fpack 1.1.4

Package Flutter apps into release artifacts for every platform (apk, aab, ipa, dmg, exe, msix, deb, rpm, AppImage, web) with one command. Native Go core, thin Dart launcher.

example/lib/main.dart

import 'dart:convert';

import 'package:flutter/material.dart';

/// Compile-time values from `--dart-define-from-file config/<flavor>.json`
/// (set by `build.dart_define_from_file` in fpack.yaml).
const apiBase = String.fromEnvironment('API_BASE', defaultValue: 'not set');
const flavorName = String.fromEnvironment('FLAVOR_NAME', defaultValue: 'none');

/// Set by `build.dart_define` in fpack.yaml (from `${BUILD_CHANNEL}`).
const buildChannel = String.fromEnvironment(
  'BUILD_CHANNEL',
  defaultValue: 'local',
);

void main() => runApp(const AuroraApp());

class AuroraApp extends StatelessWidget {
  const AuroraApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Aurora Notes',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(colorSchemeSeed: Colors.indigo),
      darkTheme: ThemeData(
        colorSchemeSeed: Colors.indigo,
        brightness: Brightness.dark,
      ),
      home: const NotesPage(),
    );
  }
}

class Note {
  const Note(this.title, this.body);

  factory Note.fromJson(Map<String, dynamic> json) =>
      Note(json['title'] as String, json['body'] as String);

  final String title;
  final String body;
}

Future<List<Note>> loadNotes(AssetBundle bundle) async {
  final raw = jsonDecode(await bundle.loadString('assets/data/notes.json'));
  return [
    for (final n in raw as List) Note.fromJson(n as Map<String, dynamic>),
  ];
}

class NotesPage extends StatelessWidget {
  const NotesPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Aurora Notes')),
      body: FutureBuilder<List<Note>>(
        future: loadNotes(DefaultAssetBundle.of(context)),
        builder: (context, snap) => ListView(
          padding: const EdgeInsets.symmetric(vertical: 16),
          children: [
            Center(child: Image.asset('assets/images/logo.png', height: 96)),
            const SizedBox(height: 8),
            ListTile(
              leading: const Icon(Icons.tune),
              title: Text('Flavor: $flavorName · channel: $buildChannel'),
              subtitle: const Text('API: $apiBase'),
            ),
            const Divider(),
            for (final note in snap.data ?? const <Note>[])
              ListTile(
                leading: const Icon(Icons.sticky_note_2_outlined),
                title: Text(note.title),
                subtitle: Text(note.body),
              ),
          ],
        ),
      ),
    );
  }
}