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Android and iOS Geolocation plugin for Flutter

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Top Related Projects

Vector map library and writer - running on Android and Desktop.

Interactive, thoroughly customizable maps in native Android, iOS, macOS, Node.js, and Qt applications, powered by vector tiles and OpenGL

Java client library for Google Maps API Web Services

OpenStreetMap-Tools for Android

Quick Overview

The flutter-geolocator is a Flutter plugin that provides easy access to platform-specific location services. It allows developers to get the current location, track location changes, and calculate distances between coordinates. This plugin supports both Android and iOS platforms, making it a versatile solution for location-based Flutter applications.

Pros

  • Cross-platform compatibility (Android and iOS)
  • Easy-to-use API for accessing location services
  • Supports both one-time location requests and continuous location tracking
  • Provides additional features like distance calculation and geocoding

Cons

  • May have performance implications if not used carefully in background processes
  • Requires careful handling of permissions, which can be complex across different platforms
  • Limited support for web platforms
  • Dependency on platform-specific location services may lead to inconsistencies in behavior

Code Examples

  1. Getting the current position:
import 'package:geolocator/geolocator.dart';

Future<Position> getCurrentPosition() async {
  return await Geolocator.getCurrentPosition(
    desiredAccuracy: LocationAccuracy.high,
  );
}
  1. Listening to location updates:
import 'package:geolocator/geolocator.dart';

StreamSubscription<Position> positionStream = Geolocator.getPositionStream(
  locationSettings: LocationSettings(
    accuracy: LocationAccuracy.high,
    distanceFilter: 10,
  ),
).listen((Position position) {
  print(position.latitude);
  print(position.longitude);
});
  1. Calculating distance between two points:
import 'package:geolocator/geolocator.dart';

double calculateDistance(double startLatitude, double startLongitude, 
                         double endLatitude, double endLongitude) {
  return Geolocator.distanceBetween(
    startLatitude, startLongitude, endLatitude, endLongitude
  );
}

Getting Started

  1. Add the geolocator package to your pubspec.yaml:
dependencies:
  geolocator: ^9.0.0
  1. Import the package in your Dart code:
import 'package:geolocator/geolocator.dart';
  1. Request location permissions:
Future<void> requestPermission() async {
  LocationPermission permission = await Geolocator.requestPermission();
  if (permission == LocationPermission.denied) {
    // Handle denied permission
  }
}
  1. Use the geolocator functions as shown in the code examples above.

Competitor Comparisons

Vector map library and writer - running on Android and Desktop.

Pros of mapsforge

  • Native Java/Android library, offering better performance for Android apps
  • Supports offline mapping with vector map data
  • More customizable map rendering and styling options

Cons of mapsforge

  • Limited to Android platform, not cross-platform like flutter-geolocator
  • Steeper learning curve due to more complex API
  • Less frequent updates and smaller community compared to Flutter ecosystem

Code Comparison

mapsforge:

MapView mapView = new MapView(this);
mapView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
mapView.setClickable(true);
mapView.getMapScaleBar().setVisible(true);
mapView.setBuiltInZoomControls(true);

flutter-geolocator:

Position position = await Geolocator.getCurrentPosition(
    desiredAccuracy: LocationAccuracy.high);
print(position.latitude);
print(position.longitude);

Summary

mapsforge is a powerful library for Android developers looking for offline mapping capabilities and customizable rendering. However, flutter-geolocator offers cross-platform support and easier integration with Flutter apps. The choice between the two depends on the specific project requirements, target platforms, and developer expertise.

Interactive, thoroughly customizable maps in native Android, iOS, macOS, Node.js, and Qt applications, powered by vector tiles and OpenGL

Pros of mapbox-gl-native

  • Offers advanced mapping features and customization options
  • Provides high-performance vector maps with smooth rendering
  • Supports offline maps and custom map styles

Cons of mapbox-gl-native

  • Requires a Mapbox account and API key
  • Steeper learning curve due to more complex API
  • Larger package size and potential impact on app performance

Code Comparison

flutter-geolocator:

import 'package:geolocator/geolocator.dart';

Position position = await Geolocator.getCurrentPosition(
    desiredAccuracy: LocationAccuracy.high);
print(position.latitude);
print(position.longitude);

mapbox-gl-native:

import 'package:mapbox_gl/mapbox_gl.dart';

