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import 'dart:async';
import 'dart:io';
import 'package:path/path.dart' as path;
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:just_audio/just_audio.dart';
import 'package:music_player_miao/common_widget/app_data.dart';
import 'package:music_player_miao/models/universal_bean.dart';
import '../../view_model/home_view_model.dart';
import '../api/api_download.dart';
import '../api/api_music_likes.dart';
import '../common_widget/Song_widegt.dart';
class MusicView extends StatefulWidget {
final List<Song> songList;
final int initialSongIndex;
const MusicView({
super.key,
required this.songList,
required this.initialSongIndex
});
@override
State<MusicView> createState() => _MusicViewState();
}
class _MusicViewState extends State<MusicView> {
final homeVM = Get.put(HomeViewModel());
bool _isDisposed = false;
AppData appData = AppData();
late int currentSongIndex;
late AudioPlayer _audioPlayer;
double _downloadProgress = 0.0;
bool _isDownloading = false;
bool _isDownloaded = false;
// Stream values
Duration _duration = Duration.zero;
Duration _position = Duration.zero;
// Current song info
late String artistName;
late String musicName;
late bool likesnot;
late bool collectionsnot;
// Song lists
List<int> id = [];
List<String> song2 = [];
List<String> artist = [];
List<String> music = [];
List<bool> likes = [];
List<bool> collection = [];
bool _isLoading = false;
double _bufferProgress = 0.0;
Future<void> _fetchSonglistData() async {
setState(() {
for (int i = 0; i < widget.songList.length; i++) {
id.add(widget.songList[i].id);
song2.add(widget.songList[i].musicurl);
artist.add(widget.songList[i].artist);
music.add(widget.songList[i].title);
likes.add(widget.songList[i].likes);
collection.add(widget.songList[i].collection);
}
});
}
String _getFileExtension(String url) {
// Remove query parameters
final urlWithoutQuery = url.split('?').first;
// Get the extension including the dot
final extension = path.extension(urlWithoutQuery);
return extension.isNotEmpty ? extension : '.mp3'; // Default to .mp3 if no extension found
}
Future<String?> _getLocalAudioPath() async {
if (!_isDownloaded) return null;
final fileName = '${id[currentSongIndex]}_${music[currentSongIndex]}_${artist[currentSongIndex]}';
final extension = _getFileExtension(song2[currentSongIndex]);
final fullFileName = '$fileName$extension';
return path.join('/storage/emulated/0/MTMusic', fullFileName);
}
Future<void> _checkIfDownloaded() async {
try {
final fileName = '${id[currentSongIndex]}_${music[currentSongIndex]}_${artist[currentSongIndex]}';
final directory = Directory('/storage/emulated/0/MTMusic');
if (await directory.exists()) {
final files = directory.listSync();
final isExists = files.any((file) {
final name = path.basename(file.path);
return name.startsWith(fileName);
});
if (mounted) {
setState(() {
_isDownloaded = isExists;
_isDownloading = false;
_downloadProgress = 0.0;
});
}
} else {
if (mounted) {
setState(() {
_isDownloaded = false;
_isDownloading = false;
_downloadProgress = 0.0;
});
}
}
} catch (e) {
print('Error checking downloaded file: $e');
if (mounted) {
setState(() {
_isDownloaded = false;
_isDownloading = false;
_downloadProgress = 0.0;
});
}
}
}
Future<void> _updateCurrentSong() async {
// 立即更新UI和歌曲信息
setState(() {
_isLoading = true;
_position = Duration.zero;
_duration = Duration.zero;
artistName = artist[currentSongIndex];
musicName = music[currentSongIndex];
likesnot = likes[currentSongIndex];
collectionsnot = collection[currentSongIndex];
});
// 异步检查下载状态
await _checkIfDownloaded();
try {
// 在后台停止当前播放
unawaited(_audioPlayer.stop());
// Check for local file first
final localPath = await _getLocalAudioPath();
final audioSource = localPath != null
? AudioSource.file(localPath)
: AudioSource.uri(Uri.parse(song2[currentSongIndex]));
print("-------------" + audioSource.uri.toString());
// Set the audio source and get duration
final duration = await _audioPlayer.setAudioSource(
audioSource,
preload: true,
);
if (!_isDisposed) {
setState(() {
_duration = duration ?? Duration.zero;
_isLoading = false;
});
}
// 开始播放
await _audioPlayer.play();
} catch (e) {
print('Error loading audio source: $e');
if (!_isDisposed) {
setState(() {
_isLoading = false;
});
}
}
}
void playerInit() {
_audioPlayer = AudioPlayer();
currentSongIndex = widget.initialSongIndex;
// Initialize with first song
artistName = widget.songList[widget.initialSongIndex].artist;
