demo/xinhuaribao/lib/ui/me/user_favorite_page.dart

import 'package:easy_refresh/easy_refresh.dart';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:go_router/go_router.dart';
import 'package:news_app/constant/size_res.dart';
import 'package:news_app/extension/base.dart';
import 'package:news_app/ui/activity/favorite_video_item_widget.dart';
import 'package:news_app/widget/my_txt.dart';

import '../../constant/color_res.dart';
import '../../model/activity_model.dart';
import '../../provider/user_favorite_provider.dart';
import '../../widget/empty_1_widget.dart';
import '../activity/activity_card_widget.dart';
import '../news/news_child_main_page.dart';

/// @author: bo.zeng
/// @email: cnhbwds@gmail.com
/// @date: 2025 2025/4/9 16:00
/// @description:

class UserFavoritePage extends ConsumerWidget {
  const UserFavoritePage({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    return DefaultTabController(
      length: 3,
      child: Scaffold(
        appBar: AppBar(
          // 移除阴影
          scrolledUnderElevation: 0,
          // 禁用滚动时的阴影变化
          backgroundColor: Colors.white,
          title: myTxt(
            text: "我的收藏",
            fontSize: 18.sp,
            fontWeight: FontWeight.bold,
          ),
          centerTitle: true,
          bottom: TabBar(
            tabAlignment: TabAlignment.center,
            isScrollable: false,
            indicatorColor: color2877FF,
            dividerHeight: 0,
            labelColor: color2877FF,
            // 选中标签颜色
            unselectedLabelColor: color7788A0,
            labelStyle: TextStyle(fontSize: 16.sp, fontWeight: FontWeight.bold),
            unselectedLabelStyle: TextStyle(
              fontSize: 16.sp,
              fontWeight: FontWeight.bold,
            ),
            tabs: [Tab(text: "文章"), Tab(text: "活动"), Tab(text: "视频")],
          ),
        ),
        body: TabBarView(
          children: [
            _UserNewsListPage(),
            _UserActivityListPage(),
            _UserVideoListPage(),
          ],
        ),
      ),
    );
  }
}

final favoriteNewsProvider = NotifierProvider<FavoriteNewsProvider, UserNews>(
  () {
    return FavoriteNewsProvider();
  },
);

class _UserNewsListPage extends ConsumerStatefulWidget {
  const _UserNewsListPage();

  @override
  ConsumerState<_UserNewsListPage> createState() => _UserNewsListPageState();
}

class _UserNewsListPageState extends ConsumerState<_UserNewsListPage>
    with AutomaticKeepAliveClientMixin {
  int pageNum = 0;
  int totalNews = 0;

  @override
  void initState() {
    super.initState();
    ref.read(favoriteNewsProvider.notifier).fetchUserFavorite(pageNum: pageNum);
  }

  @override
  Widget build(BuildContext context) {
    super.build(context);
    final news = ref.watch(favoriteNewsProvider);
    ref.listen(favoriteNewsProvider, (pre, next) {
      totalNews = next.rows?.length ?? 0;
    });
    return news.rows?.isEmpty == true
        ? Empty1widget()
        : EasyRefresh.builder(
          onRefresh: () async {
            pageNum = 0;
            await ref
                .read(favoriteNewsProvider.notifier)
                .fetchUserFavorite(pageNum: pageNum);
            return IndicatorResult.success;
          },
          onLoad: () async {
            if (totalNews >= news.total.safeValue) {
              return IndicatorResult.noMore;
            } else {
              pageNum++;
              await ref
                  .read(favoriteNewsProvider.notifier)
                  .fetchUserFavorite(pageNum: pageNum);
              return IndicatorResult.success;
            }
          },
          childBuilder: (context, py) {
            return ListView.separated(
              physics: py,
              padding: EdgeInsets.symmetric(horizontal: horizontalPadding),
              itemBuilder: (BuildContext context, int index) {
                return buildNewsNewItem(news.rows![index]!, context);
              },
              separatorBuilder: (BuildContext context, int index) {
                return SizedBox.shrink();
              },
              itemCount: news.rows?.length ?? 0,
            );
          },
        );
  }

