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MTMusic/lib/view/user/my_download_view.dart

507 lines
18 KiB

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:music_player_miao/common_widget/Song_widegt.dart';
import '../../common/download_manager.dart';
import '../../view_model/home_view_model.dart';
import '../music_view.dart';
class MyDownloadView extends StatefulWidget {
const MyDownloadView({super.key});
@override
State<MyDownloadView> createState() => _MyDownloadViewState();
}
class _MyDownloadViewState extends State<MyDownloadView> {
final listVM = Get.put(HomeViewModel());
bool _isSelectMode = false;
final List<bool> _mySongListSelections = List.generate(2, (index) => false);
List<bool> _selectedItems = [];
List<Song> _songs = [];
final downloadManager = Get.put(DownloadManager());
@override
void initState() {
super.initState();
_getSongs();
}
void _toggleSelectMode() {
setState(() {
_isSelectMode = !_isSelectMode;
if (!_isSelectMode) {
_selectedItems = List.generate(_songs.length, (index) => false);
}
});
}
void _getSongs() async {
setState(() {
_songs = downloadManager.getLocalSongs();
_selectedItems = List.generate(_songs.length, (index) => false);
});
}
void _selectAll() {
setState(() {
_selectedItems = List.generate(_songs.length, (index) => true);
});
}
void _deleteSongs(List<bool> selectedItems) {
// List<Song> songsToDelete = [];
for (int i = 0; i < selectedItems.length; i++) {
if (selectedItems[i]) {
// songsToDelete.add(_songs[i]);
downloadManager.removeSong(_songs[i].id);
}
}
// 重新加载歌曲列表
_getSongs();
}
void _deleteSong(int index) {
downloadManager.removeSong(_songs[index].id);
_getSongs();
}
void _showSelectionDialog() {
showDialog(
context: context,
builder: (BuildContext context) {
return AlertDialog(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
title: Row(
children: [
const Text(
"添加到",
),
Text(
'(${_selectedItems.where((item) => item).length} 首)',
style: const TextStyle(color: Color(0xff429482), fontSize: 16),
)
],
),
content: SingleChildScrollView(
physics: const BouncingScrollPhysics(),
child: Column(
children: [
for (int i = 0; i < _mySongListSelections.length; i++)
_buildSongListTile(i),
],
),
),
actions: [
TextButton(
onPressed: () {
Navigator.of(context).pop();
},
style: TextButton.styleFrom(
backgroundColor: const Color(0xff429482),
minimumSize: const Size(130, 50),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(5.0),
),
),
child: const Text(
"取消",
style: TextStyle(color: Colors.white),
),
),
TextButton(
onPressed: () {},
style: TextButton.styleFrom(
backgroundColor: const Color(0xff429482),
minimumSize: const Size(130, 50),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(5.0),
),
),
child: const Text(
"保存",
style: TextStyle(color: Colors.white),
),
),
],
);
},
);
}
Widget _buildSongListTile(int index) {
return ListTile(
title: Text("我的歌单 $index"),
trailing: Checkbox(
value: _mySongListSelections[index],
onChanged: (value) {
setState(() {
_mySongListSelections[index] = value ?? false;
});
},
shape: const CircleBorder(),
activeColor: const Color(0xff429482),
),
onTap: () {
setState(() {
_mySongListSelections[index] = !_mySongListSelections[index];
});
},
);
}
@override
Widget build(BuildContext context) {
return Container(
decoration: const BoxDecoration(
image: DecorationImage(
image: AssetImage("assets/img/app_bg.png"),
fit: BoxFit.cover,
),
),
child: Scaffold(
backgroundColor: Colors.transparent,
appBar: AppBar(
backgroundColor: Colors.transparent,
centerTitle: true,
elevation: 0,
leading: !_isSelectMode
? IconButton(
onPressed: () {
Get.back(result: true);
},
icon: Image.asset(
"assets/img/back.png",
width: 25,
height: 25,
fit: BoxFit.contain,
),
)
: TextButton(
onPressed: _selectAll,
style: TextButton.styleFrom(
foregroundColor: Colors.black,
minimumSize: const Size(50, 40), // 设置最小宽度,确保文字有足够空间
padding:
const EdgeInsets.symmetric(horizontal: 8), // 添加水平内边距
),
child: const Text(
'全选',
style: TextStyle(fontSize: 18),
),
),
title: _isSelectMode
? Text(
'已选中 ${_selectedItems.where((item) => item).length} 首歌曲',
style: const TextStyle(
color: Colors.black,
),
)
: const Text(
'本地下载',
style: TextStyle(color: Colors.black),
),
actions: [
if (_isSelectMode)
TextButton(
onPressed: () {
setState(() {
_isSelectMode = false;
_selectedItems = List.generate(_songs.length, (index) => false);
});
},
child: const Text(
"完成",
