flutter3.27-dymall基于Flutter3+Getx抖音App直播短视频商城

/// 入口文件main.dart
library;

import 'dart:io';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:get_storage/get_storage.dart';
import 'package:media_kit/media_kit.dart';
import 'package:shirne_dialog/shirne_dialog.dart';

import 'utils/common.dart';

// 引入布局页面
import 'layouts/index.dart';

// 引入路由配置
import 'router/index.dart';

void main() async {
  // 初始化get_storage存储
  await GetStorage.init();

  // 初始化media_kit视频套件
  WidgetsFlutterBinding.ensureInitialized();
  MediaKit.ensureInitialized();

  runApp(const App());
}

class App extends StatelessWidget {
  const App({super.key});

  @override
  Widget build(BuildContext context) {
    return GetMaterialApp(
      title: 'Flutter3 DYMALL',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: const Color(0xFFFF9900)),
        useMaterial3: true,
        fontFamily: Platform.isWindows ? 'Microsoft YaHei' : null
      ),
      home: const Layout(),
      // 初始化路由
      initialRoute: Common.isLogin() ? '/' : '/login',
      // 路由页面
      getPages: routePages,
      // 初始化弹窗key
      navigatorKey: MyDialog.navigatorKey,
    );
  }
}

return Scaffold(
  backgroundColor: Colors.grey[50],
  body: ScrollConfiguration(
    behavior: CustomScrollBehavior().copyWith(scrollbars: false),
    child: CustomScrollView(
      scrollBehavior: CustomScrollBehavior().copyWith(scrollbars: false),
      controller: scrollController,
      slivers: [
        SliverAppBar(
          backgroundColor: Colors.transparent,
          foregroundColor: Colors.white,
          pinned: true,
          expandedHeight: 200.0,
          titleSpacing: 10.0,
          // 搜索框(高斯模糊背景)
          title: ClipRRect(
            borderRadius: BorderRadius.circular(30.0),
            child: BackdropFilter(
              filter: ImageFilter.blur(sigmaX: 10.0, sigmaY: 10.0),
              child: Container(
                ...
              ),
            ),
          ),
          actions: [
            IconButton(icon: Icon(Icons.shopping_cart_outlined), onPressed: () {},),
          ],
          // 自定义伸缩区域(轮播图)
          flexibleSpace: Container(
            decoration: BoxDecoration(
              gradient: LinearGradient(
                begin: Alignment.topLeft,
                end: Alignment.bottomRight,
                colors: [
                  Color(0xFFFF5000), Color(0xFFfcaec4)
                ]
              )
            ),
            child: FlexibleSpaceBar(
              background: Swiper.children(
                pagination: SwiperPagination(
                  builder: DotSwiperPaginationBuilder(
                    color: Colors.white70,
                    activeColor: Colors.white,
                  )
                ),
                indicatorLayout: PageIndicatorLayout.SCALE,
                children: [
                  Image.network('https://m.360buyimg.com/babel/jfs/t20271217/224114/35/38178/150060/6760d559Fd654f946/968c156726b6e822.png',),
                  Image.network('https://m.360buyimg.com/babel/jfs/t20280117/88832/5/48468/139826/6789cbcfF4e0b2a3d/9dc54355b6f65c40.jpg',),
                  Image.network('https://m.360buyimg.com/babel/jfs/t20280108/255505/29/10540/137372/677ddbc1F6cdbbed0/bc477fadedef22a8.jpg',),
                ],
              ),
            ),
          ),
        ),

        ...

        // tabbar列表
        SliverPersistentHeader(
          pinned: true,
          delegate: CustomStickyHeader(
            child: PreferredSize(
              preferredSize: Size.fromHeight(45.0),
              child: Container(
                ...
              ),
            ),
          ),
        ),

        // 瀑布流列表
        ...
      ],
    ),
  ),
  // 返回顶部
  floatingActionButton: Backtop(controller: scrollController, offset: scrollOffset),
);

