soybean/modules/module_home/lib/view/home_follow_room_page.dart

import 'package:flutter/material.dart';
import 'package:common_project/common_project.dart';
import 'package:module_home/model/home_hot_room_list_model.dart';
import 'package:module_home/navigation/routers.dart';
import 'package:module_home/view_model/home_follow_cubit.dart';
class HomeFollowRoomPage extends StatefulWidget {
  const HomeFollowRoomPage({Key? key}) : super(key: key);

  @override
  _HomeFollowRoomPageState createState() => _HomeFollowRoomPageState();
}

class _HomeFollowRoomPageState extends State<HomeFollowRoomPage>{
  @override
  Widget build(BuildContext context) {
    return BlocProvider(
      create: (context)=>HomeFollowCubit(),
      child: BlocListener<AuthenticationCubit, AuthenticationState>(
        listener: (context,state){
          HomeFollowCubit bloc = BlocProvider.of<HomeFollowCubit>(context);
            bloc.myFavRoom();
        },
        child: Builder(builder: (context){
          HomeFollowCubit bloc = BlocProvider.of<HomeFollowCubit>(context);
          return Scaffold(
            body: _followWidget(bloc),
          );
        }),
      ),
    );
  }



  Widget _followWidget(HomeFollowCubit listCubit){

    return EasyRefresh(
      onRefresh: ()async{
        listCubit.myFavRoom();
      },
      child: Builder(builder: (context){

        context.select((HomeFollowCubit bloc) => bloc.state.favRoomItems);
        HomeFollowCubit listCubit = BlocProvider.of<HomeFollowCubit>(context);

        return listCubit.state.favRoomItems != [] && listCubit.state.favRoomItems!.length > 0 ? GridView.builder(
            padding: EdgeInsets.zero,
            shrinkWrap: true,//收缩包装
            scrollDirection: Axis.vertical,
            physics: NeverScrollableScrollPhysics(),
            gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
              //横轴元素个数
                crossAxisCount: 2,
                //纵轴间距
                mainAxisSpacing: 10.w,
                //横轴间距
                crossAxisSpacing: 10.w,
                //子组件宽高长度比例
                childAspectRatio: 1.0
            ),
            itemCount: listCubit.state.favRoomItems!.length,
            itemBuilder: (BuildContext context, int index) =>
                _gridItem(listCubit.state.favRoomItems![index])
        ):emptWidget();
      }),
    );



    return Builder(builder: (context){
      context.select((HomeFollowCubit bloc) => bloc.state.favRoomItems);
      HomeFollowCubit listCubit = BlocProvider.of<HomeFollowCubit>(context);
      return EasyRefresh(
        onRefresh: ()async{
          listCubit.myFavRoom();
        },
        child: Builder(builder: (context){

          context.select((HomeFollowCubit bloc) => bloc.state.favRoomItems);
          HomeFollowCubit listCubit = BlocProvider.of<HomeFollowCubit>(context);

          return listCubit.state.favRoomItems != [] && listCubit.state.favRoomItems!.length > 0 ? GridView.builder(
              padding: EdgeInsets.zero,
              shrinkWrap: true,//收缩包装
              scrollDirection: Axis.vertical,
              physics: NeverScrollableScrollPhysics(),
              gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                //横轴元素个数
                  crossAxisCount: 2,
                  //纵轴间距
                  mainAxisSpacing: 10.w,
                  //横轴间距
                  crossAxisSpacing: 10.w,
                  //子组件宽高长度比例
                  childAspectRatio: 1.0
              ),
              itemCount: listCubit.state.favRoomItems!.length,
              itemBuilder: (BuildContext context, int index) =>
                  _gridItem(listCubit.state.favRoomItems![index])
          ):emptWidget();
        }),
      );
    });

  }

  Widget emptWidget(){


    return SingleChildScrollView(
      child: Column(
        children: [
          Container(
            child: EmptyStateLayout(hintText: '暂无关注房间', type: StateType.emptyData,),
            height: 600.h,
          ),
          Container(
            width: Sizes.width,
            margin: EdgeInsets.only(left: 32.w,bottom: 16.h),
            child: Text("房间推荐",style: TextStyle(fontSize: Sizes.fs_28,fontWeight: FontWeight.w500),),
          ),
          Builder(builder: (context){

            context.select((HomeFollowCubit bloc) => bloc.state.hotRoomItems);
            HomeFollowCubit bloc = BlocProvider.of<HomeFollowCubit>(context);
            return bloc.state.hotRoomItems != [] && bloc.state.hotRoomItems!.length > 0? GridView.builder(
                shrinkWrap: true,//收缩包装
                scrollDirection: Axis.vertical,
                padding: EdgeInsets.only(top: 10.h),
                physics: NeverScrollableScrollPhysics(),
                gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                  //横轴元素个数
                    crossAxisCount: 2,
                    //纵轴间距
                    mainAxisSpacing: 10.w,
                    //横轴间距
                    crossAxisSpacing: 10.w,
                    //子组件宽高长度比例
                    childAspectRatio: 1.0
                ),
                itemCount: 4,
                itemBuilder: (BuildContext context, int index) =>
                    _hotRoomtem(bloc.state.hotRoomItems![index])
            ):Container();
          })
        ],
      ),
    );




