MTMusic/lib/view/home_view.dart

import 'package:flutter/material.dart';
import 'package:flutter_swiper_view/flutter_swiper_view.dart';
import 'package:get/get.dart';
import 'package:music_player_miao/api/api_music_return.dart';
import 'package:music_player_miao/common_widget/app_data.dart';
import 'package:music_player_miao/models/search_bean.dart';
import 'package:music_player_miao/view/commend_view.dart';
import '../../view_model/home_view_model.dart';
import '../api/api_music_list.dart';
import '../common/download_manager.dart';
import '../common_widget/Song_widegt.dart';
import '../common_widget/list_cell.dart';
import '../models/getMusicList_bean.dart';
import 'music_view.dart';

class HomeView extends StatefulWidget {
  const HomeView({super.key});

  @override
  State<HomeView> createState() => _HomeViewState();
}

class _HomeViewState extends State<HomeView>
    with AutomaticKeepAliveClientMixin {
  final homeVM = Get.put(HomeViewModel());
  final TextEditingController _controller = TextEditingController();
  bool _isSearching = false;
  final downloadManager = Get.put(DownloadManager());
  List<Song> selectedSongs = [];

  @override
  bool get wantKeepAlive => true;

  @override
  void initState() {
    super.initState();
    _fetchSonglistData();
  }

  Future<void> _onRefresh() async {
    try {
      // 重新获取数据
      await _fetchSonglistData();
    } catch (e) {
      print('Refresh error: $e');
      // 可以在这里添加错误提示
    }
  }

  Future<void> _fetchSonglistData() async {
    try {
      MusicListBean bean1 =
          await GetMusic().getMusic1(Authorization: AppData().currentToken);
      MusicListBean bean2 =
          await GetMusic().getMusic2(Authorization: AppData().currentToken);
      MusicListBean bean3 =
          await GetMusic().getMusic3(Authorization: AppData().currentToken);

      setState(() {
        selectedSongs = [
          Song(
              artistPic: bean1.coverPath!,
              title: bean1.name!,
              artist: bean1.singerName!,
              musicurl: bean1.musicPath!,
              pic: bean1.coverPath!,
              id: bean1.id!,
              likes: bean1.likeOrNot!,
              collection: bean1.collectOrNot!),
          Song(
              artistPic: bean2.coverPath!,
              title: bean2.name!,
              artist: bean2.singerName!,
              musicurl: bean2.musicPath!,
              pic: bean2.coverPath!,
              id: bean2.id!,
              likes: bean2.likeOrNot!,
              collection: bean2.collectOrNot!),
          Song(
              artistPic: bean3.coverPath!,
              title: bean3.name!,
              artist: bean3.singerName!,
              musicurl: bean3.musicPath!,
              pic: bean3.coverPath!,
              id: bean3.id!,
              likes: bean3.likeOrNot!,
              collection: bean3.collectOrNot!),
        ];
      });
    } catch (e) {
      print('Error occurred while fetching song list: $e');
    }
  }

  ///轮播图
  List<Map> imgList = [
    {"image": "assets/img/banner.png"},
    {"image": "assets/img/banner.png"},
    {"image": "assets/img/banner.png"},
  ];

  List<Song> _filteredData = [];

  Future<void> _filterData(String query) async {
    if (query.isNotEmpty) {
      try {
        // 发起搜索请求
        SearchBean bean = await SearchMusic().search(
          keyword: query,
          Authorization: AppData().currentToken,
        );

        // 如果请求成功且返回的数据不为空
        if (bean.code == 200 && bean.data != null) {
          // 创建一个临时列表来存储所有异步请求
          List<Future<Song?>> songDetailsFutures = [];

          // 循环处理每个搜索结果，通过 id 请求详细信息
          for (var data in bean.data!) {
            if (data.id != null) {
              // 确保 id 不为 null
              // 使用每个歌曲的 id 获取详细信息，并返回一个 Future
              songDetailsFutures.add(GetMusicDetail()
                  .getMusicDetail(
                songId: data.id!,
                Authorization: AppData().currentToken,
              )
                  .then((details) {
                if (details != null) {
                  // 将详细歌曲信息封装成 Song 对象
                  return Song(
                    artistPic: details.artistPic ?? '',
                    // 歌手封面图
                    title: data.name ?? '',
                    // 歌曲名称
                    artist: details.artist ?? '',
                    // 歌手名称
                    musicurl: details.musicurl ?? '',
                    // 歌曲路径
                    pic: details.pic ?? '',
                    // 封面图片路径
                    id: details.id,
                    // 歌曲 ID
                    likes: details.likes,
                    // 是否喜欢
                    collection: details.collection, // 是否收藏
                  );
                }
                return null; // 如果没有详情返回 null
              }).catchError((error) {
                print("Error occurred while fetching song details: $error");
                return null; // 异常处理，返回 null
              }));
            } else {
              print("Song ID is null for song: ${data.name}");
            }
          }

