huixiang_app/lib/mine/follow_page.dart

import 'package:dio/dio.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/retrofit/data/base_data.dart';
import 'package:huixiang/retrofit/data/follow_list.dart';
import 'package:huixiang/retrofit/data/page.dart';
import 'package:huixiang/retrofit/data/vip_card.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/utils/font_weight.dart';
import 'package:huixiang/view_widget/classic_header.dart';
import 'package:huixiang/view_widget/custom_image.dart';
import 'package:huixiang/view_widget/my_footer.dart';
import 'package:huixiang/view_widget/no_data_view.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

class FollowPage extends StatefulWidget {
  final Function refresh;

  FollowPage(
      this.refresh
      );

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

class _FollowPage extends State<FollowPage> {
  RefreshController _refreshController;
  ApiService apiService;
  int pageNum = 1;
  List<ListData> list = [];

  @override
  void initState() {
    super.initState();
    _refreshController = RefreshController();

    SharedPreferences.getInstance().then((value) {
      apiService =
          ApiService(Dio(), context: context, token: value.getString("token"));
      _queryFollowList();
    });
  }

  ///我的关注列表
  _queryFollowList() async {
    SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
    if (apiService == null)
      apiService = ApiService(
        Dio(),
        context: context,
        token: sharedPreferences.getString("token"),
        showLoading: false,
      );
    BaseData<PageInfo<ListData>> baseData = await apiService.followList({
      "isMyFans": false,
      "pageNum": 1,
      "pageSize": 100,
    }).catchError((error) {
      _refreshController.refreshFailed();
      _refreshController.loadFailed();
    });

    _refreshController.refreshCompleted();
    _refreshController.loadComplete();
    if (baseData != null && baseData.isSuccess) {
      if (pageNum == 1) {
        list.clear();
      }
      list.addAll(baseData.data.list);
      print("list: ${list.length}");
      if (int.tryParse(baseData.data.total) < (pageNum * 10)) {
        _refreshController.loadNoData();
      }
      setState(() {});
    }
  }

  ///关注/取关会员
  _vipFollow(followId) async {
    BaseData baseData = await apiService.follow(followId);
    if (baseData != null && baseData.isSuccess) {
      widget.refresh();
      _queryFollowList();
      SmartDialog.showToast("取关成功", alignment: Alignment.center);
    } else {
      SmartDialog.showToast(baseData.msg, alignment: Alignment.center);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        margin: EdgeInsets.only(top: 2),
        color:Colors.white,
        child: SmartRefresher(
          enablePullDown: true,
          enablePullUp: false,
          header: MyHeader(),
          footer: CustomFooter(
            builder: (context, mode) {
              return MyFooter(mode);
            },
          ),
          controller: _refreshController,
          onRefresh: (){_queryFollowList();},
          physics: BouncingScrollPhysics(),
          child: ListView.builder(
            itemCount: list == null ? 0 : list.length,
            shrinkWrap: true,
            physics: NeverScrollableScrollPhysics(),
            scrollDirection: Axis.vertical,
            padding: EdgeInsets.symmetric(vertical: 8.h),
            itemBuilder: (context, position) {
              return Container(
                child: followItem(list[position]),
              );
            },
          ),
          //     NoDataView(
          //   isShowBtn: false,
          //   text: "共关注0人",
          //   fontSize: 16.sp,
          //   margin: EdgeInsets.only(top: 120.h),
          // ),
        ),

      ),
    );
  }


  Widget followItem(ListData list) {
    return Container(
      margin: EdgeInsets.symmetric(horizontal: 16.w, vertical: 16.h),
      child:Row(
        mainAxisAlignment: MainAxisAlignment.spaceAround,
        crossAxisAlignment:CrossAxisAlignment.center,
        children: [
          MImage(
            list != null ? (list.avatar ?? "") : "",
            width: 44,
            height: 44,
            isCircle: true,
            fit: BoxFit.cover,
            errorSrc: "assets/image/default_1.png",
            fadeSrc: "assets/image/default_1.png",
          ),
          SizedBox(
            width:8,
          ),
          Expanded(child:Text(
            list != null ? (list.nickname ?? "") : "",
            style: TextStyle(
              color: Color(0xFF1A1A1A),
              fontSize: 14.sp,
              fontWeight: MyFontWeight.medium,
            ),
          )),
          Container(
            width: 56.w,
            height: 25.h,
            decoration: BoxDecoration(
              borderRadius: BorderRadius.circular(11.w),
              color: Color(0xFFE6E6E6),
            ),
            child:
            GestureDetector(onTap: (){
              _vipFollow(list.mid);
            },
            child:Row(
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment:CrossAxisAlignment.center,
              children: [
                Icon(
                  Icons.check,
                  color: Color(0xFF808080),
                  size: 14,
                ),
                SizedBox(
                  width:4,
                ),
                Text(
                  "已关注",
                  style: TextStyle(
                    color: Color(0xFF808080),
                    fontSize: 10.sp,
                    fontWeight: MyFontWeight.regular,
                  ),
                ),
              ],
            ),),
          ),
        ],
      ),
    );
  }
}