huixiang_app/lib/im/im_view/im_page.dart

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/retrofit/data/base_data.dart';
import 'package:huixiang/retrofit/data/message.dart';
import 'package:huixiang/retrofit/data/msg_stats.dart';
import 'package:huixiang/retrofit/data/page.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/my_footer.dart';
import 'package:huixiang/view_widget/round_button.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'on_chat_message.dart';
import 'on_chat_msg_instance.dart';

class IMPage extends StatefulWidget {

  IMPage(Key key): super(key: key);
  @override
  State<StatefulWidget> createState() {
    return _IMPage();
  }
}

class _IMPage extends State<IMPage> implements OnChatMessage {
  ApiService apiService;
  int pageNum = 1;
  List<Message> messages = [];
  Map<String, int> msgNumber = {
    "1": 0,
    "2": 0,
    "3": 0,
    "4": 0,
    "5": 0,
    "6": 0,
  };
  int state = 0;
  final TextEditingController imEditingController = TextEditingController();

  @override
  void onMessage(txt){
    // SmartDialog.showToast("列表 $txt", alignment: Alignment.center);
  }

  @override
  void dispose() {
    super.dispose();
    OnChatMsgInstance.instance.onChatMessage = null;
  }

  @override
  void initState() {
    super.initState();
    OnChatMsgInstance.instance.onChatMessage = this;

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

  _refresh() {
    pageNum = 1;
    queryMessage();
    queryMsgStats();
  }

  queryMessage() async {
    BaseData<PageInfo<Message>> baseData = await apiService.msgList({
      "pageNum": pageNum,
      "pageSize": 10,
      "searchKey": "",
      "state": "",
      "typed": ""
    }).catchError((onError) {
      _refreshController.loadFailed();
      _refreshController.refreshFailed();
    });

    if (baseData != null && baseData.isSuccess) {
      if (pageNum == 1) {
        messages.clear();
      }
      List<Message> message = [];
      message.addAll(baseData.data.list);
      message.forEach((element) {
        if (element.typed == 2 || element.typed == 3) {
          messages.add(element);
        }
      });
      _refreshController.loadComplete();
      _refreshController.refreshCompleted();
      if (mounted) setState(() {});
      if (pageNum * 10 > int.tryParse(baseData.data.total)) {
        _refreshController.loadNoData();
      } else {
        pageNum += 1;
      }
    } else {
      _refreshController.loadFailed();
      _refreshController.refreshFailed();
    }
  }

  queryMsgStats() async {
    if (apiService == null) {
      SharedPreferences value = await SharedPreferences.getInstance();
      apiService = ApiService(
        Dio(),
        context: context,
        token: value.getString("token"),
      );
    }
    BaseData<List<MsgStats>> baseData =
        await apiService.stats().catchError((onError) {});
    if (baseData != null && baseData.isSuccess) {
      setState(() {
        msgNumber.forEach((key, value) {
          msgNumber[key] = 0;
        });
        baseData.data.forEach((element) {
          if (msgNumber.containsKey(element.name)) {
            msgNumber[element.name] = element.number;
          }
        });
      });
      _refreshController.loadComplete();
      _refreshController.refreshCompleted();
    }
    EasyLoading.dismiss();
  }

  RefreshController _refreshController = RefreshController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Color(0xFFFFFFFF),
      body: SmartRefresher(
        enablePullDown: true,
        enablePullUp: false,
        header: MyHeader(),
        physics: BouncingScrollPhysics(),
        footer: CustomFooter(
          loadStyle: LoadStyle.ShowWhenLoading,
          builder: (BuildContext context, LoadStatus mode) {
            return (messages.length == 0) ? Container() : MyFooter(mode);
          },
        ),
        controller: _refreshController,
        onRefresh: _refresh,
        onLoading: () {
          setState(() {
            _refresh();
          });
        },
        child: Container(
          // color: Colors.white,
          decoration: BoxDecoration(
            gradient: LinearGradient(
                begin: Alignment.topCenter,
                end: Alignment.bottomCenter,
                colors: [
                  Color(0xFFD9FFDE),
                  Color(0xFFD9FFDE),
                  Color(0xFFFFFFFF),
                  Color(0xFFFFFFFF),
                ],
                stops: [
                  0,
                  0.2,
                  0.4,
                  1
                ]),
          ),
          child: SingleChildScrollView(
            physics: BouncingScrollPhysics(),
            child: Container(
              padding: EdgeInsets.only(bottom: 30.h),
              child: Column(
                children: [
                  Container(
                    padding: EdgeInsets.only(
                        top: MediaQuery.of(context).padding.top + 12.h,
                        bottom: 15.h,right: 16.w,left: 16.w),
                    child: Row(
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      crossAxisAlignment: CrossAxisAlignment.center,
                      children: [
                        Expanded(
                            child: Text(
                              S.of(context).xiaoxi,
                              style: TextStyle(
                                color: Colors.black,
                                fontSize: 18.sp,
                                fontWeight: MyFontWeight.bold,
                              ),
                            )),
                        GestureDetector(
                          behavior: HitTestBehavior.opaque,
                          onTap: () {
                            Navigator.of(context).pushNamed('/router/chat_friend_group');
                          },
                          child: Container(
                            padding: EdgeInsets.all(12),
                            decoration: BoxDecoration(
                              color: Color(0xFFFFFFFF),
                              borderRadius: BorderRadius.circular(20.r),
                            ),
                            child: Image.asset(
                              "assets/image/friend_grouping.webp",
                              fit: BoxFit.fill,
                              height: 14.h,width: 14.h,
                            ),
                          ),
                        ),
                      ],
                    ),
                  ),
                  imSearchItem(),
                  chatList(),
                  // buildMessage(),fgg
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }

