Trust Location

A Flutter plugin for detecting mock location on Android device.

Installation

Add trust_location as a dependency in your pubspec.yaml file

Permissions

Android

Add either the ACCESS_COARSE_LOCATION or the ACCESS_FINE_LOCATION permission to your Android Manifest. (located under android/app/src/main)

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

NOTE: This plugin uses the AndroidX version of the Android Support Libraries. Detailed instructions can be found here.

Usage

import 'package:trust_location/trust_location.dart';

/* Assuming in an async function */
/// query the current location.
LatLongPosition position = await TrustLocation.getLatLong;

/// check mock location on Android device.
bool isMockLocation = await TrustLocation.isMockLocation;

Example

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

import 'package:flutter/services.dart';
import 'package:trust_location/trust_location.dart';

import 'package:location_permissions/location_permissions.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
  String _latitude;
  String _longitude;
  bool _isMockLocation = false;
  Timer getLocationTimer;

  /// initialize state.
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
    requestLocationPermission();
    executeGetLocation();
  }

  /// calling get location every 5 seconds.
  void executeGetLocation() {
    getLocationTimer =
        Timer.periodic(Duration(seconds: 5), (Timer t) => _getLocation());
  }

  /// get location method, use a try/catch PlatformException.
  Future<void> _getLocation() async {
    LatLongPosition position;
    bool isMockLocation;
    try {
      /// query the current location.
      position = await TrustLocation.getLatLong;
      /// check mock location.
      isMockLocation = await TrustLocation.isMockLocation;
    } on PlatformException catch (e) {
      print('PlatformException $e');
    }
    setState(() {
      _latitude = position.latitude;
      _longitude = position.longitude;
      _isMockLocation = isMockLocation;
    });
  }

  /// request location permission at runtime.
  void requestLocationPermission() async {
    PermissionStatus permission =
        await LocationPermissions().requestPermissions();
    print('permissions: $permission');
  }

  /// check app state resume or inactive.
  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    if (state == AppLifecycleState.resumed) {
      executeGetLocation();
    }
    if (state == AppLifecycleState.inactive) {
      getLocationTimer.cancel();
    }
  }

  /// unregister the WidgetsBindingObserver.
  @override
  void dispose() {
    WidgetsBinding.instance.removeObserver(this);
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Trust Location Plugin'),
        ),
        body: Padding(
          padding: const EdgeInsets.all(20.0),
          child: Center(
              child: Column(
            children: <Widget>[
              Text('Mock Location: $_isMockLocation'),
              Text('Latitude: $_latitude, Longitude: $_longitude'),
            ],
          )),
        ),
      ),
    );
  }
}

Credit

Detecting the mock location: LocationAssistant

Issues

Please file any issues, bugs or feature request as an issue on our issues.

Contribute

If you would like to contribute to the plugin, send us your pull request.

License

This plugin is open source project and the license is BSD.

Libraries

trust_location