flutter-sport/lib/pages/social/message_page.dart

import 'dart:async';

import 'package:extended_nested_scroll_view/extended_nested_scroll_view.dart' as extended;
import 'package:flutter/material.dart';
import 'package:get_it/get_it.dart';
import 'package:provider/provider.dart';
import 'package:sport/bean/notice.dart';
import 'package:sport/pages/social/message_list_subpage.dart';
import 'package:sport/pages/social/message_notice_detail_page.dart';
import 'package:sport/provider/message_model.dart';
import 'package:sport/router/navigator_util.dart';
import 'package:sport/router/routes.dart';
import 'package:sport/services/api/inject_api.dart';
import 'package:sport/services/userid.dart';
import 'package:sport/widgets/appbar.dart';
import 'package:sport/widgets/image.dart';
import 'package:sport/widgets/loading.dart';
import 'package:sport/widgets/misc.dart';
import 'package:sport/widgets/persistent_header.dart';
import 'package:sport/widgets/round_tab_indicator.dart';

class MessagePage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => _PageState();
}

class _PageState extends State<MessagePage> with TickerProviderStateMixin, InjectApi, UserId {
  late TabController _controller;
  late Future<List<Notice>> _future;

  @override
  void initState() {
    super.initState();
    _controller = TabController(length: 3, vsync: this);
    _future = _getNotice();
  }

  Future<List<Notice>> _getNotice() async {
    List<Notice> items = [];
    var resp = await api.getInformList().catchError((onError) {});
    items.addAll(resp.pageResult.results ?? []);
    resp = await api.getNoticeList(isMsg: "0", markread: null);
    items.addAll(resp.pageResult.results ?? []);
    return items;
  }

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

  @override
  Widget build(BuildContext context) {
    final double tabHeader = 50;
    final double statusBarHeight = MediaQuery.of(context).padding.top;
    final double pinnedHeaderHeight =
        //statusBar height
        statusBarHeight +
            //pinned SliverAppBar height in header
            kToolbarHeight +
            tabHeader;

