huixiang_app/lib/community/community_child_page.dart

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:huixiang/community/community_view/community_dynamic.dart';
import 'package:huixiang/retrofit/data/base_data.dart';
import 'package:huixiang/retrofit/data/comunity_comment.dart';
import 'package:huixiang/retrofit/data/page.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/view_widget/classic_header.dart';
import 'package:huixiang/view_widget/my_footer.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';
import 'package:shared_preferences/shared_preferences.dart';

class CommunityChildPage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _CommunityChildPage();
  }
}

class _CommunityChildPage extends State<CommunityChildPage> {
  RefreshController refreshController = RefreshController();
  ApiService apiService;
  int pageNum = 1;

  List<ComunityComment> comments = [];

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

    _onRefresh();
  }

  _onRefresh() async {
    pageNum = 1;
    queryCommunity();
  }

  queryCommunity() async {
    if (apiService == null) {
      SharedPreferences value = await SharedPreferences.getInstance();
      apiService = ApiService(
        Dio(),
        context: context,
        token: value.getString("token"),
      );
    }

    BaseData<PageInfo<ComunityComment>> baseData = await apiService.trendList({
      "onlyFollow": false,
      "onlyMe": false,
      "pageNum": pageNum,
      "pageSize": 10,
      "searchKey": ""
    }).catchError((error) {
      refreshController.refreshFailed();
      refreshController.loadFailed();
    });

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

  @override
  Widget build(BuildContext context) {
    return FutureBuilder(
      future: _onRefresh(),
      builder: (context, position) {
        return SmartRefresher(
            controller: refreshController,
            enablePullDown: true,
            enablePullUp: true,
            physics: BouncingScrollPhysics(),
            header: MyHeader(),
            footer: CustomFooter(
              builder: (context, mode) {
                return MyFooter(mode);
              },
            ),
            onRefresh: _onRefresh,
            onLoading: queryCommunity,
            child: ListView.builder(
              physics: NeverScrollableScrollPhysics(),
              itemBuilder: (context, position) {
                return InkWell(
                  child: CommunityDynamic(comments[position]),
                  onTap: () {
                    Navigator.of(context).pushNamed(
                      '/router/community_details',
                      arguments: {
                        "comment": comments[position],
                      },
                    );
                  },
                );
              },
              itemCount: comments.length,
            ));
      },
    );
  }
}