

Rohini Nov 11, 2021 at 1:31 pm

Pakka……. Working fine……

Shikha Melkani (Moderator) Nov 23, 2021 at 12:16 pm
Yes

Reply

Fetch Current Location in Flutter

Step1: Add dependencies.

Step2: Providing permissions in iOS and Android app to fetch location.

Step3: Implement Code

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