    return Scaffold(
      backgroundColor: Colors.white,
      body: extended.ExtendedNestedScrollView(
          pinnedHeaderSliverHeightBuilder: () {
            return pinnedHeaderHeight;
          },
          headerSliverBuilder: (context, innerBoxIsScrolled) {
            return <Widget>[
              buildSliverAppBar(context, "社区消息", innerBoxIsScrolled: innerBoxIsScrolled),
              SliverPersistentHeader(
                delegate: PersistentHeader(
                    min: tabHeader,
                    max: tabHeader,
                    child: Container(
                      color: Colors.white,
                      child: Column(
                        children: <Widget>[
                          Expanded(
                            child: Center(
                              child: Container(
                                height: 35,
                                child: TabBar(
                                  controller: _controller,
                                  isScrollable: true,
                                  labelPadding: EdgeInsets.symmetric(horizontal: 32),
                                  indicatorWeight: 3,
                                  indicatorPadding: EdgeInsets.symmetric(horizontal: 6),
                                  indicator: RoundUnderlineTabIndicator(borderSide: BorderSide(color: const Color(0xffFFC400), width: 3)),
                                  tabs: <Widget>[
                                    Tab(
                                      text: '聊天',
                                    ),
                                    Tab(
                                      child: Stack(
                                        clipBehavior: Clip.none,
                                        children: [
                                          Center(
                                            child: Text("消息"),
                                          ),
                                          ValueListenableBuilder(
                                            valueListenable: GetIt.I<MessageModel>().notifierSocial,
                                            builder: (BuildContext context, int value, Widget? child) {
                                              int v = value - GetIt.I<MessageModel>().notifierMessage.value;
                                              if (v == 0) return Container();
                                              return Positioned(
                                                right: -4,
                                                top: 4,
                                                child: Container(
                                                  width: 8,
                                                  height: 8,
                                                  decoration: BoxDecoration(shape: BoxShape.circle, color: Colors.red),
                                                ),
                                              );
                                            },
                                          )
                                        ],
                                      ),
                                    ),
                                    Tab(
                                      text: '通知',
                                    ),
                                  ],
                                ),
                              ),
                            ),
                          ),
                          Divider(
                            height: 1,
                            indent: 12.0,
                            endIndent: 12.0,
                          )
                        ],
                      ),
                    )),
                pinned: true,
              ),
            ];
          },
          body: TabBarView(controller: _controller, children: [
            Container(key: const PageStorageKey<String>('Tab1'), child: MessageListSubPage()),
            ListView.separated(
              key: const PageStorageKey<String>('Tab2'),
              padding: EdgeInsets.symmetric(horizontal: 12.0),
              itemBuilder: (context, index) => index == 0
                  ? InkWell(
                      onTap: () async {
                        await NavigatorUtil.go(context, "${Routes.socialMessageDetail}?data=comment");
                        GetIt.I<MessageModel>().getCount();
                      },
                      child: Padding(
                        padding: const EdgeInsets.symmetric(vertical: 12.0),
                        child: Row(children: <Widget>[
                          Image.asset(
                            "lib/assets/img/bbsmessage_icon_color_reply.png",
                            width: 44.0,
                            height: 44.0,
                          ),
                          SizedBox(
                            width: 16.0,
                          ),
                          Expanded(
                            child: Text(
                              "回复我的",
                              style: Theme.of(context).textTheme.subtitle1!.copyWith(fontSize: 16),
                              strutStyle: fixedLine,
                            ),
                          ),
                          ValueListenableBuilder(
                              valueListenable: GetIt.I<MessageModel>().notifierComment,
                              builder: (BuildContext context, int value, Widget? child) => value == 0
                                  ? Container()
                                  : Container(
                                      width: 20,
                                      height: 20,
                                      decoration: BoxDecoration(shape: BoxShape.circle, color: Theme.of(context).accentColor),
                                      child: Center(
                                        child: Text(
                                          value > 99 ? "99+" : "$value",
                                          maxLines: 1,
                                          style: TextStyle(fontSize: 10, color: Colors.white),
                                        ),
                                      ),
                                    )),
                          SizedBox(
                            width: 8.0,
                          ),
                          arrowRight()
                        ]),
                      ))
                  : index == 1
                      ? InkWell(
                          onTap: () async {
                            await NavigatorUtil.go(context, "${Routes.socialMessageDetail}?data=like");
                            GetIt.I<MessageModel>().getCount();
                          },
                          child: Padding(
                            padding: const EdgeInsets.symmetric(vertical: 12.0),
                            child: Row(children: <Widget>[
                              Image.asset(
                                "lib/assets/img/bbsmessage_icon_color_like.png",
                                width: 44.0,
                                height: 44.0,
                              ),
                              SizedBox(
                                width: 16.0,
                              ),
                              Expanded(
                                child: Text(
                                  "点赞",
                                  style: Theme.of(context).textTheme.subtitle1!.copyWith(fontSize: 16),
                                  strutStyle: fixedLine,
                                ),
                              ),
                              ValueListenableBuilder(
                                  valueListenable: GetIt.I<MessageModel>().notifierLike,
                                  builder: (BuildContext context, int value, Widget? child) => value == 0
                                      ? Container()
                                      : Container(
                                          width: 20,
                                          height: 20,
                                          decoration: BoxDecoration(shape: BoxShape.circle, color: Theme.of(context).accentColor),
                                          child: Center(
                                            child: Text(
                                              value > 99 ? "99+" : "$value",
                                              maxLines: 1,
                                              style: TextStyle(fontSize: 10, color: Colors.white),
                                            ),
                                          ),
                                        )),
                              SizedBox(
                                width: 8.0,
                              ),
                              arrowRight()
                            ]),
                          ))
                      : Container(),
              separatorBuilder: (context, index) => Divider(
                height: 1,
              ),
              itemCount: 3,
            ),
            Container(
              key: const PageStorageKey<String>('Tab3'),
              child: FutureBuilder(
                future: _future,
                builder: (_, AsyncSnapshot<List<Notice>> snapshot) {
                  if (snapshot.data == null) return RequestLoadingWidget();
                  return ListView.separated(
                    padding: EdgeInsets.symmetric(horizontal: 12.0),
                    itemBuilder: (context, index) {
                      if (index >= (snapshot.data?.length ?? 0)) return Container();
                      var item = snapshot.data![index];
                      return InkWell(
                        onTap: () async {
                          bool result = await NavigatorUtil.goPage(context, (context) => MessageNoticeDetailPage(item));
                          if (result == true) {
                            item.isRead = 1;
                          }
                        },
                        child: Padding(
                          padding: const EdgeInsets.symmetric(vertical: 12.0),
                          child: Row(children: <Widget>[
                            Image.asset(
                              "lib/assets/img/bbsmessage_icon_color_${(item.type == "rank" || item.type == "receive") ? 'rank' : 'notice'}.png",
                              width: 44.0,
                              height: 44.0,
                            ),
                            SizedBox(
                              width: 8.0,
                            ),
                            Expanded(
                              child: Column(
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: <Widget>[
                                  Container(
                                    height: 18.0,
                                    child: Text(
                                      "${item.title}",
                                      style: Theme.of(context).textTheme.subtitle1!.copyWith(fontSize: 16),
                                      strutStyle: fixedLine,
                                      overflow: TextOverflow.ellipsis,
                                    ),
                                  ),
                                  SizedBox(
                                    height: 4,
                                  ),
                                  Text(
                                    "${item.content}",
                                    maxLines: 1,
                                    overflow: TextOverflow.ellipsis,
                                    style: Theme.of(context).textTheme.bodyText1!,
                                  )
                                ],
                              ),
                            ),
                            SizedBox(
                              width: 8.0,
                            ),
                            arrowRight()
                          ]),
                        ),
                      );
                    },
                    separatorBuilder: (context, index) => Divider(
                      height: 1,
                    ),
                    itemCount: snapshot.data?.length ?? 0 + 1,
                  );
                },
              ),
            )
          ])),
    );
  }
}