flutter_location 0.0.4

A new flutter plugin project.

Flutter Location Plugin

A Flutter plugin to provide native location.

WARN: This plugin was written in swift/kotlin to be able to use it, you should have create the project with:

    flutter create -i swift -a kotlin project_name

Getting Started

For help getting started with Flutter, view our online documentation. For help on editing plugin code, view the documentation.

Add the dependency to your pubspec.yaml file.

dependencies:
  flutter_location: ^0.0.4

In order to be able to receive location information from an iOS device, you need to modify the Info.plist, and add:

<key>NSLocationWhenInUseUsageDescription</key>
<string>This message will be display to the user</string>

Then import the publin in your code:

import 'package:flutter_location/flutter_location.dart'; // Plugin
import 'package:flutter_location/permission.dart'; // Return type
import 'package:flutter_location/location.dart'; // Return type

Look into the example for utilisation, but a basic implementation can be done like this for a one time location:

Location _location;
Location _currentLocation;
@override
void initState() {
    super.initState();
    initLocation();
}
Future<void> initLocation() async {
    try {
      await _initLocation();
    } on PlatformException catch (e) {
      print('Location initialization errror: ${e.message}');
    }
}
Future<void> _initLocation() async {
    Permission locationPermission;
    //  FlutterLocation.permissionLevel can throw PlatformException
    locationPermission = await FlutterLocation.permissionLevel;
    if (locationPermission == Permission.NOT_DETERMINED) {
      // Waiting for the user to authorized or denied permission
      return await Future.delayed(_waitForUser, _initLocation);
    }
    if (locationPermission == Permission.DENIED || !mounted) {
      // nothing to do here
      return;
    }
    Location location = await FlutterLocation.location;
    setState(() => _location = location);
    FlutterLocation.onLocationChanged.listen(
      (location) {
        print('Current location changes to: $location');
        setState(() => _currentLocation = location);
      },
    );
}

For more examples checkout:

• Madrid Bike app
• Flutter location example

API

Methods	Description
Future	Get the level of permission the user has granted to the app (NOT_DETERMINED, DENIED, AUTHORIZED).
Future	Get the location of the user.
Stream	Get the stream of the user's location.

Model

Permission:

• NOT_DETERMINED: Permission not specified
• DENIED: The user rejected the authorization
• AUTHORIZED: The user granted permission to use location

Location {

• double latitude
• double longitude
• double accuracy, right now set it to horizontal accuracy
• double altitude
• double speed