YYHome/packages/cpt_community/lib/modules/community/community_page.dart

import 'package:cs_resources/generated/assets.dart';
import 'package:flutter/material.dart';
import 'package:auto_route/auto_route.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:plugin_basic/provider/user_config/user_config_service.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 'package:cs_resources/theme/app_colors_theme.dart';
import 'package:widgets/widget_export.dart';

import '../../router/page/community_page_router.dart';
import '../my_posts/my_posts_page.dart';
import 'newsfeed_tabs.dart';
import 'community_vm.dart';
import 'customSilverHeaderTabs.dart';

final tabsRouterKey = GlobalKey<AutoTabsRouterState>();
final GlobalKey<ExtendedNestedScrollViewState> extendedNestedScrollViewKey =
GlobalKey<ExtendedNestedScrollViewState>();
@RoutePage()
class CommunityPage extends HookConsumerWidget with WidgetsBindingObserver {
    CommunityPage({Key? key}) : super(key: key);

    //启动当前页面
    static void startInstance({BuildContext? context}) {
      if (context != null) {
        context.router.push(const CommunityPageRoute());
      } else {
        appRouter.push(const CommunityPageRoute());
      }
    }

    bool _isKeyboardVisible = false;

    void handlerNestedScrollViewScroll({double? outerOffset, double? innerOffset, bool? isOuterScrollAnimated=false, bool? isInnerScrollAnimated=false}){

      if(outerOffset !=null){
        if(isOuterScrollAnimated!){
          extendedNestedScrollViewKey.currentState?.outerController.animateTo(
            outerOffset,
            duration: const Duration(seconds: 1),
            curve: Curves.easeIn,
          );
        }else {
          extendedNestedScrollViewKey.currentState?.outerController.jumpTo(
            outerOffset,
          );
        }
      }

      if(innerOffset !=null){
        extendedNestedScrollViewKey.currentState?.innerPositions.forEach((position) {
          if(isInnerScrollAnimated!){
            position.animateTo(innerOffset,
                duration: Duration(seconds: 1), curve: Curves.easeIn);
          }else {
            position.jumpTo(innerOffset);
          }
        });
      }
    }

    @override
    void didChangeMetrics() {
      final bottomInset = WidgetsBinding.instance.window.viewInsets.bottom;
      final newValue = bottomInset > 0.0;
      if (_isKeyboardVisible != newValue) {
          _isKeyboardVisible = newValue;
        if (_isKeyboardVisible) {
          handlerNestedScrollViewScroll(innerOffset: 0.0,);
          print("键盘已显示");
        } else {
          WidgetsBinding.instance.removeObserver(this);
          print("键盘已隐藏");
        }
      }
    }

    @override
    Widget build(BuildContext context, WidgetRef ref) {
        final vm = ref.read(communityVmProvider.notifier);
        final state = ref.watch(communityVmProvider);

        useEffect(() {
          // 监听窗口
          WidgetsBinding.instance.addObserver(this);
        }, []);



        useEffect((){
          Log.d("CommunityPage initState");
          // 延迟监听
          WidgetsBinding.instance?.addPostFrameCallback((timeStamp) {
            if(tabsRouterKey.currentState?.controller != null){
              tabsRouterKey.currentState?.controller?.addListener((){
                vm.tabsRouterChange();
              });
            }
          });

          return (){
            Log.d("CommunityPage dispose");
            WidgetsBinding.instance.removeObserver(this);
            tabsRouterKey.currentState?.controller?.removeListener(vm.tabsRouterChange);
          };
        },[]);

