just_audio
This commit is contained in:
guozhigq
539
lib/pages/audio/view.dart
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539
lib/pages/audio/view.dart
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@ -0,0 +1,539 @@
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import 'dart:math';
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import 'package:audio_service/audio_service.dart';
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import 'package:audio_session/audio_session.dart';
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import 'package:flutter/material.dart';
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import 'package:just_audio/just_audio.dart';
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// import 'package:just_audio_background/just_audio_background.dart';
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class AudioPlayerPage extends StatefulWidget {
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const AudioPlayerPage({super.key});
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@override
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State<AudioPlayerPage> createState() => _AudioPlayerPageState();
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}
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class _AudioPlayerPageState extends State<AudioPlayerPage> {
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static int _nextMediaId = 0;
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late AudioPlayer _player;
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final _playlist = ConcatenatingAudioSource(children: [
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ClippingAudioSource(
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start: const Duration(seconds: 0),
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end: const Duration(seconds: 90),
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child: AudioSource.uri(Uri.parse(
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"https://s3.amazonaws.com/scifri-episodes/scifri20181123-episode.mp3")),
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tag: MediaItem(
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id: '${_nextMediaId++}',
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album: "Science Friday",
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title: "A Salute To Head-Scratching Science (30 seconds)",
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artUri: Uri.parse(
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"https://media.wnyc.org/i/1400/1400/l/80/1/ScienceFriday_WNYCStudios_1400.jpg"),
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),
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),
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// AudioSource.uri(
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// Uri.parse(
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// "https://upos-sz-mirror08c.bilivideo.com/upgcxcode/05/52/1205825205/1205825205-1-16.mp4?e=ig8euxZM2rNcNbRVhwdVhwdlhWdVhwdVhoNvNC8BqJIzNbfq9rVEuxTEnE8L5F6VnEsSTx0vkX8fqJeYTj_lta53NCM=&uipk=5&nbs=1&deadline=1693821903&gen=playurlv2&os=08cbv&oi=1865700872&trid=bfc9c19f85c545dd8f4794ff97f4f57fh&mid=17340771&platform=html5&upsig=9bf98515091bb8a80e1950a03a2a0d68&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&f=h_0_0&bw=49663&logo=80000000"),
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// headers: {
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// 'user-agent':
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// 'Mozilla/5.0 (Macintosh; Intel Mac OS X 13_3_1) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.4 Safari/605.1.15',
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// 'referer': 'https://www.bilibili.com'
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// },
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// tag: MediaItem(
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// id: '${_nextMediaId++}',
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// album: "Science Friday",
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// title: "A Salute To Head-Scratching Science",
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// artUri: Uri.parse(
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// "https://media.wnyc.org/i/1400/1400/l/80/1/ScienceFriday_WNYCStudios_1400.jpg"),
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// ),
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// ),
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AudioSource.uri(
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Uri.parse("https://s3.amazonaws.com/scifri-segments/scifri201711241.mp3"),
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tag: MediaItem(
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id: '${_nextMediaId++}',
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album: "Science Friday",
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title: "From Cat Rheology To Operatic Incompetence",
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artUri: Uri.parse(
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"https://media.wnyc.org/i/1400/1400/l/80/1/ScienceFriday_WNYCStudios_1400.jpg"),
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),
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),
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AudioSource.uri(
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Uri.parse("asset:///audio/nature.mp3"),
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tag: MediaItem(
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id: '${_nextMediaId++}',
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album: "Public Domain",
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title: "Nature Sounds",
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artUri: Uri.parse(
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"https://media.wnyc.org/i/1400/1400/l/80/1/ScienceFriday_WNYCStudios_1400.jpg"),
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),
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),
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]);
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@override
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void initState() {
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super.initState();
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_player = AudioPlayer();
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_init();
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}
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@override
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void dispose() {
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_player.dispose();
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super.dispose();
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}
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Future<void> _init() async {
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final session = await AudioSession.instance;
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await session.configure(const AudioSessionConfiguration.speech());
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// Listen to errors during playback.
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_player.playbackEventStream.listen((event) {},
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onError: (Object e, StackTrace stackTrace) {
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print('A stream error occurred: $e');
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});
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try {
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await _player.setAudioSource(_playlist);
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} catch (e, stackTrace) {
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// Catch load errors: 404, invalid url ...