MapboxMapController controller = await MapboxMap(
  accessToken: 'YOUR_MAPBOX_ACCESS_TOKEN',
  onMapCreated: _onMapCreated,
  initialCameraPosition: CameraPosition(
    target: LatLng(37.7749, -122.4194),
    zoom: 11.0,
  ),
);

flutter-geolocator focuses on simple location services, while mapbox-gl-native provides comprehensive mapping capabilities. The former is easier to set up and use for basic location needs, while the latter offers more advanced features at the cost of increased complexity and setup requirements. Choose based on your project's specific mapping and location needs.

Java client library for Google Maps API Web Services

Pros of google-maps-services-java

  • More comprehensive API coverage for Google Maps services
  • Better suited for server-side Java applications
  • Extensive documentation and examples available

Cons of google-maps-services-java

  • Limited to Java, not cross-platform like Flutter
  • Requires more setup and configuration compared to flutter-geolocator
  • May have higher learning curve for mobile developers

Code Comparison

flutter-geolocator:

import 'package:geolocator/geolocator.dart';

Position position = await Geolocator.getCurrentPosition(
    desiredAccuracy: LocationAccuracy.high);

google-maps-services-java:

GeoApiContext context = new GeoApiContext.Builder()
    .apiKey("YOUR_API_KEY")
    .build();
GeocodingResult[] results = GeocodingApi.geocode(context, "1600 Amphitheatre Parkway").await();

The flutter-geolocator code is more concise and focused on getting the device's location, while google-maps-services-java requires more setup and is geared towards various Google Maps API services. flutter-geolocator is better suited for mobile app development, especially with Flutter, while google-maps-services-java is more appropriate for server-side Java applications that need to interact with Google Maps services.

OpenStreetMap-Tools for Android

Pros of osmdroid

  • Native Android library, offering better performance and integration with Android-specific features
  • Supports offline maps and custom tile sources
  • More extensive mapping features, including overlays, markers, and custom map projections

Cons of osmdroid

  • Limited to Android platform, not cross-platform like flutter-geolocator
  • Steeper learning curve due to more complex API and features
  • May require more setup and configuration compared to flutter-geolocator

Code Comparison

osmdroid:

MapView map = (MapView) findViewById(R.id.map);
map.setTileSource(TileSourceFactory.MAPNIK);
map.setBuiltInZoomControls(true);
map.setMultiTouchControls(true);
GeoPoint startPoint = new GeoPoint(51.5, -0.1);

flutter-geolocator:

import 'package:geolocator/geolocator.dart';

Position position = await Geolocator.getCurrentPosition(
    desiredAccuracy: LocationAccuracy.high);
print(position.latitude);
print(position.longitude);

The code snippets demonstrate that osmdroid focuses on map display and manipulation, while flutter-geolocator primarily deals with obtaining device location. osmdroid offers more control over map appearance and interaction, whereas flutter-geolocator provides a simpler API for accessing location data across multiple platforms.

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README

Flutter geolocator plugin

The Flutter geolocator plugin is built following the federated plugin architecture. A detailed explanation of the federated plugin concept can be found in the Flutter documentation. This means the geolocator plugin is separated into the following packages:

  1. geolocator: the app facing package. This is the package users depend on to use the plugin in their project. For details on how to use the geolocator plugin you can refer to its README.md file.
  2. geolocator_android: this package contains the endorsed Android implementation of the geolocator_platform_interface and adds Android support to the geolocator app facing package. More information can be found in its README.md file;
  3. geolocator_apple: this package contains the endorsed iOS and macOS implementations of the geolocator_platform_interface and adds iOS and macOS support to the geolocator app facing package. More information can be found in its README.md file;
  4. geolocator_web: this package contains the endorsed web implementation of the geolocator_platform_interface and adds web support to the geolocator app facing package. More information can be found in its README.md file;
  5. geolocator_windows: this package contains the endorsed Windows implementation of the geolocator_platform_interface and adds Windows support to the geolocator app facing package. More information can be found in its README.md file;
  6. geolocator_platform_interface: this package declares the interface which all platform packages must implement to support the app-facing package. Instructions on how to implement a platform package can be found in the README.md of the geolocator_platform_interface package.