style: TextStyle(color: Colors.black, fontSize: 18),
))
],
),
body: Container(
padding: const EdgeInsets.only(left: 10),
decoration: const BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.vertical(top: Radius.circular(30)),
),
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
children: [
IconButton(
onPressed: _songs.isEmpty ? null : () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => MusicView(
songList: _songs,
initialSongIndex: 0,
onSongStatusChanged: (index, isCollected, isLiked) {
setState(() {
// 更新父组件中的数据
_songs[index].collection = isCollected;
_songs[index].likes = isLiked;
downloadManager.updateSongInfo(_songs[index].id, isCollected, isLiked);
});
},
),
),
);
},
icon: Image.asset(
"assets/img/button_play.png",
width: 20,
height: 20,
),
),
const Text(
'播放全部',
style: TextStyle(fontSize: 16),
),
const SizedBox(
width: 5,
),
Text(
'${_songs.length}',
style: TextStyle(fontSize: 16),
),
],
),
IconButton(
onPressed: _songs.isEmpty ? null : _toggleSelectMode,
icon: Image.asset(
"assets/img/list_op.png",
width: 20,
height: 20,
),
),
],
),
Expanded(
child: ListView.builder(
itemCount: _songs.length,
itemBuilder: (BuildContext context, int index) {
final song = _songs[index];
return Container(
padding: const EdgeInsets.symmetric(vertical: 5.0),
child: ListTile(
leading: _isSelectMode
? Checkbox(
value: _selectedItems[index],
onChanged: (value) {
setState(() {
_selectedItems[index] = value!;
});
},
shape: const CircleBorder(),
activeColor: const Color(0xff429482),
)
: null,
title: Text('${song.title} - ${song.artist}'),
trailing: _isSelectMode
? null
: IconButton(
icon: const Icon(Icons.more_vert),
onPressed: () {
_bottomSheet(context, index);
},
),
// 添加点击事件
onTap: _isSelectMode
? () {
// 在选择模式下点击整行触发复选框
setState(() {
_selectedItems[index] =
!_selectedItems[index];
});
}
: () {
// 非选择模式下跳转到播放页面
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => MusicView(
songList: _songs,
initialSongIndex: index,
onSongStatusChanged: (index, isCollected, isLiked) {
setState(() {
// 更新父组件中的数据
_songs[index].collection = isCollected;
_songs[index].likes = isLiked;
});
},
),
),
);
},
),
);
},
),
),
],
),
),
bottomNavigationBar: _isSelectMode
? BottomAppBar(
height: 140, // 增加 BottomAppBar 的高度
child: SingleChildScrollView(
// 使用 SingleChildScrollView 包装内容
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Padding(
padding: const EdgeInsets.symmetric(vertical: 8),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
// 左半边 "添加到" 按钮
Expanded(
child: InkWell(
onTap: () {
_showSelectionDialog();
},
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
SizedBox(
width: 25,
height: 25,
child: Image.asset("assets/img/add.png"),
),
const SizedBox(width: 4),
const Text("添加到"),
],
),
),
),
// 中间分隔线
Container(
height: 50,
width: 2,
color: const Color(0xff429482),
),
// 右半边 "删除" 按钮
Expanded(
child: InkWell(
onTap: () {
_deleteSongs(_selectedItems);
},
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
SizedBox(
width: 22,
height: 22,
child:
Image.asset("assets/img/delete.png"),
),
const SizedBox(width: 4),
const Text("删除"),
],
),
),
),
],
),
),
ElevatedButton(
onPressed: () {
setState(() {
_isSelectMode = false;
_selectedItems =
List.generate(_songs.length, (index) => false);
});
},
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(
'取消',
style: TextStyle(color: Colors.black, fontSize: 16),
),
),
],
),
),
)
: null,
),
);
}
Future _bottomSheet(BuildContext context, int index) {
return showModalBottomSheet(
context: context,
backgroundColor: Colors.white,
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.vertical(top: Radius.circular(30))),
builder: (context) => Container(
height: 150,
padding: const EdgeInsets.only(top: 20),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Column(
children: [
IconButton(
onPressed: () {
_deleteSong(index);
Navigator.pop(context);
},
icon: Image.asset("assets/img/list_remove.png"),
iconSize: 60,
),
const Text("删除")
],
),
Column(
children: [
IconButton(
onPressed: () {},
icon: Image.asset("assets/img/list_collection.png"),
iconSize: 60,
),
const Text("收藏")
],
),
Column(
children: [
IconButton(
onPressed: () {},
icon: Image.asset("assets/img/list_good.png"),
iconSize: 60,
),
const Text("点赞")
],
),
Column(
children: [
IconButton(
onPressed: () {},
icon: Image.asset("assets/img/list_comment.png"),
iconSize: 60,
),
const Text("评论")
],
),
],
),
],
),
));
}
}