working media player on android

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

lib/main.dart

@@ -1,14 +1,35 @@
 import 'package:flutter/material.dart';
+import 'package:just_audio_background/just_audio_background.dart';
 
 import 'streaming_audio_business_object.dart';
 
-void main() {
+Future<void> main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  await JustAudioBackground.init(
+    androidNotificationChannelId: 'com.kryzgoflutter.audio.channel',
+    androidNotificationChannelName: 'KRYZ Audio Playback',
+    androidNotificationOngoing: true,
+  );
+
   runApp(const MyApp());
 }
 
-class MyApp extends StatelessWidget {
+class MyApp extends StatefulWidget {
   const MyApp({super.key});
 
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  final StreamingAudioBusinessObject _audio = StreamingAudioBusinessObject();
+
+  @override
+  void dispose() {
+    _audio.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
@@ -16,21 +37,23 @@ class MyApp extends StatelessWidget {
       theme: ThemeData(
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.blueGrey),
       ),
-      home: const MainPage(),
+      home: MainPage(audio: _audio),
       debugShowCheckedModeBanner: false,
     );
   }
 }
 
 class MainPage extends StatefulWidget {
-  const MainPage({super.key});
+  const MainPage({super.key, required this.audio});
+
+  final StreamingAudioBusinessObject audio;
 
   @override
   State<MainPage> createState() => _MainPageState();
 }
 
 class _MainPageState extends State<MainPage> {
-  final StreamingAudioBusinessObject _audio = StreamingAudioBusinessObject();
+  StreamingAudioBusinessObject get _audio => widget.audio;
 
   @override
   void initState() {
@@ -59,7 +82,6 @@ class _MainPageState extends State<MainPage> {
   @override
   void dispose() {
     _audio.removeListener(_handleAudioStateChanged);
-    _audio.dispose();
     super.dispose();
   }