app_badger 3.1.2

A Flutter plugin to manage app badge counts on Android, iOS, and macOS with modern Swift Package Manager and federated architecture support.

example/lib/main.dart

import 'dart:async';

import 'package:app_badger/app_badger.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  final TextEditingController _channelIdController = TextEditingController();
  final TextEditingController _channelNameController = TextEditingController();
  final TextEditingController _smallIconController = TextEditingController();

  String _appBadgeSupported = 'Unknown';
  String _badgeStatus = '';
  String _permissionStatus = 'Checking...';
  bool _postNotification = true;
  int _count = 0;

  final List<String> _events = [];
  String _lastEvent = '—';
  StreamSubscription<dynamic>? _eventsSub;

  @override
  void initState() {
    super.initState();
    _initPlatformState();
    _eventsSub = AppBadgeController.events.listen((e) {
      setState(() {
        _events.add(e.toString());
        _lastEvent = e.toString();
      });
    }, onError: (_) {});
  }

  @override
  void dispose() {
    _eventsSub?.cancel();
    _channelIdController.dispose();
    _channelNameController.dispose();
    _smallIconController.dispose();
    super.dispose();
  }

  Future<void> _initPlatformState() async {
    try {
      final supported = await AppBadgeController.isFeatureSupported();
      final perm = await AppBadgeController.readPermissionStatus();
      setState(() {
        _appBadgeSupported = supported ? 'Yes' : 'No';
        _permissionStatus = perm.toString().split('.').last;
      });
    } on PlatformException {
      setState(() {
        _appBadgeSupported = 'Error';
        _permissionStatus = 'Error';
      });
    }
  }

  Future<void> _addBadge() async {
    try {
      _count++;
      await AppBadgeController.setBadgeValue(_count,
          postNotification: _postNotification,
          notificationChannelId: _channelIdController.text.isEmpty ? null : _channelIdController.text,
          notificationChannelName: _channelNameController.text.isEmpty ? null : _channelNameController.text,
          notificationSmallIcon: _smallIconController.text.isEmpty ? null : _smallIconController.text);
      setState(() {
        _badgeStatus = 'Badge set to $_count';
      });
    } on PlatformException {
      setState(() {
        _badgeStatus = 'Failed to set badge';
      });
    }
  }

  Future<void> _addBadgeNoNotification() async {
    try {
      _count++;
      await AppBadgeController.setBadgeValue(_count, postNotification: false);
      setState(() {
        _badgeStatus = 'Badge set to $_count (no notification)';
      });
    } on PlatformException {
      setState(() {
        _badgeStatus = 'Failed to set badge';
      });
    }
  }

  Future<void> _removeBadge() async {
    try {
      _count = 0;
      await AppBadgeController.clearBadgeValue();
      setState(() {
        _badgeStatus = 'Badge removed';
      });
    } on PlatformException {
      setState(() {
        _badgeStatus = 'Failed to remove badge';
      });
    }
  }

  Future<void> _openNotificationSettings() async {
    try {
      await AppBadgeController.openNotificationSettings();
    } on PlatformException {
      setState(() {
        _badgeStatus = 'Failed to open notification settings';
      });
    }
  }

  Future<void> _requestPermission() async {
    try {
      final granted = await AppBadgeController.requestBadgePermission();
      setState(() {
        _permissionStatus = granted ? 'granted' : 'denied';
        _badgeStatus = 'Permission request: ${granted ? 'Granted' : 'Denied'}';
      });
    } on PlatformException {
      setState(() {
        _badgeStatus = 'Failed to request notification permission';
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData(useMaterial3: true, colorSchemeSeed: Colors.indigo),
      home: Scaffold(
        appBar: AppBar(
          title: const Text('App Badger Example'),
          flexibleSpace: Container(
            decoration: const BoxDecoration(
              gradient: LinearGradient(colors: [Color(0xFF4F46E5), Color(0xFF0EA5A4)]),
            ),
          ),
        ),
        body: SafeArea(
          child: SingleChildScrollView(
            padding: const EdgeInsets.all(16),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.stretch,
              children: [
                Card(
                  child: Padding(
                    padding: const EdgeInsets.all(12),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text('Status', style: Theme.of(context).textTheme.titleLarge),
                        const SizedBox(height: 8),
                        Text('Badge supported: $_appBadgeSupported'),
                        const SizedBox(height: 4),
                        Text('Permission: $_permissionStatus'),
                        const SizedBox(height: 4),
                        Text('Last: $_badgeStatus'),
                      ],
                    ),
                  ),
                ),
                const SizedBox(height: 12),
                Card(
                  child: Padding(
                    padding: const EdgeInsets.all(12),
                    child: Wrap(
                      spacing: 8,
                      runSpacing: 8,
                      children: [
                        ElevatedButton.icon(
                          icon: const Icon(Icons.add),
                          label: const Text('Add (notify)'),
                          onPressed: _addBadge,
                        ),
                        OutlinedButton.icon(
                          icon: const Icon(Icons.add),
                          label: const Text('Add (no notify)'),
                          onPressed: _addBadgeNoNotification,
                        ),
                        ElevatedButton.icon(
                          icon: const Icon(Icons.delete),
                          label: const Text('Remove'),
                          onPressed: _removeBadge,
                        ),
                        ElevatedButton.icon(
                          icon: const Icon(Icons.security),
                          label: const Text('Request Permission'),
                          onPressed: _requestPermission,
                        ),
                        TextButton.icon(
                          icon: const Icon(Icons.settings),
                          label: const Text('Notification settings'),
                          onPressed: _openNotificationSettings,
                        ),
                        Row(mainAxisSize: MainAxisSize.min, children: [
                          const Text('Post notification'),
                          Switch(value: _postNotification, onChanged: (v) => setState(() => _postNotification = v))
                        ])
                      ],
                    ),
                  ),
                ),
                const SizedBox(height: 12),
                Card(
                  child: Padding(
                    padding: const EdgeInsets.all(12),
                    child: Column(children: [
                      TextField(controller: _channelIdController, decoration: const InputDecoration(labelText: 'Channel id (optional)')),
                      const SizedBox(height: 8),
                      TextField(controller: _channelNameController, decoration: const InputDecoration(labelText: 'Channel name (optional)')),
                      const SizedBox(height: 8),
                      TextField(controller: _smallIconController, decoration: const InputDecoration(labelText: 'Small icon drawable (optional)')),
                      const SizedBox(height: 8),
                      ElevatedButton(
                        onPressed: () {
                          AppBadgeController.setAndroidNotificationConfig(
                            channelId: _channelIdController.text.isEmpty ? null : _channelIdController.text,
                            channelName: _channelNameController.text.isEmpty ? null : _channelNameController.text,
                            smallIcon: _smallIconController.text.isEmpty ? null : _smallIconController.text,
                          );
                          setState(() {
                            _badgeStatus = 'Android notification config set';
                          });
                        },
                        child: const Text('Set Android defaults'),
                      )
                    ]),
                  ),
                ),
                const SizedBox(height: 12),
                Card(
                  child: Padding(
                    padding: const EdgeInsets.all(12),
                    child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
                      Text('Events', style: Theme.of(context).textTheme.titleMedium),
                      const SizedBox(height: 8),
                      Text('Last event: $_lastEvent'),
                      const SizedBox(height: 8),
                      SizedBox(
                        height: 160,
                        child: ListView.builder(
                          itemCount: _events.length,
                          itemBuilder: (context, idx) => Padding(
                            padding: const EdgeInsets.symmetric(vertical: 4),
                            child: Text(_events[idx]),
                          ),
                        ),
                      )
                    ]),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}