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print("Error loading playlist: $e");
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print(stackTrace);
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}
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}
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// Stream<PositionData> get _positionDataStream =>
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// Rx.combineLatest3<Duration, Duration, Duration?, PositionData>(
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// _player.positionStream,
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// _player.bufferedPositionStream,
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// _player.durationStream,
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// (position, bufferedPosition, duration) => PositionData(
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// position, bufferedPosition, duration ?? Duration.zero));
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: SafeArea(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Expanded(
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child: StreamBuilder<SequenceState?>(
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stream: _player.sequenceStateStream,
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builder: (context, snapshot) {
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final state = snapshot.data;
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if (state?.sequence.isEmpty ?? true) {
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return const SizedBox();
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}
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final metadata = state!.currentSource!.tag as MediaItem;
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return Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Expanded(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: Center(
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child: Image.network(metadata.artUri.toString())),
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),
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),
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Text(metadata.album!,
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style: Theme.of(context).textTheme.titleLarge),
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Text(metadata.title),
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],
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);
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},
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),
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),
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ControlButtons(_player),
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// StreamBuilder<PositionData>(
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// stream: _positionDataStream,
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// builder: (context, snapshot) {
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// final positionData = snapshot.data;
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// return SeekBar(
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// duration: positionData?.duration ?? Duration.zero,
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// position: positionData?.position ?? Duration.zero,
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// bufferedPosition:
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// positionData?.bufferedPosition ?? Duration.zero,
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// onChangeEnd: (newPosition) {
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// _player.seek(newPosition);
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// },
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// );
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// },
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// ),
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const SizedBox(height: 8.0),
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Row(
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children: [
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StreamBuilder<LoopMode>(
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stream: _player.loopModeStream,
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builder: (context, snapshot) {
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final loopMode = snapshot.data ?? LoopMode.off;
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const icons = [
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Icon(Icons.repeat, color: Colors.grey),
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Icon(Icons.repeat, color: Colors.orange),
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Icon(Icons.repeat_one, color: Colors.orange),
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];
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const cycleModes = [
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LoopMode.off,
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LoopMode.all,
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LoopMode.one,
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];
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final index = cycleModes.indexOf(loopMode);
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return IconButton(
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icon: icons[index],
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onPressed: () {
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_player.setLoopMode(cycleModes[
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(cycleModes.indexOf(loopMode) + 1) %
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cycleModes.length]);
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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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child: Text(
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"Playlist",
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style: Theme.of(context).textTheme.titleLarge,
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textAlign: TextAlign.center,
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),
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),
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StreamBuilder<bool>(
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stream: _player.shuffleModeEnabledStream,
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builder: (context, snapshot) {
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final shuffleModeEnabled = snapshot.data ?? false;
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return IconButton(
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icon: shuffleModeEnabled
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? const Icon(Icons.shuffle, color: Colors.orange)
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: const Icon(Icons.shuffle, color: Colors.grey),
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onPressed: () async {
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final enable = !shuffleModeEnabled;
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if (enable) {
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await _player.shuffle();
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}
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await _player.setShuffleModeEnabled(enable);
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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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SizedBox(
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height: 240.0,
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child: StreamBuilder<SequenceState?>(
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stream: _player.sequenceStateStream,
