aku_new_community/lib/pages/home/home_page.dart

import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';
import 'package:akuCommunity/base/assets_image.dart';
import 'package:akuCommunity/utils/screenutil.dart';
import 'widget/home_app_bar.dart';
import 'widget/home_search.dart';
import 'widget/home_swiper.dart';
import 'widget/home_card.dart';
import 'widget/home_tag_bar.dart';
import 'package:akuCommunity/widget/container_comment.dart';
import 'package:akuCommunity/widget/single_ad_space.dart';
import 'package:akuCommunity/widget/grid_button.dart';
import 'package:akuCommunity/widget/sliver_goods_card.dart';
import 'package:akuCommunity/service/net_util.dart';
import 'package:akuCommunity/service/base_model.dart';
import 'package:akuCommunity/model/aku_shop_model.dart';
import 'package:akuCommunity/widget/goods_card_skeleton.dart';
import 'package:akuCommunity/routers/page_routers.dart';

class HomePage extends StatefulWidget {
  HomePage({Key key}) : super(key: key);

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

class _HomePageState extends State<HomePage>
    with AutomaticKeepAliveClientMixin, SingleTickerProviderStateMixin {
  @override
  bool get wantKeepAlive => true;

  List<AkuShopModel> _shopList = [];
  List<dynamic> data;

  RefreshController _refreshController =
      RefreshController(initialRefresh: false);

  int page = 1;

  @override
  void initState() {
    super.initState();
    Future<String> loadString =
        DefaultAssetBundle.of(context).loadString("assets/json/shop.json");
    loadString.then((String value) {
      // 通知框架此对象的内部状态已更改
      akuShop(value);
    });
    // akuShop(page);
  }

  Future<void> akuShop(String response) async {
    Map<String, dynamic> result = json.decode(response.toString());
    BaseModel model = BaseModel.fromJson(result);
    model.result.forEach((item) {
      item["count"] = 1;
      item["isCheck"] = false;
      AkuShopModel list = AkuShopModel.fromJson(item);
      setState(() {
        _shopList.add(list);
      });
    });
  }

  void _onLoading() async {
    await Future.delayed(Duration(milliseconds: 1500));
    page++;
    // akuShop(page);
    if (mounted) setState(() {});
    _refreshController.loadComplete();
  }

  @override
  Widget build(BuildContext context) {
    ScreenUtil.init(context,
        designSize: Size(750, 1334), allowFontScaling: true);
    return Scaffold(
      appBar: PreferredSize(
        child: HomeAppBar(),
        preferredSize: Size.fromHeight(kToolbarHeight),
      ),
      body: RefreshConfiguration(
        child: SmartRefresher(
          controller: _refreshController,
          header: WaterDropHeader(),
          footer: ClassicFooter(),
          onLoading: _onLoading,
          enablePullUp: true,
          enablePullDown: false,
          child: CustomScrollView(
            slivers: [
              SliverToBoxAdapter(
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    HomeSearch(),
                    HomeSwiper(),
                    SizedBox(height: Screenutil.length(100)),
                    ContainerComment(
                      radius: 8,
                      customWidget: GridButton(
                        gridList: AssetsImage.homeGridList,
                        count: 4,
                      ),
                    ),
                    SingleAdSpace(
                      imagePath: 'assets/example/guanggao2.png',
                    ),
                    HomeTagBar(
                      title: '物业收费标准请查收~',
                      tag: '公告',
                      isShowImage: true,
                    ),
                    Column(
                      children: [
                        HomeTagBar(
                          title: '社区活动',
                          tag: '活动',
                          isShowImage: false,
                          fun: () {
                            Navigator.pushNamed(
                                context, PageName.activities_page.toString(),
                                arguments: Bundle()..putBool('isVote', false));
                          },
                        ),
                        HomeCard(
                          isActivity: true,
                          title: '22日上午10点,阳光小镇在二期乒乓球场地举行了小区乒乓比赛',
                          subtitleOne: '活动时二楼',
                          subtitleTwo: '06月17日 12:00至06月17日 18:30',
                          imagePath:
                              'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1601275745883&di=e7b2a1afdb8812f8a9acd9742ea7e1a7&imgtype=0&src=http%3A%2F%2Fy3.ifengimg.com%2Fcmpp%2F2013%2F12%2F27%2F03%2F459f46cb-c07f-4083-9a65-27b90cb4562f.jpg',
                        ),
                      ],
                    ),
                    SizedBox(height: Screenutil.length(24)),
                    Column(
                      children: [
                        HomeTagBar(
                          title: '社区团购',
                          tag: '团购',
                          isShowImage: false,
                        ),
                        HomeCard(
                          isActivity: false,
                          title: '新疆库尔阿勒4.5斤,仙人蕉 香甜可口',
                          subtitleOne: '中国新疆',
                          subtitleTwo: '2020年07月03日',
                          imagePath:
                              'http://news.eastday.com/d/file/tga/2013-02-17/c2e7bd7fca1ed2ecf5d50dc9fb30275d.jpg',
                        ),
                        HomeCard(
                          isActivity: false,
                          title: '刚果柠檬大果4盒 鲜果新鲜采摘15斤',
                          subtitleOne: '非洲刚果',
                          subtitleTwo: '2020年08月09日',
                          imagePath:
                              'http://5b0988e595225.cdn.sohucs.com/images/20180203/328e145f84c54dd08d1b11b890109862.jpeg',
                        ),
                      ],
                    ),
                    SizedBox(height: Screenutil.length(30)),
                    HomeTagBar(
                      title: '社区商城',
                      tag: '团购',
                      isShowImage: false,
                      isShowTitle: true,
                    ),
                  ],
                ),
              ),
              SliverPadding(
                  padding: EdgeInsets.only(
                    top: Screenutil.length(30),
                    left: Screenutil.length(32),
                    right: Screenutil.length(32),
                  ),
                  sliver: _shopList.length == 0
                      ? SliverToBoxAdapter(child: GoodsCardSkeleton())
                      : SliverGoodsCard(shoplist: _shopList)),
            ],
          ),
        ),
      ),
    );
  }
}