musicName = widget.songList[widget.initialSongIndex].title;
likesnot = widget.songList[widget.initialSongIndex].likes;
collectionsnot = widget.songList[widget.initialSongIndex].collection;
// Listen to player events
_audioPlayer.positionStream.listen((position) {
if (!_isDisposed) {
setState(() => _position = position);
}
});
_audioPlayer.durationStream.listen((duration) {
if (!_isDisposed) {
setState(() => _duration = duration ?? Duration.zero);
}
});
_audioPlayer.processingStateStream.listen((state) {
if (state == ProcessingState.completed) {
playNextSong();
}
});
}
Widget _buildPlayButton() {
return SizedBox(
width: 52,
height: 52,
child: Center(
child: _isLoading
? const CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation<Color>(Color(0xff429482)),
strokeWidth: 3.0,
)
: IconButton(
padding: EdgeInsets.zero, // 移除内边距
constraints: const BoxConstraints(
minWidth: 52,
minHeight: 52,
maxWidth: 52,
maxHeight: 52,
),
onPressed: playOrPause,
icon: _audioPlayer.playing
? Image.asset(
"assets/img/music_play.png",
width: 52,
height: 52,
)
: Image.asset(
"assets/img/music_pause.png",
width: 52,
height: 52,
),
),
),
);
}
void _initBufferingListener() {
_audioPlayer.bufferedPositionStream.listen((bufferedPosition) {
if (!_isDisposed) {
final bufferProgress = _duration.inMilliseconds > 0
? bufferedPosition.inMilliseconds / _duration.inMilliseconds
: 0.0;
setState(() {
_bufferProgress = bufferProgress;
});
}
});
}
void playOrPause() async {
if (_audioPlayer.playing) {
await _audioPlayer.pause();
} else {
await _audioPlayer.play();
}
setState(() {});
}
void playNextSong() {
if (currentSongIndex < widget.songList.length - 1) {
currentSongIndex++;
} else {
currentSongIndex = 0;
}
_updateCurrentSong();
}
void playPreviousSong() {
if (currentSongIndex > 0) {
currentSongIndex--;
} else {
currentSongIndex = widget.songList.length - 1;
}
_updateCurrentSong();
}
String formatDuration(Duration duration) {
String twoDigits(int n) => n.toString().padLeft(2, "0");
String twoDigitMinutes = twoDigits(duration.inMinutes.remainder(60));
String twoDigitSeconds = twoDigits(duration.inSeconds.remainder(60));
return "$twoDigitMinutes:$twoDigitSeconds";
}
Future<void> _initializeAsync() async {
await _fetchSonglistData();
await _updateCurrentSong();
}
@override
void initState() {
super.initState();
playerInit();
_initBufferingListener();
_initializeAsync();
}
@override
void dispose() {
_isDisposed = true;
_audioPlayer.dispose();
super.dispose();
}
void _changeCurrentSong(int index) {
if (!_isDisposed) {
setState(() {
currentSongIndex = index;
_updateCurrentSong();
});
}
}
@override
Widget build(BuildContext context) {
return Container(
decoration: const BoxDecoration(
image: DecorationImage(
image: AssetImage("assets/img/app_bg.png"),
fit: BoxFit.cover,
),
),
child: Scaffold(
resizeToAvoidBottomInset: false,
backgroundColor: Colors.transparent,
body: SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.only(top: 45, left: 10, right: 10),
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
IconButton(
onPressed: () {
Get.back();
},
icon: Image.asset(
"assets/img/back.png",
width: 25,
height: 25,
fit: BoxFit.contain,
),
),
Row(
children: [
IconButton(
onPressed: () {},
icon: Image.asset(
"assets/img/music_add.png",
width: 30,
height: 30,
),
),
IconButton(
onPressed: _isDownloading || _isDownloaded ? null: () async {
setState(() {
_isDownloading = true;
_downloadProgress = 0;
});
final downloadApi = DownloadApi();
final fileName = '${id[currentSongIndex]}_${music[currentSongIndex]}_${artist[currentSongIndex]}';
final filePath = await downloadApi.downloadMusic(
musicUrl: song2[currentSongIndex],
name: fileName,
context: context,
onProgress: (progress) { // 添加进度回调
setState(() {
_downloadProgress = progress;
});
},
);
setState(() {
_isDownloading = false;
});
if (filePath != null) {
setState(() {
_isDownloaded = true;
});
}
},
icon: _isDownloading
? Stack(
alignment: Alignment.center,
children: [
SizedBox(
width: 32,
height: 32,
child: CircularProgressIndicator(
value: _downloadProgress,
backgroundColor: Colors.grey[200],
valueColor: AlwaysStoppedAnimation<Color>(Color(0xff429482)),
strokeWidth: 3.0,
),
),
Text(
'${(_downloadProgress * 100).toInt()}',
style: TextStyle(fontSize: 12),
),
],
)
: Image.asset(
_isDownloaded
? "assets/img/music_download_completed.png" // 已下载显示完成图标
: "assets/img/music_download.png", // 未下载显示下载图标
width: 30,
height: 30,