        return Scaffold(
            appBar: MyAppBar.searchAppBar(
              context,
              value: vm.getCurrentQueryParams('keyword'),
              actions: [
                 const MyAssetImage(
                  Assets.communityLikeActive,
                  width: 21.5,
                  height: 21.5,
                ).onTap((){
                  vm.handlerClickNavbarLikeBtn(context);
                 }),
                SizedBox(width: state.currentCategoryIdx ==0 ? 15:20),
                state.currentCategoryIdx ==1 ?
                  const MyAssetImage(
                    Assets.communityFillterIcon,
                    width: 21,
                    height: 21,
                  ).onTap((){
                    vm.handlerClickNavbarFilterBtn(context);
                  }) : const SizedBox.shrink(),
                const SizedBox(width: 15),
              ],
              backgroundColor: context.appColors.backgroundWhite,
              onSearch: (value) {
                vm.handlerSearch(value);
              }
            ),
          backgroundColor: context.appColors.backgroundDefault,
          body:  ExtendedNestedScrollView(
            key: extendedNestedScrollViewKey,
              onlyOneScrollInBody: true,
            headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) {
              return [
                // SliverPersistentHeader(
                //   delegate: CustomSliverPersistentHeaderDelegate(
                //     maxHeight: 180,
                //     minHeight: 180,
                //     child: _buildTopSection(context, ref, vm, state),
                //   ),
                //   pinned: false,
                // ),
                // top 组件，转换为 Sliver 组件
                SliverToBoxAdapter(
                  child: _buildTopSection(context, ref, vm, state),
                ),
              ];
            },
            body: Column(
              mainAxisSize: MainAxisSize.max,
              children: [
                Expanded(
                    child: AutoTabsRouter.pageView(
                      key: tabsRouterKey,
                      routes: const [
                        NewsPageRoute(),
                        FollowingPageRoute(),
                        ForyouPageRoute(),
                        ForsalePageRoute(),
                        ForrentPageRoute(),
                      ],
                      builder: (context, child, pageController) {
                            final tabsRouter = AutoTabsRouter.of(context);
                        return Column(
                          children: [
                            _buildTabsSection(context, ref, tabsRouter, vm, state),
                            _buildPostSection(context, ref, vm, state),
                            Expanded(
                                child: child
                            ),
                          ],
                        );
                      },
                    )
                )
              ]
            )
          )
        );
    }


     Widget _buildTopSection(BuildContext context, WidgetRef ref, vm, state) {
        final topSectionsData = vm.topSectionsData;
        // final currentPageIdx = tabsRouterKey.currentState?.controller?.activeIndex ?? 0;
        int curTagIdx = 0;
        int currentPageIdx = state.currentPageViewIdx;
        int newsfeedTabCount = state.newsFeedTabsList.length;
        if(currentPageIdx >= newsfeedTabCount){
          curTagIdx = 1;
        }else {
          curTagIdx = 0;
        }
        return Container(
          color: context.appColors.whiteBG,
          padding: const EdgeInsets.only(top: 23, bottom: 30),
          child: Center(
            child: Row(
              mainAxisSize: MainAxisSize.max,
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment: CrossAxisAlignment.center,
              children: List.generate(topSectionsData.length, (index) {
                final item = topSectionsData[index];
                return Column(
                  children: [
                    Container(
                      width: MediaQuery.of(context).size.width / topSectionsData.length - 36,
                      height: 70,
                      decoration: BoxDecoration(
                        shape: BoxShape.circle, // 设置为圆形
                        color: ColorUtils.string2Color("#F0F8FF"),
                        boxShadow: index == curTagIdx ? [
                          BoxShadow(
                            color: context.appColors.tabLightBlueShadow, // 设置阴影颜色
                            blurRadius: 5, // 设置模糊半径
                            spreadRadius: 0.05, // 控制阴影扩散
                            offset: const Offset(0, 4), // 设置阴影偏移量
                          ),] : [],// 未选中时无阴影,
                      ),
                      child: MyAssetImage(
                        item['icon'],
                        width: MediaQuery.of(context).size.width / topSectionsData.length - 36,
                        // width: 70,
                        height: 70,
                      ).onTap(() {
                          vm.handlerSwitchNewsfeedOrGaragesale(index, context, null);
                        },
                        type: ClickType.throttle,
                      ),
                    ),
                    SizedBox.fromSize(size: const Size(0, 9)),
                    MyTextView(
                      item['title'],
                      fontSize: 15,
                      textColor: index == curTagIdx ? ColorUtils.string2Color('#4161D0'): context.appColors.textBlack,
                      textAlign: TextAlign.center,
                      isFontMedium: true,
                    ),
                  ],
                ).marginOnly(left: 18, right: 18, top: 10, bottom: 10);
              }),
            ),
          ),
        );
    }