    return Container(
      child: ExtendedNestedScrollView(
        headerSliverBuilder: (BuildContext context,bool innerBoxIsScrolled){
          return<Widget>[
            SliverAppBar(
              pinned: true,
              floating: true,
              expandedHeight:600.h,
              backgroundColor: Colors.white,
              flexibleSpace: FlexibleSpaceBar(
                collapseMode: CollapseMode.pin,
                background: Container(//头部整个背景颜色
                  height: double.infinity,
                  child: Column(
                    children: <Widget>[
                      Container(
                        child: EmptyStateLayout(hintText: '暂无关注房间', type: StateType.emptyData,),
                        height: 600.h,
                      ),

                    ],
                  ),
                ),
              ),
              bottom: PreferredSize(
                child: Container(
                  width: Sizes.width,
                  margin: EdgeInsets.only(left: 32.w,bottom: 16.h),
                  child: Text("房间推荐",style: TextStyle(fontSize: Sizes.fs_28,fontWeight: FontWeight.w500),),
                ),
                preferredSize: Size.fromHeight(60.h),
              ),
            )
          ];
        },
        body: Builder(builder: (context){

          context.select((HomeFollowCubit bloc) => bloc.state.hotRoomItems);
          HomeFollowCubit bloc = BlocProvider.of<HomeFollowCubit>(context);
          return bloc.state.hotRoomItems != [] && bloc.state.hotRoomItems!.length > 0? GridView.builder(
              shrinkWrap: true,//收缩包装
              scrollDirection: Axis.vertical,
              padding: EdgeInsets.only(top: 10.h),
              gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                //横轴元素个数
                  crossAxisCount: 2,
                  //纵轴间距
                  mainAxisSpacing: 10.w,
                  //横轴间距
                  crossAxisSpacing: 10.w,
                  //子组件宽高长度比例
                  childAspectRatio: 1.0
              ),
              itemCount: 4,
              itemBuilder: (BuildContext context, int index) =>
                  _hotRoomtem(bloc.state.hotRoomItems![index])
          ):Container();
        }),
      ),
      height: Sizes.height,
    );







    return Container(
      height: Sizes.height,
      child: Column(
        children: [
          Container(
            child: EmptyStateLayout(hintText: '暂无数据', type: StateType.emptyData,),
            height: 600.h,
          ),
          Container(
            margin: EdgeInsets.only(left: 32.w,bottom: 16.h),
            child: Row(
              children: [
                Text("房间推荐",style: TextStyle(fontSize: Sizes.fs_28,fontWeight: FontWeight.w500),)
              ],
            ),
          ),
          Expanded(child: Builder(builder: (context){
            context.select((HomeFollowCubit bloc) => bloc.state.hotRoomItems);
            HomeFollowCubit bloc = BlocProvider.of<HomeFollowCubit>(context);
            return bloc.state.hotRoomItems != [] && bloc.state.hotRoomItems!.length > 0?  Container(
              child: GridView.builder(
                  shrinkWrap: true,//收缩包装
                  scrollDirection: Axis.vertical,
                  // physics: NeverScrollableScrollPhysics(),
                  gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                    //横轴元素个数
                      crossAxisCount: 2,
                      //纵轴间距
                      mainAxisSpacing: 10.w,
                      //横轴间距
                      crossAxisSpacing: 10.w,
                      //子组件宽高长度比例
                      childAspectRatio: 1.0
                  ),
                  itemCount: 4,
                  itemBuilder: (BuildContext context, int index) =>
                      _hotRoomtem(bloc.state.hotRoomItems![index])
              ),
            ):Container();
          }))
        ],
      ),


    );



  }


  Widget _gridItem(FavRoomItem data){
    return InkWellDelay(
      shakeTime: 1,
      onTap: (){
        XLog.d("进入页面的次数");
        if(data.roomType == RoomType.RoomTypeCommon){
          ChatRoomManager.instance.enterRoom(context, "${data.roomId}", null,coverUrl: "${data.roomCover}");
        } else {
          ToastUtil.showToast('${S.of(context).appRoomTips}');
        }
        // Application.navigateTo(context: context, route: RouterPath().chatHome,params: {"roomId":data.roomId});

