Functioning music player features

Co-authored-by: Copilot <copilot@github.com>

.devcontainer/Dockerfile

@@ -7,11 +7,21 @@ RUN apt-get update && apt-get install -y \
     wget curl unzip git xz-utils zip libglu1-mesa openjdk-17-jdk\
     && rm -rf /var/lib/apt/lists/*
 
+# Become non-root
+ARG USERNAME=vscode
+ARG USER_UID=1000
+ARG USER_GID=1000
+
+ENV FLUTTER_VERSION=3.41.8
+ENV FLUTTER_HOME=/opt/flutter
+RUN groupadd --gid $USER_GID $USERNAME \
+ && useradd --uid $USER_UID --gid $USER_GID -m -s /bin/bash $USERNAME
+
+
 # Install Flutter
-RUN git clone https://github.com/flutter/flutter.git /opt/flutter \
+RUN git clone https://github.com/flutter/flutter.git ${FLUTTER_HOME} \
-    && cd /opt/flutter \
+    && cd ${FLUTTER_HOME} \
-    && git checkout $FLUTTER_VERSION \
+    && git checkout $FLUTTER_VERSION
-    && flutter precache --android
 
 # Set up Android SDK
 ENV ANDROID_HOME=/opt/android-sdk
@@ -23,4 +33,7 @@ RUN mkdir -p ${ANDROID_HOME}/cmdline-tools \
     && mv ${ANDROID_HOME}/cmdline-tools/cmdline-tools ${ANDROID_HOME}/cmdline-tools/latest \
     && rm commandlinetools.zip && yes | sdkmanager --licenses \
     && sdkmanager "platform-tools" "platforms;android-36" "build-tools;36.0.0"
-    # && chown -R node:node ${ANDROID_HOME}
+RUN chown -R 1000:1000 ${ANDROID_HOME} && chown -R 1000:1000 ${FLUTTER_HOME}
+
+USER $USERNAME
+ENV HOME=/home/$USERNAME

.devcontainer/devcontainer.json

@@ -6,15 +6,10 @@
   "customizations": {
     "vscode": {
       "extensions": [
-        "ms-vscode.vscode-typescript-next"
+        "ms-vscode.vscode-typescript-next",
-      ],
+        "dart-code.flutter"
-      "settings": {
+      ]
-        "terminal.integrated.defaultProfile.linux": "bash"
-      }
     }
   },
-  "postCreateCommand": "flutter doctor -v",
+  "postCreateCommand": "flutter doctor -v"
-  "mounts": [
+}
-    
-  ]
-}

android/gradle.properties

@@ -1,2 +1,6 @@
 org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
 android.useAndroidX=true
+# This builtInKotlin flag was added automatically by Flutter migrator
+android.builtInKotlin=false
+# This newDsl flag was added automatically by Flutter migrator
+android.newDsl=false

lib/main.dart

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

lib/streaming_audio_business_object.dart

@@ -0,0 +1,48 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:just_audio/just_audio.dart';
+
+class StreamingAudioBusinessObject extends ChangeNotifier {
+  StreamingAudioBusinessObject({
+    this.streamUrl = 'https://kryz.out.airtime.pro/kryz_a',
+  }) {
+    _playerStateSubscription = _player.playerStateStream.listen((state) {
+      final isCurrentlyPlaying =
+          state.playing && state.processingState != ProcessingState.completed;
+
+      if (_isPlaying != isCurrentlyPlaying) {
+        _isPlaying = isCurrentlyPlaying;
+        notifyListeners();
+      }
+    });
+  }
+
+  final String streamUrl;
+  final AudioPlayer _player = AudioPlayer();
+  late final StreamSubscription<PlayerState> _playerStateSubscription;
+  bool _isSourceLoaded = false;
+  bool _isPlaying = false;
+
+  bool get isPlaying => _isPlaying;
+
+  Future<void> play() async {
+    if (!_isSourceLoaded) {
+      await _player.setUrl(streamUrl);
+      _isSourceLoaded = true;
+    }
+
+    await _player.play();
+  }
+
+  Future<void> pause() async {
+    await _player.pause();
+  }
+
+  @override
+  void dispose() {
+    _playerStateSubscription.cancel();
+    _player.dispose();
+    super.dispose();
+  }
+}

linux/flutter/generated_plugins.cmake

@@ -6,6 +6,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  jni
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,6 +5,10 @@
 import FlutterMacOS
 import Foundation
 
+import audio_session
+import just_audio
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  AudioSessionPlugin.register(with: registry.registrar(forPlugin: "AudioSessionPlugin"))
+  JustAudioPlugin.register(with: registry.registrar(forPlugin: "JustAudioPlugin"))
 }

pubspec.yaml

@@ -34,6 +34,7 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
+  just_audio: ^0.10.5
 
 dev_dependencies:
   flutter_test:

windows/flutter/generated_plugins.cmake

@@ -6,6 +6,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  jni
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)