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builder: (context, snapshot) {
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final state = snapshot.data;
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final sequence = state?.sequence ?? [];
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return ReorderableListView(
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onReorder: (int oldIndex, int newIndex) {
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if (oldIndex < newIndex) newIndex--;
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_playlist.move(oldIndex, newIndex);
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},
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children: [
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for (var i = 0; i < sequence.length; i++)
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Dismissible(
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key: ValueKey(sequence[i]),
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background: Container(
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color: Colors.redAccent,
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alignment: Alignment.centerRight,
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child: const Padding(
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padding: EdgeInsets.only(right: 8.0),
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child: Icon(Icons.delete, color: Colors.white),
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),
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),
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onDismissed: (dismissDirection) {
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_playlist.removeAt(i);
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},
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child: Material(
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color: i == state!.currentIndex
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? Colors.grey.shade300
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: null,
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child: ListTile(
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title: Text(sequence[i].tag.title as String),
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onTap: () {
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_player.seek(Duration.zero, index: i);
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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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),
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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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class ControlButtons extends StatelessWidget {
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final AudioPlayer player;
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const ControlButtons(this.player, {Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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IconButton(
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icon: const Icon(Icons.volume_up),
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onPressed: () {
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showSliderDialog(
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context: context,
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title: "Adjust volume",
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divisions: 10,
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min: 0.0,
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max: 1.0,
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stream: player.volumeStream,
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onChanged: player.setVolume,
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);
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},
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),
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StreamBuilder<SequenceState?>(
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stream: player.sequenceStateStream,
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builder: (context, snapshot) => IconButton(
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icon: const Icon(Icons.skip_previous),
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onPressed: player.hasPrevious ? player.seekToPrevious : null,
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),
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),
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StreamBuilder<PlayerState>(
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stream: player.playerStateStream,
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builder: (context, snapshot) {
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final playerState = snapshot.data;
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final processingState = playerState?.processingState;
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final playing = playerState?.playing;
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if (processingState == ProcessingState.loading ||
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processingState == ProcessingState.buffering) {
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return Container(
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margin: const EdgeInsets.all(8.0),
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width: 64.0,
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height: 64.0,
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child: const CircularProgressIndicator(),
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);
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} else if (playing != true) {
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return IconButton(
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icon: const Icon(Icons.play_arrow),
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iconSize: 64.0,
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onPressed: player.play,
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);
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} else if (processingState != ProcessingState.completed) {
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return IconButton(
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icon: const Icon(Icons.pause),
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iconSize: 64.0,
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onPressed: player.pause,
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);
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} else {
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return IconButton(
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icon: const Icon(Icons.replay),
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iconSize: 64.0,
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onPressed: () => player.seek(Duration.zero,
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index: player.effectiveIndices!.first),
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);
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}
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},
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),
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StreamBuilder<SequenceState?>(
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stream: player.sequenceStateStream,
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builder: (context, snapshot) => IconButton(
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icon: const Icon(Icons.skip_next),
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onPressed: player.hasNext ? player.seekToNext : null,
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),
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),
