Flutter Background Execution Sample - LocationBackgroundPlugin

An example Flutter plugin that showcases background execution using iOS location services.

Getting Started

NOTE: This plugin does not currently have an Android implementation.

To import, add the following to your Dart file:

import 'package:location_background/location_background.dart';

Example usage:

import 'package:location_background/location_background.dart';

final locationManager = LocationBackgroundPlugin();

void locationUpdateCallback(Location location) {
  print('Location Update: $location');
}

Future<void> startMonitoringLocationChanges() =>
    locationManager.monitorSignificantLocationChanges(locationUpdateCallback);
    
Future<void> stopMonitoringLocationChanges() =>
    locationManager.cancelLocationUpdates();

WARNING: do not maintain volatile state or perform long running operations in the location update callback. There is no guarantee from the system for how long a process can perform background processing after a location update, and the Dart isolate may shutdown during execution at the request of the system.

For help getting started with Flutter, view our online documentation.

For help on editing plugin code, view the documentation.

Libraries

location_background_plugin

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]