Just for error demonstration: https://github.com/ryanheise/just_audio/issues/759

example_radio.dart

// This is a minimal example demonstrating live streaming.
//
// To run:
//
// flutter run -t lib/example_radio.dart

import 'package:audio_session/audio_session.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:just_audio/just_audio.dart';
import 'package:just_audio_example/common.dart';

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

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  MyAppState createState() => MyAppState();
}

class MyAppState extends State<MyApp> with WidgetsBindingObserver {
  final _player = AudioPlayer(userAgent: 'myradioapp/1.0 (Linux;Android 11) https://myradioapp.com');

  @override
  void initState() {
    super.initState();
    ambiguate(WidgetsBinding.instance)!.addObserver(this);
    SystemChrome.setSystemUIOverlayStyle(const SystemUiOverlayStyle(
      statusBarColor: Colors.black,
    ));
    _init();
  }

  Future<void> _init() async {
    // Inform the operating system of our app's audio attributes etc.
    // We pick a reasonable default for an app that plays speech.
    final session = await AudioSession.instance;
    await session.configure(const AudioSessionConfiguration.speech());
    // Listen to errors during playback.
    _player.playbackEventStream.listen((event) {},
        onError: (Object e, StackTrace stackTrace) {
      print('A stream error occurred: $e');
    });
    // Try to load audio from a source and catch any errors.
    try {
      await _player.setAudioSource(AudioSource.uri(
          Uri.parse("http://stream.laut.fm/hitradio1")));
    } catch (e) {
      print("Error loading audio source: $e");
    }
  }

  @override
  void dispose() {
    ambiguate(WidgetsBinding.instance)!.removeObserver(this);
    // Release decoders and buffers back to the operating system making them
    // available for other apps to use.
    _player.dispose();
    super.dispose();
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    if (state == AppLifecycleState.paused) {
      // Release the player's resources when not in use. We use "stop" so that
      // if the app resumes later, it will still remember what position to
      // resume from.
      _player.stop();
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: SafeArea(
          child: SizedBox(
            width: double.maxFinite,
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.center,
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                StreamBuilder<IcyMetadata?>(
                  stream: _player.icyMetadataStream,
                  builder: (context, snapshot) {
                    final metadata = snapshot.data;
                    final title = metadata?.info?.title ?? '';
                    final url = metadata?.info?.url;
                    return Column(
                      children: [
                        if (url != null) Image.network(url),
                        Padding(
                          padding: const EdgeInsets.only(top: 8.0),
                          child: Text(title,
                              style: Theme.of(context).textTheme.headline6),
                        ),
                      ],
                    );
                  },
                ),
                // Display play/pause button and volume/speed sliders.
                ControlButtons(_player),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

/// Displays the play/pause button and volume/speed sliders.
class ControlButtons extends StatelessWidget {
  final AudioPlayer player;

  const ControlButtons(this.player, {Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisSize: MainAxisSize.min,
      children: [
        /// This StreamBuilder rebuilds whenever the player state changes, which
        /// includes the playing/paused state and also the
        /// loading/buffering/ready state. Depending on the state we show the
        /// appropriate button or loading indicator.
        StreamBuilder<PlayerState>(
          stream: player.playerStateStream,
          builder: (context, snapshot) {
            final playerState = snapshot.data;
            final processingState = playerState?.processingState;
            final playing = playerState?.playing;
            if (processingState == ProcessingState.loading ||
                processingState == ProcessingState.buffering) {
              return Container(
                margin: const EdgeInsets.all(8.0),
                width: 64.0,
                height: 64.0,
                child: const CircularProgressIndicator(),
              );
            } else if (playing != true) {
              return IconButton(
                icon: const Icon(Icons.play_arrow),
                iconSize: 64.0,
                onPressed: player.play,
              );
            } else if (processingState != ProcessingState.completed) {
              return IconButton(
                icon: const Icon(Icons.pause),
                iconSize: 64.0,
                onPressed: player.pause,
              );
            } else {
              return IconButton(
                icon: const Icon(Icons.replay),
                iconSize: 64.0,
                onPressed: () => player.seek(Duration.zero),
              );
            }
          },
        ),
      ],
    );
  }
}