Flutter App Badger plugin

This plugin for Flutter adds the ability to change the badge of the app in the launcher. It supports iOS and some Android devices (the official API does not support the feature, even on Oreo).

Android badge

Android badge

Getting Started

iOS

On iOS, the notification permission is required to update the badge. It is automatically asked when the badge is added or removed.

Please also add the following to your Info.plist:

<key>UIBackgroundModes</key>
    <array>
        <string>remote-notification</string>
    </array>

Android

On Android, no official API exists to show a badge in the launcher. But some devices (Samsung, HTC...) support the feature. Thanks to the Shortcut Badger library, ~ 16 launchers are supported.

Dart

First, you just have to import the package in your dart files with:

import 'package:flutterappbadger/flutterappbadger.dart';

Then you can add a badge:

FlutterAppBadger.updateBadgeCount(1);

Remove a badge:

FlutterAppBadger.removeBadge();

Or just check if the device supports this feature with:

FlutterAppBadger.isAppBadgeSupported();

Libraries

flutter_app_badger

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. [...]