          // 使用 Future.wait 等待所有异步请求完成
          List<Song?> songDetailsList = await Future.wait(songDetailsFutures);

          // 过滤掉 null 值
          List<Song> validSongDetails = songDetailsList
              .where((song) => song != null)
              .cast<Song>()
              .toList();

          // 最后更新 UI，一次性更新 _filteredData
          setState(() {
            _filteredData = validSongDetails; // 更新搜索结果
            _isSearching = true; // 设置正在搜索中
          });

          // 打印最终结果
          print("Filtered Data: $_filteredData");
        } else {
          setState(() {
            _filteredData = [];
            _isSearching = false;
          });
        }
      } catch (error) {
        print("Error occurred during search: $error");
        setState(() {
          _filteredData = [];
          _isSearching = false;
        });
      }
    } else {
      setState(() {
        _filteredData = [];
        _isSearching = false;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    super.build(context);

    ///轮播图
    var MySwiperWidget = Swiper(
      itemBuilder: (BuildContext context, int index) {
        //每次循环遍历时，将i赋值给index
        return new Image.asset(
          imgList[index]['image'],
          fit: BoxFit.fill,
        );
      },
      itemCount: imgList.length,
      //指示器
      pagination: SwiperPagination(
        builder: DotSwiperPaginationBuilder(
          color: Colors.white.withOpacity(0.85), // Color of inactive dots
          activeColor: const Color(0xff429482), // Color of active dot
        ),
      ),
      // autoplay: true,
      autoplayDelay: 3000,
    );
    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: Column(
          children: [
            ///头部
            Container(
              padding: const EdgeInsets.only(left: 20, top: 50),
              child: const Row(
                crossAxisAlignment: CrossAxisAlignment.end,
                children: [
                  Text(
                    '喵听',
                    style: TextStyle(fontSize: 35, fontWeight: FontWeight.bold),
                  ),
                  SizedBox(width: 10),
                  Text(
                    '你的云端音乐库',
                    style: TextStyle(fontSize: 20, fontWeight: FontWeight.w500),
                  ),
                ],
              ),
            ),
            const SizedBox(height: 10),

            ///搜索
            Container(
              padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
              child: Column(
                children: [
                  Container(
                    height: 38,
                    decoration: BoxDecoration(
                      color: const Color(0xffF9F2AF),
                      borderRadius: BorderRadius.circular(19),
                      boxShadow: const [
                        BoxShadow(
                          color: Colors.black26,
                          offset: Offset(0, 1),
                          blurRadius: 0.1,
                        )
                      ],
                    ),
                    child: TextField(
                      controller: _controller,
                      onChanged: (query) {
                        setState(() async {
                          _filterData(query);
                        });
                      },
                      decoration: InputDecoration(
                        focusedBorder: InputBorder.none,
                        enabledBorder: InputBorder.none,
                        errorBorder: InputBorder.none,
                        contentPadding: const EdgeInsets.symmetric(
                          vertical: 4,
                          horizontal: 20,
                        ),
                        prefixIcon: Container(
                          margin: const EdgeInsets.only(left: 20),
                          alignment: Alignment.centerLeft,
                          width: 30,
                          child: Image.asset(
                            "assets/img/home_search.png",
                            width: 20,
                            height: 20,
                            fit: BoxFit.contain,
                          ),
                        ),
                        hintText: "大家都在搜《背对背拥抱》",
                        hintStyle: const TextStyle(
                          color: Color(0xffA5A5A5),
                          fontSize: 13,
                        ),
                      ),
                    ),
                  ),
                  if (_isSearching)
                    Container(
                      height: 150,
                      width: 345,
                      decoration: BoxDecoration(
                        color: const Color(0xffF9F2AF).withOpacity(0.7),
                      ),
                      child: ListView.builder(
                        padding: EdgeInsets.zero,
                        itemCount: _filteredData.length,
                        itemBuilder: (context, index) {
                          return ListTile(
                            title: Text(_filteredData[index].title),
                            onTap: () {
                              // 用户点击列表项时，执行以下操作：
                              Navigator.push(
                                // 使用 Navigator 进行页面跳转
                                context,
                                MaterialPageRoute(
                                  // 创建一个新的页面（MusicView），并将当前歌曲和索引作为参数传递给它
                                  builder: (context) => MusicView(
                                    songList: _filteredData,
                                    // 传递当前列表项对应的歌曲对象，包含歌曲的详细信息
                                    initialSongIndex:
                                        index, // 传递当前歌曲在歌曲列表中的索引，用于在新页面中显示或操作
                                  ),
                                ),
                              );
                            },
                          );
                        },
                      ),
                    ),
                ],
              ),
            ),

