huixiang_app/lib/home/home_page.dart

import 'package:dio/dio.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:flutter_swiper/flutter_swiper.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/home/home_view/home_banner.dart';
import 'package:huixiang/home/home_view/home_integral_store.dart';
import 'package:huixiang/home/home_view/sign_view.dart';
import 'package:huixiang/main.dart';
import 'package:huixiang/retrofit/data/article.dart';
import 'package:huixiang/retrofit/data/banner.dart';
import 'package:huixiang/retrofit/data/base_data.dart';
import 'package:huixiang/retrofit/data/brand.dart';
import 'package:huixiang/retrofit/data/founder.dart';
import 'package:huixiang/retrofit/data/goods.dart';
import 'package:huixiang/retrofit/data/page.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/utils/event_type.dart';
import 'package:huixiang/view_widget/classic_header.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'home_view/brand_view.dart';
import 'home_view/founder_store.dart';
import 'home_view/hot_article.dart';

class HomePage extends StatefulWidget {
  final GestureTapCallback callback;

  HomePage(this.callback);

  @override
  State<StatefulWidget> createState() {
    return _HomePage(callback);
  }
}

class _HomePage extends State<HomePage> with AutomaticKeepAliveClientMixin {
  ApiService apiService;
  final GestureTapCallback callback;

  _HomePage(this.callback);

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

    eventBus.on<EventType>().listen((event) {
      if (event.type < 3) {
        setState(() {});
      }
    });
  }

  final SwiperController controller = SwiperController();

  List<BannerData> bannerData = [];
  List<Brand> brandData = [];
  List<Article> articles = [];
  List<Goods> gooods = [];
  Founder founder;

  queryHome() async {
    EasyLoading.show(status: S.of(context).zhengzaijiazai);

    final SharedPreferences value = await SharedPreferences.getInstance();
    apiService = ApiService(Dio(), context: context, token: value.getString('token'), showLoading: false);

    final BaseData brand =
        await apiService.queryHomeBrand().catchError((onError) {
      refreshController.refreshFailed();
    });
    if (brand != null && brand.isSuccess) {
      brandData.clear();
      brandData.addAll((brand.data["brandList"] as List<dynamic>)
          .map((e) => Brand.fromJson(e))
          .toList());
      founder = Founder.fromJson(brand.data["founder"]);
    }

    final BaseData<PageInfo<Article>> article = await apiService.queryArticle({
      "pageNum": 1,
      "pageSize": 3,
      "searchKey": "",
      "state": 1,
      "type": 2
    }).catchError((onError) {
      refreshController.refreshFailed();
    });
    articles.clear();
    if (article != null && article.isSuccess) {
      articles.addAll(article.data.list);
    }

    final BaseData<PageInfo<Goods>> goodsData = await apiService.creditGoods({
      "orderDesc": true,
      "orderType": 1,
      "pageNum": 1,
      "pageSize": 10,
      "state": 1
    }).catchError((onError) {
      refreshController.refreshFailed();
    });
    if (goodsData != null && goodsData.isSuccess) {
      gooods.clear();
      gooods.addAll(goodsData.data.list);
    }

    final BaseData<PageInfo<BannerData>> baseData =
        await apiService.queryBanner({
      "model": {"type": "HOME_PAGE"},
    }).catchError((onError) {
      refreshController.refreshFailed();
    });
    if (baseData != null && baseData.isSuccess) {
      bannerData.clear();
      bannerData.addAll(baseData.data.records);
      refreshController.refreshCompleted();
      if (bannerData.length > 0) controller.move(0, animation: false);
    } else {
      refreshController.refreshFailed();
    }
    EasyLoading.dismiss();
  }

  @override
  void dispose() {
    super.dispose();
    refreshController.dispose();
  }

  final RefreshController refreshController = RefreshController();

  @override
  Widget build(BuildContext context) {
    super.build(context);
    return Container(
      child: SmartRefresher(
        controller: refreshController,
        enablePullDown: true,
        enablePullUp: false,
        header: MyHeader(),
        physics: BouncingScrollPhysics(),
        onRefresh: () {
          setState(() {});
        },
        child: SingleChildScrollView(
          physics: NeverScrollableScrollPhysics(),
          child: FutureBuilder(
            future: queryHome(),
            builder: (context, snapshot) {
              return Column(
                children: [
                  ///banner
                  HomeBanner(bannerData, controller),

                  ///签到
                  SignView(),

                  ///热门文章
                  HotArticle(articles),

                  ///创始人故事
                  FounderStore(founder),

                  ///品牌介绍
                  BrandView(brandData),

                  ///积分商城
                  HomeIntegralStore(gooods, callback),
                ],
              );
            },
          ),
        ),
      ),
    );
  }

  @override
  bool get wantKeepAlive => true;
}