YYHome/packages/cpt_community/lib/modules/newsfeed/newsfeed_tabs.dart

import 'package:cpt_community/modules/newsfeed/newsfeed_vm.dart';
import 'package:cs_resources/theme/app_colors_theme.dart';
import 'package:flutter/material.dart';
import 'package:auto_route/auto_route.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:router/ext/auto_router_extensions.dart';
import 'package:shared/utils/color_utils.dart';
import 'package:shared/utils/log_utils.dart';
import 'package:widgets/my_load_image.dart';
import 'package:widgets/ext/ex_widget.dart';
import 'package:widgets/my_text_view.dart';
import 'package:widgets/my_appbar.dart';

import '../community/community_vm.dart';
import '../garagesale/garagesale_vm.dart';

class NewsfeedTabs extends HookConsumerWidget {
  List tabsList;
  Widget? Function(BuildContext)? tabItemBuilder;
  VoidCallback? onClickAction;
  NewsfeedTabs({
    Key? key,
    required this.tabsList,
    this.onClickAction,
    this.tabItemBuilder
  }) : super(key: key);

  Widget _buildTabItem(BuildContext context, WidgetRef ref, vm, item, index) {
    // 监听 activeIndex 的变化
    final activeIndex = ref.watch(newsfeedVmProvider.select((state) => state.activeIndex));


    return Container(
      width: MediaQuery.of(context).size.width / vm.state.tabsList.length - 30,
      height: 43,
      padding: const EdgeInsets.only(top: 10, bottom: 10, left: 10, right: 10),
      decoration: index==activeIndex? BoxDecoration(
        color: index==activeIndex? context.appColors.btnBgDefault: ColorUtils.string2Color("#F2F3F6"),
        borderRadius: BorderRadius.circular(20),
        boxShadow: [
          BoxShadow(
            color: Colors.grey.withOpacity(0.5),
            spreadRadius: 1,
            blurRadius: 5,
            offset: const Offset(0, 2), // changes position of shadow
          ),
        ],
      ): null,
      child: Row(
        children: [
          Expanded(
            child: Container(
              alignment: Alignment.center,
              child: MyTextView(
                item['title'],
                fontSize: 16,
                textAlign: TextAlign.center,
                isFontMedium: true,
                textColor: index == activeIndex ? Colors.white :ColorUtils.string2Color("#000000"),
              ),
            ),
          ),
        ],
      ),
    ).onTap((){
      vm.handlerClickTab(index, item);
    });
  }

  List<Widget> _buildTabs(BuildContext context, WidgetRef ref, vm){

    int currentUseTag = ref.watch(newsfeedVmProvider.select((state) => state.useTag!));

    List tabsList = ref.read(newsfeedVmProvider).tabsList;

    int tabsLength = tabsList.length;

    return List.generate(tabsLength, (index) {
      return _buildTabItem(context, ref, vm, tabsList[index], index);
    });
  }

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final vm = ref.read(newsfeedVmProvider.notifier);
    // 使用useEffect钩子
    useEffect(() {
      print('副作用函数执行');
      // 这里是副作用逻辑
      // vm.initPropData(tabsList, tabItemBuilder, onClickAction);
      // 返回清理函数
      return () {
        print('清理函数执行');
      };
    }, []); // 空依赖列表意味着这个副作用只在组件挂载时执行一次

    return SingleChildScrollView(
      scrollDirection: Axis.horizontal,
      physics: const BouncingScrollPhysics(),
      clipBehavior: Clip.none,
      child: Row(
        mainAxisSize: MainAxisSize.max,
        mainAxisAlignment: MainAxisAlignment.center,
        children: _buildTabs(context, ref, vm),
      ).constrained(
          maxWidth:  MediaQuery.of(context).size.width
      ),
    );
  }
}