voice_audio 0.3.1

voice_audio: ^0.3.1 copied to clipboard

example/lib/main.dart

/// Demo and on-device test app for `voice_audio`.
///
/// Two halves, because the package needs both kinds of testing:
///
///   * **Memos** — a small but real voice memo app. Record with a live meter, a list with
///     durations and waveforms, play with pause and scrub, export, pick a device. This is how
///     you find out whether the audio *sounds* right, which no assertion can tell you.
///   * **Checks** — the same API driven by about twenty assertions, run on the device. The C++
///     and Dart suites run on a desktop against a null or PortAudio backend; a phone is AAudio,
///     a different codec build and a real microphone, and none of that is reachable from a CI
///     machine. So the checks travel with the app.
///
/// Built for Linux and Android. The package supports macOS, Windows and iOS too, but those
/// have not been compiled — see the README.
library;

import 'package:flutter/material.dart';
import 'package:voice_audio/voice_audio.dart';

import 'checks_page.dart';
import 'memo_page.dart';

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

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

  @override
  Widget build(BuildContext context) => MaterialApp(
    title: 'voice_audio',
    theme: ThemeData(colorSchemeSeed: Colors.indigo, useMaterial3: true),
    darkTheme: ThemeData(
      colorSchemeSeed: Colors.indigo,
      brightness: Brightness.dark,
      useMaterial3: true,
    ),
    home: const Home(),
  );
}

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

  @override
  State<Home> createState() => _HomeState();
}

class _HomeState extends State<Home> {
  int _tab = 0;

  @override
  void dispose() {
    // One engine for the whole app: one capture thread, one playback stream. It is brought up
    // by whichever page needs it first and put down here, once.
    VoiceAudio.instance.shutdown();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: IndexedStack(
        index: _tab,
        children: const [MemoPage(), ChecksPage()],
      ),
      bottomNavigationBar: NavigationBar(
        selectedIndex: _tab,
        onDestinationSelected: (index) => setState(() => _tab = index),
        destinations: const [
          NavigationDestination(
            icon: Icon(Icons.mic_none),
            selectedIcon: Icon(Icons.mic),
            label: 'Memos',
          ),
          NavigationDestination(
            icon: Icon(Icons.fact_check_outlined),
            selectedIcon: Icon(Icons.fact_check),
            label: 'Checks',
          ),
        ],
      ),
    );
  }
}