@override
Widget build(BuildContext context) {
  return Scaffold(
    backgroundColor: Colors.grey[50],
    body: pageList[pageCurrent],
    // 底部导航栏
    bottomNavigationBar: Theme(
      data: ThemeData(
        splashColor: Colors.transparent,
        highlightColor: Colors.transparent,
        hoverColor: Colors.transparent,
      ),
      child: Obx(() {
        return Stack(
          children: [
            Container(
              decoration: BoxDecoration(
                border: Border(top: BorderSide(color: Colors.black45, width: .1)),
              ),
              child: BottomNavigationBar(
                backgroundColor: bottomNavigationBgcolor(),
                fixedColor: FStyle.primaryColor,
                unselectedItemColor: bottomNavigationItemcolor(),
                type: BottomNavigationBarType.fixed,
                elevation: 1.0,
                unselectedFontSize: 12.0,
                selectedFontSize: 12.0,
                currentIndex: pageCurrent,
                items: [
                  ...navItems
                ],
                onTap: (index) {
                  setState(() {
                    pageCurrent = index;
                  });
                },
              ),
            ),
            // 自定义导航栏中间按钮
            Positioned(
              left: MediaQuery.of(context).size.width / 2 - 18,
              top: 0,
              bottom: 0,
              child: InkWell(
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Image.asset('assets/images/logo.png', width: 36.0, isAntiAlias: true, fit: BoxFit.contain,),
                  ],
                ),
                onTap: () {
                  setState(() {
                    pageCurrent = 2;
                  });
                },
              ),
            ),
          ],
        );
      }),
    ),
  );
}

@override
Widget build(BuildContext context) {
  return Scaffold(
    key: scaffoldKey,
    extendBodyBehindAppBar: true,
    appBar: AppBar(
      forceMaterialTransparency: true,
      backgroundColor: [0, 1, 4, 5].contains(videoModuleController.videoTabIndex.value) ? null : Colors.transparent,
      foregroundColor: [0, 1, 4, 5].contains(videoModuleController.videoTabIndex.value) ? Colors.black : Colors.white,
      titleSpacing: 1.0,
      leading: Obx(() => IconButton(
        icon: Badge.count(
          backgroundColor: Colors.red,
          count: 6,
          child: Icon(Icons.sort_rounded, color: tabColor(),),
        ),
        onPressed: () {
          // 自定义打开右侧drawer
          scaffoldKey.currentState?.openDrawer();
        },
      )),
      title: Obx(() {
        return ScrollConfiguration(
          behavior: CustomScrollBehavior().copyWith(scrollbars: false),
          child: TabBar(
            ...
          ),
        );
      }),
      actions: [
        Obx(() => IconButton(icon: Icon(Icons.search_rounded, color: tabColor(),), onPressed: () {},),),
      ],
    ),
    body: ScrollConfiguration(
      behavior: CustomScrollBehavior().copyWith(scrollbars: false),
      child: PageView(
        controller: pageController,
        onPageChanged: (index) {
          videoModuleController.updateVideoTabIndex(index);
          setState(() {
            tabController.animateTo(index, duration: Duration(milliseconds: 200), curve: Curves.easeInOut);
          });
        },
        children: [
          ...tabModules
        ],
      ),
    ),
    // 侧边栏
    drawer: Drawer(
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.horizontal(right: Radius.circular(15.0))),
      clipBehavior: Clip.antiAlias,
      width: 300,
      child: Container(
        ...
      ),
    ),
  );
}

GlobalKey<ScaffoldState> scaffoldKey = GlobalKey();

VideoModuleController videoModuleController = Get.put(VideoModuleController());

late TabController tabController = TabController(initialIndex: videoModuleController.videoTabIndex.value, length: tabList.length, vsync: this);
late PageController pageController = PageController(initialPage: videoModuleController.videoTabIndex.value, viewportFraction: 1.0);

List<String> tabList = ['订阅', '逛逛', '直播', '团购', '短剧', '关注', '同城', '精选'];
final tabModules = [
  KeepAliveWrapper(child: SubscribeModule()),
  KeepAliveWrapper(child: BrowseModule()),
  KeepAliveWrapper(child: LiveModule()),
  KeepAliveWrapper(child: BuyingModule()),
  KeepAliveWrapper(child: DramaModule()),
  AttentionModule(),
  LocalModule(),
  RecommendModule()
];

class KeepAliveWrapper extends StatefulWidget {
  final Widget child;
  const KeepAliveWrapper({super.key, required this.child});

  @override
  State<KeepAliveWrapper> createState() => _KeepAliveWrapperState();
}

class _KeepAliveWrapperState extends State<KeepAliveWrapper> with AutomaticKeepAliveClientMixin {
  @override
  Widget build(BuildContext context) {
    super.build(context);
    return widget.child;
  }