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StreamBuilder<double>(
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stream: player.speedStream,
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builder: (context, snapshot) => IconButton(
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icon: Text("${snapshot.data?.toStringAsFixed(1)}x",
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style: const TextStyle(fontWeight: FontWeight.bold)),
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onPressed: () {
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showSliderDialog(
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context: context,
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title: "Adjust speed",
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divisions: 10,
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min: 0.5,
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max: 1.5,
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stream: player.speedStream,
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onChanged: player.setSpeed,
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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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void showSliderDialog({
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required BuildContext context,
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required String title,
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required int divisions,
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required double min,
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required double max,
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String valueSuffix = '',
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required Stream<double> stream,
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required ValueChanged<double> onChanged,
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}) {
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showDialog<void>(
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context: context,
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builder: (context) => AlertDialog(
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title: Text(title, textAlign: TextAlign.center),
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content: StreamBuilder<double>(
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stream: stream,
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builder: (context, snapshot) => SizedBox(
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height: 100.0,
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child: Column(
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children: [
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Text('${snapshot.data?.toStringAsFixed(1)}$valueSuffix',
|
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style: const TextStyle(
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fontFamily: 'Fixed',
|
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fontWeight: FontWeight.bold,
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fontSize: 24.0)),
|
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Slider(
|
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divisions: divisions,
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min: min,
|
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max: max,
|
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value: snapshot.data ?? 1.0,
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onChanged: onChanged,
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),
|
||||
],
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),
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),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
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class PositionData {
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||||
final Duration position;
|
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final Duration bufferedPosition;
|
||||
final Duration duration;
|
||||
|
||||
PositionData(this.position, this.bufferedPosition, this.duration);
|
||||
}
|
||||
|
||||
class SeekBar extends StatefulWidget {
|
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final Duration duration;
|
||||
final Duration position;
|
||||
final Duration bufferedPosition;
|
||||
final ValueChanged<Duration>? onChanged;
|
||||
final ValueChanged<Duration>? onChangeEnd;
|
||||
|
||||
const SeekBar({
|
||||
Key? key,
|
||||
required this.duration,
|
||||
required this.position,
|
||||
required this.bufferedPosition,
|
||||
this.onChanged,
|
||||
this.onChangeEnd,
|
||||
}) : super(key: key);
|
||||
|
||||
@override
|
||||
SeekBarState createState() => SeekBarState();
|
||||
}
|
||||
|
||||
class SeekBarState extends State<SeekBar> {
|
||||
double? _dragValue;
|
||||
late SliderThemeData _sliderThemeData;
|
||||
|
||||
@override
|
||||
void didChangeDependencies() {
|
||||
super.didChangeDependencies();
|
||||
|
||||
_sliderThemeData = SliderTheme.of(context).copyWith(
|
||||
trackHeight: 2.0,
|
||||
);
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Stack(
|
||||
children: [
|
||||
SliderTheme(
|
||||
data: _sliderThemeData.copyWith(
|
||||
thumbShape: HiddenThumbComponentShape(),
|
||||
activeTrackColor: Colors.blue.shade100,
|
||||
inactiveTrackColor: Colors.grey.shade300,
|
||||
),
|
||||
child: ExcludeSemantics(
|
||||
child: Slider(
|
||||
min: 0.0,
|
||||
max: widget.duration.inMilliseconds.toDouble(),
|
||||
value: min(widget.bufferedPosition.inMilliseconds.toDouble(),
|
||||
widget.duration.inMilliseconds.toDouble()),
|
||||
onChanged: (value) {
|
||||
setState(() {
|
||||
_dragValue = value;
|
||||
});
|
||||
if (widget.onChanged != null) {
|
||||
widget.onChanged!(Duration(milliseconds: value.round()));
|
||||
}
|
||||
},
|
||||
onChangeEnd: (value) {
|
||||
if (widget.onChangeEnd != null) {
|
||||
widget.onChangeEnd!(Duration(milliseconds: value.round()));
|
||||
}
|
||||
_dragValue = null;
|
||||
},
|
||||
),
|
||||
),
|
||||
),
|
||||
SliderTheme(
|
||||
data: _sliderThemeData.copyWith(
|
||||
inactiveTrackColor: Colors.transparent,
|
||||
),
|
||||
child: Slider(
|
||||
min: 0.0,
|
||||
max: widget.duration.inMilliseconds.toDouble(),
|
||||
value: min(_dragValue ?? widget.position.inMilliseconds.toDouble(),
|
||||
widget.duration.inMilliseconds.toDouble()),
|
||||
onChanged: (value) {
|
||||
setState(() {
|
||||
_dragValue = value;
|
||||
});
|
||||
if (widget.onChanged != null) {
|
||||
widget.onChanged!(Duration(milliseconds: value.round()));
|
||||
}
|
||||
},
|
||||
onChangeEnd: (value) {
|
||||
if (widget.onChangeEnd != null) {
|
||||
widget.onChangeEnd!(Duration(milliseconds: value.round()));
|
||||
}
|
||||
_dragValue = null;
|
||||
},
|
||||
),
|
||||
),
|
||||
Positioned(
|
||||
right: 16.0,
|
||||
bottom: 0.0,
|
||||
child: Text(
|
||||
RegExp(r'((^0*[1-9]\d*:)?\d{2}:\d{2})\.\d+$')
|
||||
.firstMatch("$_remaining")
|
||||
?.group(1) ??
|
||||
'$_remaining',
|
||||
style: Theme.of(context).textTheme.bodySmall),
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
Duration get _remaining => widget.duration - widget.position;
|
||||
}
|
||||
|
||||
class HiddenThumbComponentShape extends SliderComponentShape {
|
||||
@override
|
||||
Size getPreferredSize(bool isEnabled, bool isDiscrete) => Size.zero;
|
||||
|
||||
@override
|
||||
void paint(
|
||||
PaintingContext context,
|
||||
Offset center, {
|
||||
required Animation<double> activationAnimation,
|
||||
required Animation<double> enableAnimation,
|
||||
required bool isDiscrete,
|
||||
required TextPainter labelPainter,
|
||||
required RenderBox parentBox,
|
||||
required SliderThemeData sliderTheme,
|
||||
required TextDirection textDirection,
|
||||
required double value,
|
||||
required double textScaleFactor,
|
||||
required Size sizeWithOverflow,
|
||||
}) {}
|
||||
}
|
||||
Reference in New Issue
Block a user