MTMusic/lib/view/main_tab_view/main_tab_view.dart

import 'package:flutter/material.dart';
import 'package:music_player_miao/view/rank_view.dart';
import 'package:music_player_miao/view/user/user_view.dart';

import '../home_view.dart';
import '../release_view.dart';

// 首先创建一个独立的迷你播放器组件
class MiniPlayer extends StatelessWidget {
  const MiniPlayer({super.key});

  @override
  Widget build(BuildContext context) {
    return Container(
      height: 50,  // 减小高度以适应底部
      decoration: BoxDecoration(
        color: Colors.white,
        boxShadow: [
          BoxShadow(
            color: Colors.black.withOpacity(0.1),
            blurRadius: 4,
            offset: const Offset(0, -1),
          ),
        ],
      ),
      child: Row(
        children: [
          // 歌曲封面
          Container(
            width: 50,
            height: 50,
            color: Colors.grey[200],
            child: Image.asset(
              'assets/img/artist_pic.png',
              fit: BoxFit.cover,
            ),
          ),
          // 歌曲信息
          Expanded(
            child: Padding(
              padding: const EdgeInsets.symmetric(horizontal: 12),
              child: Row(
                children: [
                  Expanded(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: [
                        Text(
                          '背对背拥抱',
                          style: TextStyle(
                            fontSize: 14,
                            fontWeight: FontWeight.w500,
                          ),
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                        ),
                        const SizedBox(height: 2),
                        Text(
                          '林俊杰',
                          style: TextStyle(
                            fontSize: 12,
                            color: Colors.grey[600],
                          ),
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                        ),
                      ],
                    ),
                  ),
                  // 播放控制
                  Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      IconButton(
                        icon: const Icon(Icons.play_arrow),
                        onPressed: () {},
                        padding: EdgeInsets.zero,
                        constraints: const BoxConstraints(),
                        iconSize: 24,
                      ),
                      const SizedBox(width: 16),
                      IconButton(
                        icon: const Icon(Icons.playlist_play),
                        onPressed: () {},
                        padding: EdgeInsets.zero,
                        constraints: const BoxConstraints(),
                        iconSize: 24,
                      ),
                      const SizedBox(width: 8),
                    ],
                  ),
                ],
              ),
            ),
          ),
        ],
      ),
    );
  }
}

class MainTabView extends StatefulWidget {
  const MainTabView({super.key});
  @override
  State<MainTabView> createState() => _MainTabViewState();
}

class _MainTabViewState extends State<MainTabView> with SingleTickerProviderStateMixin {
  TabController? controller;
  int selectTab = 0;
  final GlobalKey<ScaffoldState> scaffoldKey = GlobalKey<ScaffoldState>();

  @override
  void initState() {
    super.initState();
    controller = TabController(length: 4, vsync: this);

    controller?.addListener(() {
      selectTab = controller?.index ?? 0;
      setState(() {});
    });
  }

  @override
  void dispose() {
    super.dispose();
    controller?.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: false,
      key: scaffoldKey,
      body: Stack(
        children: [
          // TabBarView 占满整个屏幕
          Column(
            children: [
              Expanded(
                child: TabBarView(
                  controller: controller,
                  children: const [
                    HomeView(),
                    RankView(),
                    ReleaseView(),
                    UserView()
                  ],
                ),
              ),
            ],
          ),
          // 迷你播放器浮动在底部
          Positioned(
            left: 0,
            right: 0,
            bottom: 0,
            child: Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                const MiniPlayer(),
                Container(
                  color: Colors.white,
                  child: TabBar(
                    controller: controller,
                    indicatorColor: Colors.transparent,
                    labelColor: Colors.black,
                    labelStyle: const TextStyle(fontSize: 12),
                    unselectedLabelColor: const Color(0xffCDCDCD),
                    unselectedLabelStyle: const TextStyle(fontSize: 12),
                    tabs: [
                      Tab(
                        height: 60,
                        icon: Image.asset(
                          selectTab == 0 ? "assets/img/home_tab.png" : "assets/img/home_tab_un.png",
                          width: 32,
                          height: 32,
                        ),
                        text: "首页",
                      ),
                      Tab(
                        height: 60,
                        icon: Image.asset(
                          selectTab == 1 ? "assets/img/list_tab.png" : "assets/img/list_tab_un.png",
                          width: 32,
                          height: 32,
                        ),
                        text: "排行榜",
                      ),
                      Tab(
                        height: 60,
                        icon: Image.asset(
                          selectTab == 2 ? "assets/img/music_tab.png" : "assets/img/music_tab_un.png",
                          width: 32,
                          height: 32,
                        ),
                        text: "发布",
                      ),
                      Tab(
                        height: 60,
                        icon: Image.asset(
                          selectTab == 3 ? "assets/img/user_tab.png" : "assets/img/user_tab_un.png",
                          width: 32,
                          height: 32,
                        ),
                        text: "我的",
                      ),
                    ],
                  ),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }
}