),
),
],
)
],
),
const SizedBox(
height: 80,
),
Center(
child: Stack(
alignment: Alignment.center,
children: [
ClipRRect(
borderRadius: BorderRadius.circular(10),
child: Image.asset(
"assets/img/music_Ellipse.png",
width: 320,
height: 320,
fit: BoxFit.cover,
),
),
Positioned(
child: ClipRRect(
borderRadius: BorderRadius.circular(80),
child: Image.network(
widget.songList[currentSongIndex].artistPic,
width: 230,
height: 230,
fit: BoxFit.cover,
),
),
)
],
),
),
const SizedBox(
height: 60,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
musicName,
style: const TextStyle(
fontSize: 20, fontWeight: FontWeight.bold),
),
Text(
artistName,
style: const TextStyle(fontSize: 20),
),
],
),
Row(
children: [
IconButton(
onPressed: () async{
UniversalBean bean1 =
await LikesApiMusic().likesMusic(musicId: currentSongIndex+1, Authorization: AppData().currentToken);
setState(() {
likesnot = !likesnot;
});
},
icon: Image.asset(
likesnot
? "assets/img/music_good.png"
: "assets/img/music_good_un.png",
width: 29,
height: 29,
),
),
IconButton(
onPressed: () {
setState(() {
collectionsnot = !collectionsnot;
});
},
icon: Image.asset(
collectionsnot
? "assets/img/music_star.png"
: "assets/img/music_star_un.png",
width: 29,
height: 29,
),
),
IconButton(
onPressed: () {
Image.asset("assets/img/music_good.png");
},
icon: Image.asset(
"assets/img/music_commend_un.png",
width: 29,
height: 29,
),
),
],
)
],
),
const SizedBox(
height: 80,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
"${formatDuration(_position)}",
style: const TextStyle(
color: Colors.black,
),
),
Expanded(
child: SliderTheme(
data: const SliderThemeData(
trackHeight: 3.0, // 调整轨道的高度
thumbShape: RoundSliderThumbShape(
enabledThumbRadius: 7.0), // 调整拇指的大小
overlayShape:
RoundSliderOverlayShape(overlayRadius: 12.0),
),
child: Slider(
min: 0,
max: _duration.inSeconds.toDouble(),
value: _position.inSeconds.toDouble(),
onChanged: (value) async {
await _audioPlayer
.seek(Duration(seconds: value.toInt()));
setState(() {});
},
activeColor: const Color(0xff429482),
inactiveColor: const Color(0xffE3F0ED),
),
),
),
Text(
"${formatDuration(_duration)}",
style: const TextStyle(
color: Colors.black,
),
),
],
),
const SizedBox(
height: 30,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
IconButton(
onPressed: () {},
icon: Image.asset(
"assets/img/music_random.png",
width: 35,
height: 35,
),
),
Row(
children: [
IconButton(
onPressed: playPreviousSong,
icon: Image.asset(
"assets/img/music_back.png",
width: 42,
height: 42,
),
),
const SizedBox(
width: 10,
),
_buildPlayButton(), // 这里使用新的方法替换原来的IconButton
const SizedBox(
width: 10,
),
IconButton(
onPressed: playNextSong,
icon: Image.asset(
"assets/img/music_next.png",
width: 42,
height: 42,
),
),
],
),
IconButton(
onPressed: _showPlaylist,
icon: Image.asset(
"assets/img/music_more.png",
width: 35,
height: 35,
),
),
],
)
],
),
),
),
),
);
}
void _showPlaylist() {
showModalBottomSheet(
context: context,
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.vertical(top: Radius.circular(30))),
builder: (BuildContext context) {
return Container(
padding: const EdgeInsets.only(top: 15),
constraints: BoxConstraints(
maxHeight: MediaQuery.of(context).size.height * 0.45),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
const Center(
child: Text(
"播放列表",
style: TextStyle(
fontSize: 20,
),
),
),
Expanded(
child: ListView.builder(
itemCount: 3,
itemBuilder: (BuildContext context, int index) {
bool isCurrentlyPlaying = currentSongIndex == index;
return ListTile(
tileColor: isCurrentlyPlaying ? const Color(0xffE3F0ED) : null,
title: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Padding(
padding: const EdgeInsets.only(left: 20),
// Add left padding
child: Text(
music[index],
style: const TextStyle(fontSize: 18),
),
),
Padding(
padding: const EdgeInsets.only(right: 20),
// Add right padding
child: Image.asset(
"assets/img/songs_run.png",
width: 25,
), // Add your desired icon here
),
],
),
onTap: () {
_changeCurrentSong(index);
Navigator.pop(context);
},
);
},
),
),
ElevatedButton(
onPressed: () => Navigator.pop(context),
style: ElevatedButton.styleFrom(
backgroundColor: const Color(0xff429482),
padding: const EdgeInsets.symmetric(vertical: 14),
tapTargetSize: MaterialTapTargetSize.shrinkWrap,
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.zero,
),
),
child: const Text(
"关闭",
style: TextStyle(color: Colors.black, fontSize: 20),
),
),
],
),
);
},
);
}
}