huixiang_app/lib/community/community_view/course_banner.dart

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter_swiper_view/flutter_swiper_view.dart';
import 'package:huixiang/data/banner.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/utils/shared_preference.dart';
import 'package:huixiang/view_widget/custom_image.dart';
import 'package:huixiang/view_widget/login_tips_dialog.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';

class CourseBanner extends StatefulWidget {

  final List<BannerData> bannerData;

  CourseBanner(this.bannerData);

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

}

class _CourseBanner extends State<CourseBanner> {

  final RefreshController refreshController = RefreshController();
  List<BannerData> bannerData = [];

  @override
  Widget build(BuildContext context) {
    return Container(
      child: AspectRatio(
        aspectRatio: 2.08,
        child: Swiper(
            viewportFraction: 0.88,
            scale: 0.93,
            autoplay: true,
            duration: 1000,
            autoplayDelay: 2000,
            pagination: SwiperPagination(
              alignment: Alignment.bottomCenter,
              builder: DotSwiperPaginationBuilder(
                size: 8,
                activeSize: 8,
                space: 5,
                activeColor: Colors.black,
                color: Colors.black.withAlpha(76),
              ),
            ),
            physics: BouncingScrollPhysics(),
            itemBuilder: (context, position) {
              return InkWell(
                onTap: () {
                  bannerClick(widget.bannerData[position]);
                },
                child: MImage(
                  (position < widget.bannerData.length)
                      ? "${widget.bannerData[position].imgUrl}"
                      : "",
                  fit: BoxFit.fill,
                  radius: BorderRadius.circular(8),
                  errorSrc: "assets/image/default_2_1.webp",
                  fadeSrc: "assets/image/default_2_1.webp",
                ),
              );
            },
            itemCount: (widget.bannerData.isNotEmpty)
                ? widget.bannerData.length
                : 1),
      ),
    );
  }

  /// contentType     跳转类型（0：不跳转，1：积分商品，2：活动，3：文章,4:页面跳转,5:课程,7门店跳转）
  bannerClick(BannerData bannerData) async {
    if (SharedInstance.instance.token.isEmpty) {
      LoginTipsDialog.instance.show(context);
      return;
    }
    switch (bannerData.contentType) {
      case 1:
        Navigator.of(context).pushNamed(
            '/router/integral_store_page',
            arguments: {
              "goodsId": bannerData.content,
            },
        );
        break;
      case 2:
        Navigator.of(context).pushNamed(
          '/router/web_page',
          arguments: {
            "activityId": bannerData.content,
          },
        );
        break;
      case 3:
        Navigator.of(context).pushNamed(
          '/router/web_page',
          arguments: {
            "articleId": bannerData.content,
          },
        );
        break;
      case 4:
        String? router = bannerData.content;
        if (router?.isEmpty ?? true) {
          return;
        }
        if (router!.contains("?")) {
          String params = router.substring(router.indexOf("?"));
          params = params.replaceAll("?", "");
          Map map = jsonDecode(params);
          Navigator.of(context).pushNamed(router, arguments: map);
        } else {
          Navigator.of(context).pushNamed(router);
        }
        break;
      case 5:
        Navigator.of(context).pushNamed(
          '/router/class_details',
          arguments: {
            "id": bannerData.content,
          },
        );
        break;
      case 7:
        String? router = bannerData.content;
        if (router?.isEmpty ?? true) {
          return;
        }
        String params = router!.substring(router.indexOf("?")+1);
        Map map = jsonDecode(params);
        Navigator.of(context).pushNamed(
            router.substring(0, router.indexOf("?")),
            arguments: map,
        );
        break;
    }
    }
  }