      },
      child: Container(
        decoration: BoxDecoration(
            borderRadius: BorderRadius.all(Radius.circular(16.w)),
            color: Colors.blue
        ),
        child: Stack(
          children: [
            Container(
              alignment: Alignment.center,
              decoration: BoxDecoration(
                  borderRadius: BorderRadius.all(Radius.circular(16.w)),
                  image: DecorationImage(image: ImageUtil.getImageProvider('${data.roomCover}'),fit: BoxFit.cover)
              ),
            ),
            Positioned(
                right: 0,
                top: 0,
                child: Container(
                  alignment: Alignment.center,
                  height: 32.h,
                  padding: EdgeInsets.only(left: 10.w,right: 10.w),
                  decoration: BoxDecoration(
                      color: HexColor.fromHex("#1A191F").withOpacity(0.3),
                      borderRadius: BorderRadius.only(topRight: Radius.circular(16.w),bottomLeft: Radius.circular(32.h))
                  ),
                  child: Text("${data.roomHeat}",style: TextStyle(fontSize: Sizes.fs_24,color: Colors.white),),
                )
            ),
            Positioned(
                left: 16.w,
                bottom: 16.h,
                child:Row(
                  children: [
                    Container(
                      alignment: Alignment.center,
                      height: 32.h,
                      padding: EdgeInsets.only(left: 12.w,right: 12.w),
                      decoration: BoxDecoration(
                          color: HexColor.fromHex("#6A00FE"),
                          borderRadius: BorderRadius.only(topLeft: Radius.circular(10.w),bottomLeft: Radius.circular(10.w))
                      ),
                      child: Text("${data.categoryName}",style: TextStyle(fontSize: Sizes.fs_20,color: Colors.white),),
                    ),
                    Container(
                      height: 32.h,
                      alignment: Alignment.center,
                      padding: EdgeInsets.only(left: 8.w,right: 8.w),
                      decoration: BoxDecoration(
                          color: HexColor.fromHex("#1A191F").withOpacity(0.3),
                          borderRadius: BorderRadius.only(topRight: Radius.circular(10.w),bottomRight: Radius.circular(10.w))
                      ),
                      child: Text("ID:${data.roomNo}",style: TextStyle(color: Colors.white,fontSize: Sizes.fs_20),),
                    )
                  ],
                )
            )
          ],
        ),
      ),);
  }
  Widget _hotRoomtem(HotRoomData data){
    return InkWellDelay(
      shakeTime: 1,
      onTap: (){
        XLog.d("进入页面的次数");
        if(data.roomType == RoomType.RoomTypeCommon){
          ChatRoomManager.instance.enterRoom(context, "${data.roomId}", null,coverUrl: "${data.roomCover}");
        } else {
          ToastUtil.showToast('${S.current.appRoomTips}');
        }
        // Application.navigateTo(context: context, route: RouterPath().chatHome,params: {"roomId":data.roomId});

      },
      child: Container(
        decoration: BoxDecoration(
            borderRadius: BorderRadius.all(Radius.circular(16.w)),
            color: Colors.blue
        ),
        child: Stack(
          children: [
            Container(
              alignment: Alignment.center,
              decoration: BoxDecoration(
                  borderRadius: BorderRadius.all(Radius.circular(16.w)),
                  image: DecorationImage(image: ImageUtil.getImageProvider('${data.roomCover}'),fit: BoxFit.cover)
              ),
            ),
            Positioned(
                right: 0,
                top: 0,
                child: Container(
                  alignment: Alignment.center,
                  height: 32.h,
                  padding: EdgeInsets.only(left: 10.w,right: 10.w),
                  decoration: BoxDecoration(
                      color: HexColor.fromHex("#1A191F").withOpacity(0.3),
                      borderRadius: BorderRadius.only(topRight: Radius.circular(16.w),bottomLeft: Radius.circular(32.h))
                  ),
                  child: Text("${data.roomHeat}",style: TextStyle(fontSize: Sizes.fs_24,color: Colors.white),),
                )
            ),
            Positioned(
                left: 16.w,
                bottom: 16.h,
                child:Row(
                  children: [
                    Container(
                      alignment: Alignment.center,
                      height: 32.h,
                      padding: EdgeInsets.only(left: 12.w,right: 12.w),
                      decoration: BoxDecoration(
                          color: HexColor.fromHex("#6A00FE"),
                          borderRadius: BorderRadius.only(topLeft: Radius.circular(10.w),bottomLeft: Radius.circular(10.w))
                      ),
                      child: Text("${data.categoryName}",style: TextStyle(fontSize: Sizes.fs_20,color: Colors.white),),
                    ),
                    Container(
                      height: 32.h,
                      alignment: Alignment.center,
                      padding: EdgeInsets.only(left: 8.w,right: 8.w),
                      decoration: BoxDecoration(
                          color: HexColor.fromHex("#1A191F").withOpacity(0.3),
                          borderRadius: BorderRadius.only(topRight: Radius.circular(10.w),bottomRight: Radius.circular(10.w))
                      ),
                      child: Text("ID:${data.roomNo}",style: TextStyle(color: Colors.white,fontSize: Sizes.fs_20),),
                    )
                  ],
                )
            )
          ],
        ),
      ),);
  }
  @override
  void dispose() {
    // TODO: implement dispose

    XLog.d("页面销毁了");
    super.dispose();
  }
}