            const SizedBox(
              height: 10,
            ),

            ///推荐+轮播图
            Expanded(
              child: RefreshIndicator(
                onRefresh: _onRefresh,
                color: const Color(0xff429482),
                backgroundColor: Colors.white,
                child: SingleChildScrollView(
                  physics: const AlwaysScrollableScrollPhysics(),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      ///推荐+轮播图
                      Container(
                        padding:
                            const EdgeInsets.only(left: 20, right: 20, top: 10),
                        child: const Text(
                          '每日推荐',
                          style: TextStyle(
                              fontSize: 20, fontWeight: FontWeight.w500),
                        ),
                      ),
                      const SizedBox(height: 5),
                      Container(
                        padding: const EdgeInsets.symmetric(
                            horizontal: 20, vertical: 5),
                        height: 186,
                        width: double.infinity,
                        child: MySwiperWidget,
                      ),

                      const SizedBox(height: 10),

                      ///精选歌曲
                      Container(
                        alignment: Alignment.topLeft,
                        padding:
                            const EdgeInsets.only(left: 20, right: 20, top: 5),
                        child: const Text(
                          '精选歌曲',
                          style: TextStyle(
                              fontSize: 20, fontWeight: FontWeight.w500),
                        ),
                      ),
                      const SizedBox(
                        height: 5,
                      ),
                      ListView.builder(
                        padding: EdgeInsets.zero,
                        itemCount: selectedSongs.length,
                        physics: const NeverScrollableScrollPhysics(),
                        shrinkWrap: true,
                        itemBuilder: (context, index) {
                          return ListTile(
                            leading: Image.network(selectedSongs[index].pic),
                            title: Text(
                              selectedSongs[index].title,
                              style: const TextStyle(
                                  fontSize: 18, color: Colors.black),
                            ),
                            subtitle: Text(
                              selectedSongs[index].artist,
                              style: const TextStyle(
                                  fontSize: 16, color: Colors.black),
                            ),
                            trailing: InkWell(
                              onTap: () {
                                _bottomSheet(context, index);
                              },
                              child: Image.asset('assets/img/More.png'),
                            ),
                            onTap: () {
                              Navigator.push(
                                context,
                                MaterialPageRoute(
                                  builder: (context) => MusicView(
                                    songList: selectedSongs,
                                    initialSongIndex: index,
                                    onSongStatusChanged:
                                        (index, isCollected, isLiked) {
                                      setState(() {
                                        // 更新父组件中的数据
                                        selectedSongs[index].collection =
                                            isCollected;
                                        selectedSongs[index].likes = isLiked;
                                        downloadManager.updateSongInfo(
                                            selectedSongs[index].id,
                                            isCollected,
                                            isLiked);
                                      });
                                    },
                                  ),
                                ),
                              );
                            },
                          );
                        },
                      ),

                      const SizedBox(
                        height: 10,
                      ),

                      ///精选歌单
                      Container(
                        padding:
                            const EdgeInsets.only(left: 20, right: 20, top: 5),
                        child: const Text(
                          '精选歌单',
                          style: TextStyle(
                              fontSize: 20, fontWeight: FontWeight.w500),
                        ),
                      ),
                      const SizedBox(
                        height: 5,
                      ),
                      SizedBox(
                        height: 180,
                        child: ListView.builder(
                            scrollDirection: Axis.horizontal,
                            shrinkWrap: true,
                            padding: const EdgeInsets.only(left: 20),
                            itemCount: homeVM.listArr.length,
                            itemBuilder: (context, index) {
                              var sObj = homeVM.listArr[index];
                              return ListRow(
                                sObj: sObj,
                                onPressed: () {},
                                onPressedPlay: () {},
                              );
                            }),
                      ),
                    ],
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  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) => StatefulBuilder(
        // 使用StatefulBuilder以便动态修改状态
        builder: (context, setState) {
          bool likesnot = false; // 初始状态，假设未点赞

          return Container(
            height: 150,
            padding: const EdgeInsets.only(top: 20),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.stretch,
              children: [
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                  children: [
                    Column(
                      children: [
                        IconButton(
                          onPressed: () {},
                          icon: Image.asset("assets/img/list_add.png"),
                          iconSize: 60,
                        ),
                        const Text("加入歌单"),
                      ],
                    ),
                    Column(
                      children: [
                        IconButton(
                          onPressed: () {},
                          icon: Image.asset("assets/img/list_download.png"),
                          iconSize: 60,
                        ),
                        const Text("下载"),
                      ],
                    ),
                    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: () {
                            Navigator.pop(context);
                            Get.to(() => CommentView(
                                  initialSongIndex: index,
                                ));
                          },
                          icon: Image.asset("assets/img/list_comment.png"),
                          iconSize: 60,
                        ),
                        const Text("评论"),
                      ],
                    ),
                  ],
                ),
              ],
            ),
          );
        },
      ),
    );
  }
}