  @override
  bool get wantKeepAlive => true;
}

@override
Widget build(BuildContext context) {
  return Container(
    color: Colors.black,
    child: Column(
      children: [
        Expanded(
          child: Stack(
            children: [
              PageView.builder(
                scrollDirection: Axis.vertical,
                controller: pageController,
                onPageChanged: (index) async {
                  // 更新播放索引
                  videoModuleController.updateVideoPlayIndex(index);
                  setState(() {
                    // 重置slider参数
                    sliderValue = 0.0;
                    sliderDraging = false;
                    position = Duration.zero;
                    duration = Duration.zero;
                  });
                  player.stop();
                  await player.open(Media(videoList[index]['src']));
                },
                itemCount: videoList.length,
                itemBuilder: (context, index) {
                  return Stack(
                    children: [
                      // 视频区域
                      Positioned(
                        top: 0,
                        left: 0,
                        right: 0,
                        bottom: 0,
                        child: GestureDetector(
                          child: Stack(
                            children: [
                              // 短视频插件
                              Visibility(
                                visible: videoModuleController.videoPlayIndex.value == index && position > Duration.zero,
                                child: Video(
                                  controller: videoController,
                                  fit: BoxFit.cover,
                                ),
                              ),
                              // 播放/暂停按钮
                              StreamBuilder(
                                stream: player.stream.playing,
                                builder: (context, playing) {
                                  return Visibility(
                                    visible: playing.data == false,
                                    child: Center(
                                      child: IconButton(
                                        padding: EdgeInsets.zero,
                                        onPressed: () {
                                          player.playOrPause();
                                        },
                                        icon: Icon(
                                          playing.data == true ? Icons.pause : Icons.play_arrow_rounded,
                                          color: Colors.white60,
                                          size: 80,
                                        ),
                                        style: ButtonStyle(
                                          backgroundColor: WidgetStateProperty.all(Colors.black.withAlpha(15))
                                        ),
                                      ),
                                    ),
                                  );
                                },
                              ),
                            ],
                          ),
                          onTap: () {
                            player.playOrPause();
                          },
                        ),
                      ),
                      // 右侧操作栏
                      Positioned(
                        bottom: 15.0,
                        right: 6.0,
                        child: Column(
                          spacing: 15.0,
                          children: [
                            ...
                          ],
                        ),
                      ),
                      // 底部信息区域
                      Positioned(
                        bottom: 15.0,
                        left: 10.0,
                        right: 80.0,
                        child: Column(
                          ...
                        ),
                      ),
                      // mini播放进度条
                      Positioned(
                        bottom: 0.0,
                        left: 6.0,
                        right: 6.0,
                        child: Visibility(
                          visible: videoModuleController.videoPlayIndex.value == index && position > Duration.zero,
                          child: Listener(
                            child: SliderTheme(
                              data: SliderThemeData(
                                trackHeight: sliderDraging ? 6.0 : 2.0,
                                thumbShape: RoundSliderThumbShape(enabledThumbRadius: 4.0), // 调整滑块的大小
                                overlayShape: RoundSliderOverlayShape(overlayRadius: 0), // 去掉Slider默认上下边距间隙
                                inactiveTrackColor: Colors.white24, // 设置非活动进度条的颜色
                                activeTrackColor: Colors.white, // 设置活动进度条的颜色
                                thumbColor: Colors.white, // 设置滑块的颜色
                                overlayColor: Colors.transparent, // 设置滑块覆盖层的颜色
                              ),
                              child: Slider(
                                value: sliderValue,
                                onChanged: (value) async {
                                  // debugPrint('当前视频播放时间$value');
                                  setState(() {
                                    sliderValue = value;
                                  });
                                  // 跳转播放时间
                                  await player.seek(duration * value.clamp(0.0, 1.0));
                                },
                                onChangeEnd: (value) async {
                                  setState(() {
                                    sliderDraging = false;
                                  });
                                  // 继续播放
                                  if(!player.state.playing) {
                                    await player.play();
                                  }
                                },
                              ),
                            ),
                            onPointerMove: (e) {
                              setState(() {
                                sliderDraging = true;
                              });
                            },
                          ),
                        ),
                      ),
                      // 播放位置指示器
                      Positioned(
                        bottom: 100.0,
                        left: 10.0,
                        right: 10.0,
                        child: Visibility(
                          visible: sliderDraging,
                          child: DefaultTextStyle(
                            style: TextStyle(color: Colors.white54, fontSize: 18.0, fontFamily: 'Arial'),
                            child: Row(
                              mainAxisAlignment: MainAxisAlignment.center,
                              spacing: 8.0,
                              children: [
                                Text(position.label(reference: duration), style: TextStyle(color: Colors.white)),
                                Text('/', style: TextStyle(fontSize: 14.0)),
                                Text(duration.label(reference: duration)),
                              ],
                            ),
                          )
                        ),
                      ),
                    ],
                  );
                },
              ),
              /// 固定层
              // 红包广告
              Ads(),
            ],
          ),
        ),
      ],
    ),
  );
}