huixiang_app/lib/community/community_view/home_class.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_baidu_mapapi_base/flutter_baidu_mapapi_base.dart';
import 'package:huixiang/retrofit/data/collect_class_list.dart';
import 'package:huixiang/retrofit/data/course_list.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/utils/font_weight.dart';
import 'package:huixiang/view_widget/custom_image.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

class HomeClass extends StatefulWidget {
  final Map<String,List<CourseList>> collectMap;
  final List<CollectClassList> collectList;

  HomeClass(this.collectMap,this.collectList);
  @override
  State<StatefulWidget> createState() {
    return _HomeClass();
  }
}

class _HomeClass extends State<HomeClass> {
  ApiService apiService;
  BMFCoordinate latLng;

  final TextEditingController editingController = TextEditingController();

  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      padding: EdgeInsets.zero,
      itemCount:widget.collectList == null ? 0 : widget.collectList.length,
      scrollDirection: Axis.vertical,
      shrinkWrap: true,
      physics: NeverScrollableScrollPhysics(),
      itemBuilder: (context, position) {
        return collectItem(widget.collectList[position]);
      },
    );
  }

  Widget collectItem(CollectClassList collectList) {
    return Container(
      width: 168,
      // height: 250,
      margin: EdgeInsets.symmetric(
        horizontal: 6.w,
        vertical:10,
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Padding(padding: EdgeInsets.only(left: 16,top: 5),
          child: Text(
            collectList.name,
            style: TextStyle(
              fontSize: 15.sp,
              fontWeight: MyFontWeight.medium,
              color: Colors.black,
            ),
          ),),
          Container(
            height: 195,
            margin: EdgeInsets.only(top:10),
            child: ListView.builder(
              scrollDirection: Axis.horizontal,
              physics: BouncingScrollPhysics(),
              padding: EdgeInsets.symmetric(horizontal: 10),
              itemCount:widget.collectMap[collectList.id] == null ? 0 : widget.collectMap[collectList.id].length,
              itemBuilder: (context, position) {
                return GestureDetector(
                  onTap: () {
                    Navigator.of(context).pushNamed('/router/class_details',
                    arguments: {"id":widget.collectMap[collectList.id][position].id})
                        .then((value) => {widget.collectMap[collectList.id][position].viewers = value != null?value:widget.collectMap[collectList.id][position].viewers+1});
                  },
                  child: classItem(widget.collectMap[collectList.id][position]),
                );
              },
            ),
          ),
        ],
      ),
    );
  }

  Widget classItem(CourseList collect) {
    return Container(
      width: 168,
      height: 195,
      decoration: BoxDecoration(
        borderRadius: BorderRadius.vertical(
          bottom: Radius.circular(4),
        ),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withAlpha(10),
            offset: Offset(0, 3),
            blurRadius: 14,
            spreadRadius: 0,
          )
        ],
        color: Colors.white,
      ),
      margin: EdgeInsets.symmetric(
        horizontal:6,
      ),
      child: Column(
        children: [
          Stack(
            alignment: Alignment.topRight,
            children: [
              Stack(
                alignment: Alignment(0.9,0.9),
                children: [
                  Container(
                    decoration: BoxDecoration(
                      borderRadius: BorderRadius.only(
                        topLeft: Radius.circular(4),
                        topRight: Radius.circular(4),
                      ),
                      boxShadow: [
                        BoxShadow(
                          color: Colors.black.withAlpha(10),
                          offset: Offset(0, 3),
                          blurRadius: 14,
                          spreadRadius: 0,
                        )
                      ],
                      color: Color.fromARGB(90, 0, 0, 0),
                    ),
                    child: ClipRRect(
                      child: Opacity(
                        opacity: 0.6,
                        child: MImage(
                          collect.coverImg,
                          width: double.infinity,
                          height: 120,
                          fit: BoxFit.cover,
                          errorSrc: "assets/image/default_1.png",
                          fadeSrc: "assets/image/default_1.png",
                        ),
                      ),
                      borderRadius: BorderRadius.vertical(
                        top: Radius.circular(4),
                      ),
                    ),
                  ),
                  Container(
                    padding: EdgeInsets.only(left: 4),
                    child:Row(
                      children: [
                        Row(
                          mainAxisAlignment: MainAxisAlignment.spaceAround,
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            Image.asset(
                              "assets/image/ketang_play.png",
                              width: 16.w,
                              height: 16.h,
                              color: Colors.white,
                            ),
                            SizedBox(width:5),
                            Text(
                              collect.viewers.toString(),
                              style: TextStyle(
                                fontSize: 12.sp,
                                fontWeight: MyFontWeight.regular,
                                color: Colors.white,
                              ),
                            ),
                          ],
                        ),
                        SizedBox(width:8),
                        // Row(
                        //   children: [
                        //     Image.asset(
                        //       "assets/image/ketang_message.png",
                        //       width: 16.w,
                        //       height: 16.h,
                        //       color: Colors.white,
                        //     ),
                        //     SizedBox(width:5),
                        //     Text(
                        //       collect.viewers.toString(),
                        //       style: TextStyle(
                        //         fontSize: 12.sp,
                        //         fontWeight: MyFontWeight.regular,
                        //         color: Colors.white,
                        //       ),
                        //     ),
                        //   ],
                        // ),
                      ],
                    ),

                  ),
                ],
              ),
              Container(
                margin: EdgeInsets.only(top: 8,right: 8),
                height: 16.h,
                width: 30.w,
                alignment: Alignment.center,
                decoration: BoxDecoration(
                  borderRadius:
                  BorderRadius.circular(2),
                  color: Color(0xFFFFCD00),
                ),
                child: Text(
                  ( collect?.tags != null && collect.tags.length > 0 )?collect.tags[0] : "",
                  style: TextStyle(
                    fontSize: 12.sp,
                    fontWeight: MyFontWeight.medium,
                    color: Color(0xFF634815),
                  ),
                ),
              ),
            ],
          ),
          Expanded(child:
          Container(
            padding: EdgeInsets.all(8),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Expanded(child: Text(
                      collect.subject,
                      overflow: TextOverflow.ellipsis,
                      maxLines: 2,
                      style: TextStyle(
                        fontSize: 14.sp,
                        fontWeight: MyFontWeight.semi_bold,
                        color: Colors.black,
                      ),
                    ),),
                  ],
                ),
                SizedBox(height:2),
                Text(
                  "讲师:${collect.author.name}",
                  overflow: TextOverflow.ellipsis,
                  maxLines: 2,
                  style: TextStyle(
                    fontSize: 12.sp,
                    fontWeight: MyFontWeight.regular,
                    color: Colors.black,
                  ),
                ),
              ],
            ),
          ),),
        ],
      ),
    );
  }
}