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

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_easyrefresh/easy_refresh.dart';
import 'package:sport/bean/forum.dart';
import 'package:sport/bean/post.dart';
import 'package:sport/bean/post_user.dart';
import 'package:sport/bean/user_friend.dart';
import 'package:sport/pages/social/post_widget.dart';
import 'package:sport/provider/lib/provider_widget.dart';
import 'package:sport/provider/lib/view_state_lifecycle.dart';
import 'package:sport/provider/user_detail_model.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/error.dart';
import 'package:sport/widgets/image.dart';
import 'package:sport/widgets/loading.dart';
import 'package:sport/widgets/misc.dart';
import 'package:sport/widgets/space.dart';

class UserPostPage extends StatefulWidget {
  final PostUser user;
  final List<UserFriend>? userFriends;

  UserPostPage(this.user, {this.userFriends});

  @override
  State<StatefulWidget> createState() => _PageState();
}

class _PageState extends ViewStateLifecycle<UserPostPage, UserDetailModel> with InjectApi, UserId {
  static const List<String> _sort = ["时间倒序", "点赞最多", "评论最多"];
  String _sortType = _sort[0];
  late ValueNotifier<List<Forum>> _valueNotifierForums;

  @override
  void initState() {
    super.initState();
    _valueNotifierForums = ValueNotifier([]);
    api.getForumIndex().then((value) {
      _valueNotifierForums.value = [Forum(name: "全部")]..addAll(value.results);
    });
  }

  bool isSelf() {
    return selfId == widget.user.id;
  }

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      appBar: buildAppBar(context,
          title: "${selfId == widget.user.id ? "我" : widget.user.gender == 1 ? "他" : "她"}的帖子",
          actions: [
            ValueListenableBuilder<List<Forum>>(
              builder: (_, snapshot, __) {
                var list = snapshot;
                if (list.isEmpty) return Container();
                return PopupMenuButton(
                  onSelected: (v) {
                    setState(() {
                      if (v is Forum) model.forumBy(v);
                    });
                  },
                  itemBuilder: (BuildContext context) {
                    return divideMenus(list.map((e) => menuItemSelected(e, e.gameName ?? "全部", model.forum == e || model.forum == null && e.gameName == "全部")).toList());
                  },
                  child: Row(
                    mainAxisSize: MainAxisSize.min,
                    children: <Widget>[
                      Text(
                        model.forum?.gameName ?? "全部",
                        style: Theme.of(context).textTheme.bodyText1!,
                      ),
                      Padding(
                        padding: const EdgeInsets.fromLTRB(6, 6, 12.0, 6),
                        child: arrowBottom(),
                      )
                    ],
                  ),
                );
              },
              valueListenable: _valueNotifierForums,
            ),
            Space(
              width: 12,
            ),
            PopupMenuButton(
              onSelected: (v) {
                setState(() {
                  if (v is String) {
                    _sortType = v;
                    model.sortBy(_sortType);
                  }
                });
              },
              itemBuilder: (BuildContext context) {
                return divideMenus(_sort.map((e) => menuItemSelected(e, e, _sortType == e)).toList());
              },
              child: Row(
                mainAxisSize: MainAxisSize.min,
                children: <Widget>[
                  Text(
                    _sortType,
                    style: Theme.of(context).textTheme.bodyText1!,
                  ),
                  Padding(
                    padding: const EdgeInsets.fromLTRB(6, 6, 12.0, 6),
                    child: arrowBottom(),
                  )
                ],
              ),
            )
          ]),
      body: ProviderWidget<UserDetailModel>(
          model: model,
          onModelReady: (model) => model.initData(),
          builder: (_, model, __) {
            return EasyRefresh.builder(
                controller: model.refreshController,
                enableControlFinishRefresh: true,
                enableControlFinishLoad: true,
                onRefresh: () => model.refresh(),
                onLoad: model.isIdle ? () => model.loadMore() : null,
                header: buildClassicalHeader(),
                footer: buildClassicalFooter(),
                builder: (context, physics, header, footer) {
                  return CustomScrollView(
                    physics: physics,
                    slivers: <Widget>[
                      if (header != null) header,
                      if (model.isBusy) SliverToBoxAdapter(child: RequestLoadingWidget()),
                      if (model.isEmpty) SliverToBoxAdapter(child: Center(child: RequestErrorWidget(null, msg: "暂无帖子~", assets: RequestErrorWidget.ASSETS_NO_INVITATION))),
                      if (model.isIdle)
                        SliverList(
                          delegate: SliverChildBuilderDelegate(
                            (context, index) {
                              Post post = model.list[index];
                              return PostWidget(
                                post,
                                model,
                                selfId == post.userId,
                                jump: false,
                                showForum: true,
                                showTopButton: true,
                                callback: () {
                                  model.initData();
                                },
                              );
//                            return Text("A");
                            },
                            childCount: model.list.length,
                          ),
                        ),
                      if (model.isIdle && model.list.isNotEmpty)
                        SliverToBoxAdapter(
                          child: Center(
                              child: Padding(
                            padding: const EdgeInsets.all(32.0),
                            child: Text("没有更多数据了"),
                          )),
                        ),
                    ],
                  );
                });
          }),
    );
  }

  @override
  createModel() => UserDetailModel(widget.user.id.toString());
}