  @override
  bool get wantKeepAlive => true;
}

final favoriteActivityProvider =
    NotifierProvider<FavoriteActivityProvider, UserActivity>(() {
      return FavoriteActivityProvider();
    });

class _UserActivityListPage extends ConsumerStatefulWidget {
  @override
  ConsumerState<ConsumerStatefulWidget> createState() {
    return _UserActivityListPageState();
  }
}

class _UserActivityListPageState extends ConsumerState<_UserActivityListPage>
    with AutomaticKeepAliveClientMixin {
  int pageNum = 0;
  int totalActivity = 0;

  @override
  void initState() {
    super.initState();
    ref
        .read(favoriteActivityProvider.notifier)
        .fetchUserActivity(pageNum: pageNum);
  }

  @override
  Widget build(BuildContext context) {
    super.build(context);
    final activities = ref.watch(favoriteActivityProvider);
    ref.listen(favoriteActivityProvider, (pre, next) {
      totalActivity = next.rows?.length ?? 0;
    });
    return activities.rows?.isEmpty == true
        ? Empty1widget()
        : EasyRefresh.builder(
          onRefresh: () async {
            pageNum = 0;
            await ref
                .read(favoriteActivityProvider.notifier)
                .fetchUserActivity(pageNum: pageNum);
            return IndicatorResult.success;
          },
          onLoad: () async {
            if (totalActivity >= activities.total.safeValue) {
              return IndicatorResult.noMore;
            } else {
              pageNum++;
              await ref
                  .read(favoriteActivityProvider.notifier)
                  .fetchUserActivity(pageNum: pageNum);
              return IndicatorResult.success;
            }
          },
          childBuilder: (context, py) {
            return ListView.separated(
              physics: py,
              separatorBuilder: (context, index) {
                return SizedBox(height: 10.h);
              },
              padding: EdgeInsets.symmetric(
                horizontal: horizontalPadding,
                vertical: horizontalPadding,
              ),
              itemCount: activities.rows?.length ?? 0,
              itemBuilder: (context, index) {
                return GestureDetector(
                  onTap: () {
                    context.push(
                      "/activity/detail",
                      extra: activities.rows?[index]?.contentId ?? "",
                    );
                  },
                  child: ActivityCardWidget(
                    cellData: activities.rows?[index] ?? ActivityModelRecord(),
                  ),
                );
              },
            );
          },
        );
  }

  @override
  bool get wantKeepAlive => true;
}

final favoriteVideoProvider =
    NotifierProvider<FavoriteVideoProvider, UserVideo>(() {
      return FavoriteVideoProvider();
    });

class _UserVideoListPage extends ConsumerStatefulWidget {
  const _UserVideoListPage();

  @override
  ConsumerState<ConsumerStatefulWidget> createState() {
    return _UserVideoListPageState();
  }
}

class _UserVideoListPageState extends ConsumerState<_UserVideoListPage>
    with AutomaticKeepAliveClientMixin {
  int pageNum = 0;
  int totalVideo = 0;

  @override
  void initState() {
    super.initState();
    ref.read(favoriteVideoProvider.notifier).fetchUserVideo(pageNum: pageNum);
  }

  @override
  Widget build(BuildContext context) {
    super.build(context);
    final videos = ref.watch(favoriteVideoProvider);
    ref.listen(favoriteVideoProvider, (pre, next) {
      totalVideo = next.rows?.length ?? 0;
    });
    return videos.rows?.isEmpty == true
        ? Empty1widget()
        : EasyRefresh.builder(
          onRefresh: () async {
            pageNum = 0;
            await ref
                .read(favoriteVideoProvider.notifier)
                .fetchUserVideo(pageNum: pageNum);
            return IndicatorResult.success;
          },
          onLoad: () async {
            if (totalVideo >= videos.total.safeValue) {
              return IndicatorResult.noMore;
            } else {
              pageNum++;
              await ref
                  .read(favoriteVideoProvider.notifier)
                  .fetchUserVideo(pageNum: pageNum);
              return IndicatorResult.success;
            }
          },
          childBuilder: (context, py) {
            return ListView.separated(
              physics: py,
              padding: EdgeInsets.symmetric(horizontal: horizontalPadding),
              itemBuilder: (context, index) {
                return FavoriteVideoItemWidget(data: videos.rows![index]);
              },
              separatorBuilder: (context, index) {
                return SizedBox(height: 10.h);
              },
              itemCount: videos.rows?.length ?? 0,
            );
          },
        );
  }

  @override
  bool get wantKeepAlive => true;
}