     Widget _buildTabsSection(BuildContext context, WidgetRef ref, tabsRouter, vm, state){
       int currentPageIndex = tabsRouter!.activeIndex ?? 0;
       int newsfeedTabCount = state.newsFeedTabsList.length;

       List<String> tabsList;
       if(currentPageIndex < newsfeedTabCount){
         // news feed
         tabsList = state.newsFeedTabsList ?? [];
       }else {
         tabsList = state.garageSaleTabsList ?? [];
       }
       return Container(
        width: double.infinity,
        color: ColorUtils.string2Color('#F2F3F6'),
        child: Center(
          child: NewsfeedTabs(
            key: UniqueKey(),
            tabsList: tabsList,
              tabsRouter: tabsRouter,
            margin: EdgeInsets.only(top: 14,bottom: 12, left: 20, right: 20),
            onClickAction:(Map<String, dynamic>? params){
              if (params != null) {
                // 解构 params
                final int? currentCatgoryIdx = params['currentCatgoryIdx'] as int?;
                final int? tabIdx = params['tabIdx'] as int?;
                vm.handlerChangeTab(tabIdx, tabsRouter, currentCatgoryIdx);
              }
            }
          ),
        ),
      );
    }

      Widget _buildPostSection(BuildContext context, WidgetRef ref, vm, state){
        int currentPageIndex = state.currentPageViewIdx;
        int newsfeedTabCount = state.newsFeedTabsList.length;
        if(currentPageIndex < newsfeedTabCount){
          // news feed
          return  _buildNewsFeedPost(context, ref, vm, state);
        }else {
          return  _buildGarageSalePost(context, ref, vm, state);
        }

      }

      Widget _buildNewsFeedPost(BuildContext context, WidgetRef ref, vm, state){
        final userConfig = UserConfigService.getState(ref: ref);
        return Container(
          height: 65.5,
          width: double.infinity,
          padding: const EdgeInsets.only(left: 20, right: 20),
          color: Colors.white,
          child: Row(
            children: [
              // const MyAssetImage(Assets.communityNewsFeed, width: 45,height: 45,),
              MyLoadImage(
                userConfig.user?.avatar,
                width: 45,
                height: 45,
                isCircle: true,
                fit: BoxFit.fill,
              ),
              Expanded(
                child: MyTextView(
                  "What’s on your mind?",
                  textColor: context.appColors.textBlack,
                  fontSize: 15,
                  marginLeft: 15,
                  alignment: Alignment.centerLeft,
                  textAlign: TextAlign.left,
                  backgroundColor: ColorUtils.string2Color('#ffffff'),
                  maxLines: 1,
                  isFontMedium: true,
                ),
              ),
              const MyAssetImage(
                Assets.communityCamera,
                width: 21,
                height: 16.5,
              ),
            ],
          ).onTap((){
            vm.handlerGotoNewsfeedPost(context);
          }),
        );
      }

      Widget _buildGarageSalePost(BuildContext context, WidgetRef ref, vm, state){
        final userConfig = UserConfigService.getState(ref: ref);
        return Container(
          height: 65.5,
          width: double.infinity,
          padding: const EdgeInsets.only(left: 20, right: 20),
          color: Colors.white,
          child: Row(
            children: [
              MyLoadImage(
                userConfig.user?.avatar,
                width: 45,
                height: 45,
                isCircle: true,
                fit: BoxFit.fill,
              ),
              Expanded(
                child: MyTextView(
                  "Sell Item",
                  textColor: context.appColors.textBlack,
                  fontSize: 15,
                  marginLeft: 15,
                  alignment: Alignment.centerLeft,
                  textAlign: TextAlign.left,
                  backgroundColor: ColorUtils.string2Color('#ffffff'),
                  maxLines: 1,
                  isFontMedium: true,
                ),
              ),
              const MyAssetImage(
                Assets.communityCamera,
                width: 21,
                height: 16.5,
              ),
            ],
          ).onTap((){
            vm.handlerGotoGaragePost(context);
          }),
        );
      }
}