  ///搜索
  Widget imSearchItem() {
    return Container(
      margin: EdgeInsets.fromLTRB(16.w, 0, 16.w, 0),
      padding: EdgeInsets.symmetric(vertical:13.h),
      decoration: BoxDecoration(
        color: Color(0xFFFFFFFF),
        borderRadius: BorderRadius.circular(4),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withAlpha(12),
            offset: Offset(0, 3),
            blurRadius: 14,
            spreadRadius: 0,
          ),
        ],
      ),
      child: TextField(
        textInputAction: TextInputAction.search,
        onEditingComplete: () {
          FocusScope.of(context).requestFocus(FocusNode());
        },
        controller: imEditingController,
        style: TextStyle(
          fontSize: 14.sp,
        ),
        decoration: InputDecoration(
          hintText: "搜索",
          hintStyle: TextStyle(
            fontSize: 14.sp,
            color: Color(0xFFA29E9E),
          ),
          isCollapsed: true,
          prefixIcon: Padding(
            padding: EdgeInsets.only(left: 15.w, right: 5.w),
            child: Image.asset(
              "assets/image/icon_search.webp",
              width: 14.h,
              height: 14.h,
              color: Color(0xFF353535),
            ),
          ),
          prefixIconConstraints: BoxConstraints(),
          border: InputBorder.none,
        ),
      ),
    );
  }

  ///聊天列表
  Widget chatList(){
    return Container(
      child: ListView.builder(
          padding: EdgeInsets.only(top: 16),
          itemCount: 6,
          shrinkWrap: true,
          physics: NeverScrollableScrollPhysics(),
          itemBuilder: (context, position) {
            return GestureDetector(
              behavior:HitTestBehavior.opaque,
              onTap: () {
                Navigator.of(context).pushNamed('/router/chat_details_page');
              },
              child: chatItem(),
            );
          }),
    );
  }

  Widget chatItem(){
    return Container(
      padding: EdgeInsets.only(left: 16.w,right: 17.w,bottom:18.h),
      child:  Row(
        children: [
          // MImage(
          //  "",
          //   isCircle: true,
          //   width: 40,
          //   height: 40,
          //   fit: BoxFit.cover,
          //   errorSrc: "assets/image/default_user.webp",
          //   fadeSrc: "assets/image/default_user.webp",
          // ),
          Image.asset(
            "assets/image/fuka_zj.webp",
            height:54.h,
            width:54.h,
          ),
          SizedBox(width: 12.w,),
          Expanded(child:
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Row(
                children: [
                  Expanded(child: Text(
                      "喽哈",
                      overflow: TextOverflow.ellipsis,
                      maxLines: 1,
                      style: TextStyle(
                        fontSize: 16.sp,
                        color: Color(0xFF060606),
                        fontWeight: MyFontWeight.semi_bold,
                      )),),
                  Text(
                    "2021.03.08  13:22",
                    style: TextStyle(
                      fontSize: 12.sp,
                      color: Color(0xFFA29E9E),
                      fontWeight: MyFontWeight.regular,
                    ),
                  ),
                ],
              ),
              SizedBox(height: 7.h,),
              Row(
                children: [
                  Expanded(child:Text(
                    "新开的火锅店好吃得很",
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: TextStyle(
                      fontSize: 12.sp,
                      color: Color(0xFF353535),
                      fontWeight: MyFontWeight.regular,
                    ),
                  )),
                  Container(
                      width: 16,
                      height: 16,
                      decoration: BoxDecoration(
                        borderRadius: BorderRadius.circular(100),
                        color: Color(0xFFFF441A),
                      ),
                      child: RoundButton(
                        text:"99",
                        textColor: Colors.white,
                        fontWeight: MyFontWeight.regular,
                        backgroup: Color(0xFFFF441A),
                        fontSize: 10.sp,
                        radius: 100,
                      ))
                ],
              )
            ],
          )),
        ],
      ),
    );
  }
}