Functioning music player features
Co-authored-by: Copilot <copilot@github.com>
This commit is contained in:
Copilot
+79
-83
@@ -1,5 +1,7 @@
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import 'package:flutter/material.dart';
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import 'streaming_audio_business_object.dart';
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void main() {
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runApp(const MyApp());
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}
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@@ -7,116 +9,110 @@ void main() {
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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// This widget is the root of your application.
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Flutter Demo',
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title: 'Split Screen Player',
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theme: ThemeData(
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// This is the theme of your application.
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//
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// TRY THIS: Try running your application with "flutter run". You'll see
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// the application has a purple toolbar. Then, without quitting the app,
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// try changing the seedColor in the colorScheme below to Colors.green
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// and then invoke "hot reload" (save your changes or press the "hot
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// reload" button in a Flutter-supported IDE, or press "r" if you used
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// the command line to start the app).
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//
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// Notice that the counter didn't reset back to zero; the application
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// state is not lost during the reload. To reset the state, use hot
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// restart instead.
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//
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// This works for code too, not just values: Most code changes can be
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// tested with just a hot reload.
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colorScheme: .fromSeed(seedColor: Colors.deepPurple),
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.blueGrey),
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),
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home: const MyHomePage(title: 'Flutter Demo Home Page'),
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home: const MainPage(),
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debugShowCheckedModeBanner: false,
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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// This widget is the home page of your application. It is stateful, meaning
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// that it has a State object (defined below) that contains fields that affect
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// how it looks.
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// This class is the configuration for the state. It holds the values (in this
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// case the title) provided by the parent (in this case the App widget) and
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// used by the build method of the State. Fields in a Widget subclass are
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// always marked "final".
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final String title;
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class MainPage extends StatefulWidget {
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const MainPage({super.key});
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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State<MainPage> createState() => _MainPageState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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int _counter = 0;
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class _MainPageState extends State<MainPage> {
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final StreamingAudioBusinessObject _audio = StreamingAudioBusinessObject();
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@override
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void initState() {
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super.initState();
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_audio.addListener(_handleAudioStateChanged);
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}
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void _handleAudioStateChanged() {
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if (!mounted) {
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return;
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}
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void _incrementCounter() {
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setState(() {
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// This call to setState tells the Flutter framework that something has
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// changed in this State, which causes it to rerun the build method below
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// so that the display can reflect the updated values. If we changed
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// _counter without calling setState(), then the build method would not be
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// called again, and so nothing would appear to happen.
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_counter++;
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// Rebuild when playback state changes from the player.
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});
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}
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Future<void> _play() async {
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await _audio.play();
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}
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Future<void> _stop() async {
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await _audio.pause();
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}
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@override
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void dispose() {
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_audio.removeListener(_handleAudioStateChanged);
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_audio.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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// This method is rerun every time setState is called, for instance as done
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// by the _incrementCounter method above.
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//
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// The Flutter framework has been optimized to make rerunning build methods
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// fast, so that you can just rebuild anything that needs updating rather
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// than having to individually change instances of widgets.
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return Scaffold(
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appBar: AppBar(
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// TRY THIS: Try changing the color here to a specific color (to
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// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
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// change color while the other colors stay the same.
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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// Here we take the value from the MyHomePage object that was created by
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// the App.build method, and use it to set our appbar title.
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title: Text(widget.title),
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),
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body: Center(
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// Center is a layout widget. It takes a single child and positions it
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// in the middle of the parent.
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body: SafeArea(
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child: Column(
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// Column is also a layout widget. It takes a list of children and
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// arranges them vertically. By default, it sizes itself to fit its
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// children horizontally, and tries to be as tall as its parent.
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//
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// Column has various properties to control how it sizes itself and
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// how it positions its children. Here we use mainAxisAlignment to
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// center the children vertically; the main axis here is the vertical
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// axis because Columns are vertical (the cross axis would be
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// horizontal).
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//
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// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
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// action in the IDE, or press "p" in the console), to see the
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// wireframe for each widget.
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mainAxisAlignment: .center,
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children: [
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const Text('You have pushed the button this many times:'),
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Text(
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'$_counter',
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style: Theme.of(context).textTheme.headlineMedium,
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Expanded(
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flex: 9,
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child: Padding(
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padding: const EdgeInsets.all(12),
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child: Container(
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width: double.infinity,
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decoration: BoxDecoration(
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border: Border.all(color: Colors.black26, width: 2),
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borderRadius: BorderRadius.circular(8),
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color: Colors.white,
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),
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),
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),
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),
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Expanded(
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flex: 1,
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child: Container(
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width: double.infinity,
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padding: const EdgeInsets.symmetric(horizontal: 16),
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color: Colors.black87,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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ElevatedButton(
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onPressed: _audio.isPlaying ? null : _play,
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child: const Text('Play'),
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),
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const SizedBox(width: 12),
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ElevatedButton(
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onPressed: _audio.isPlaying ? _stop : null,
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child: const Text('Stop'),
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),
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const SizedBox(width: 16),
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Text(
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_audio.isPlaying ? 'Playing' : 'Stopped',
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style: const TextStyle(color: Colors.white),
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),
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],
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),
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),
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),
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],
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),
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _incrementCounter,
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tooltip: 'Increment',
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child: const Icon(Icons.add),
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),
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);
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}
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}
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@@ -0,0 +1,48 @@
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import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:just_audio/just_audio.dart';
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class StreamingAudioBusinessObject extends ChangeNotifier {
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StreamingAudioBusinessObject({
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this.streamUrl = 'https://kryz.out.airtime.pro/kryz_a',
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}) {
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_playerStateSubscription = _player.playerStateStream.listen((state) {
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final isCurrentlyPlaying =
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state.playing && state.processingState != ProcessingState.completed;
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if (_isPlaying != isCurrentlyPlaying) {
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_isPlaying = isCurrentlyPlaying;
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notifyListeners();
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}
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});
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}
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final String streamUrl;
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final AudioPlayer _player = AudioPlayer();
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late final StreamSubscription<PlayerState> _playerStateSubscription;
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bool _isSourceLoaded = false;
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bool _isPlaying = false;
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bool get isPlaying => _isPlaying;
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Future<void> play() async {
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if (!_isSourceLoaded) {
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await _player.setUrl(streamUrl);
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_isSourceLoaded = true;
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}
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await _player.play();
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}
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Future<void> pause() async {
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await _player.pause();
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}
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@override
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void dispose() {
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_playerStateSubscription.cancel();
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_player.dispose();
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super.dispose();
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}
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}
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