mobileCyberGamesApp/lib/pages/MatchPage.dart

import 'package:flutter/material.dart';
import 'package:flutter_swiper/flutter_swiper.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/cupertino.dart';
import '../styles/totast.dart';
import '../net/HttpManager.dart';
import '../net/Result.dart';
import 'TipList.dart';
import 'package:flutter_redux/flutter_redux.dart';
import '../redux/AppState.dart';
import '../widget/LinearButton.dart';
import '../model/BannerInfo.dart';
import '../widget/ITextInput.dart';
import '../widget/HouseItem.dart';
import '../model/HouseInfo.dart';
import 'OpenRoom.dart';
import 'package:flutter_picker/flutter_picker.dart';
import '../model/GameInfo.dart';
import 'dart:async';
import 'dart:convert';
import 'dart:ui';
import 'dart:math';

class MatchPage extends StatefulWidget {
  @override
  _MatchPageState createState() => _MatchPageState();
}

class _MatchPageState extends State<MatchPage> with WidgetsBindingObserver {
  List<HouseInfo> houseList = [];
  int currentPage = 0;
  bool showBadge = false;
  int gameId = 0;
  String searchKey = '';
  bool scrollFlag = false;
  List<BannerInfo> bannerList = [];
  ScrollController _controller;
  List<GameInfo> gameList = [];
  String gameName = '全部游戏';
  bool isFirst = true;
  FocusNode _focusNode = new FocusNode();

  void showPicker(BuildContext context) {
    List<String> _list = [];
    for (var item in gameList) {
      _list.add(item.gameName);
    }
    String PickerData = json.encode(_list);
    Picker(
        confirmText: '确定',
        cancelText: '取消',
        adapter: PickerDataAdapter<String>(pickerdata: JsonDecoder().convert(PickerData)),
        changeToFirst: true,
        textAlign: TextAlign.left,
        columnPadding: const EdgeInsets.all(8.0),
        onConfirm: (Picker picker, List value) {
          setState(() {
            gameId = gameList[value[0]].id;
            gameName = gameList[value[0]].gameName;
          });
        }).showModal(this.context);
  }

  Future<void> getGame() async {
    // Toast.show(context, '加载中', -1, 'loading');
    Result res = await HttpManager.get('gameInfo/all');
    // Toast.hide();
    if (res.success) {
      List<GameInfo> _list = [];
      for (var item in res.data) {
        _list.add(GameInfo.fromJson(item));
      }
      setState(() {
        gameList = _list;
      });
    } else {}
  }

  Future<void> getUnreadMsg() async {
    Result res = await HttpManager.get('systemNotice/unread', data: {'userId': StoreProvider.of<AppState>(context).state.userInfo.id, 'statusFlag': 0});
    if (res.success && res.data != null) {
      if (res.data > 0) {
        setState(() {
          showBadge = true;
        });
      } else {
        setState(() {
          showBadge = false;
        });
      }
    }
  }

  Future<void> getRoomInfo() async {
    print('获取房间');
    Map<String, dynamic> data = {'currentPage': currentPage, 'pageNumber': 20, 'myUserId': StoreProvider.of<AppState>(context).state.userInfo.id};

    data['advancedQuery'] = '';
    if (gameId != 0) {
      data['gameId'] = gameId;
    }
    data['searchKey'] = searchKey;
    List<HouseInfo> _allList = houseList;
    if (currentPage == 1) {
      _allList = [];
    }

    if (StoreProvider.of<AppState>(context).state.userInfo.recommender != null) {
      data['recommender'] = StoreProvider.of<AppState>(context).state.userInfo.recommender;
    }
    Result res = await HttpManager.get('houseInfo/page', data: data);
    if (res.success && res.data['pp'] != null) {
      for (var item in res.data['pp']) {
        HouseInfo _temHouse = HouseInfo.fromJson(item);
        _allList.add(_temHouse);
      }
      if (res.data['page']['currentPage'] < res.data['page']['totalPage']) {
        scrollFlag = true;
      } else {
        scrollFlag = false;
      }
    } else {}

    setState(() {
      houseList = _allList;
    });
  }

  Future<void> search(String text) async {
    if (text != searchKey) {
      currentPage = 1;
      searchKey = text;
      getRoomInfo();
    }
  }

  Future<void> getBannerInfo() async {
    List<BannerInfo> _bannerList = [];
    Toast.show(context, '加载中', -1, 'loading');
    Result res = await HttpManager.get('bannerInfo/all');
    Toast.hide();
    if (res.success && res.data != null) {
      for (var item in res.data) {
        BannerInfo banner = BannerInfo.fromJson(item);
        _bannerList.add(banner);
      }
      setState(() {
        bannerList = _bannerList;
      });
    }
  }

  @override
  void initState() {
    super.initState();
    bannerList = [];
    _controller = ScrollController();
    // gameList.add(GameInfo.fromJson({"id": 0, "gameName": '全部游戏'}));
    _controller.addListener(() {
      if (_controller.position.pixels == _controller.position.maxScrollExtent) {
        if (scrollFlag) {
          setState(() {
            currentPage++;
          });
          getRoomInfo();
        }
      }
    });
    Future.delayed(Duration.zero, () {
      getBannerInfo();
      getGame();
      getRoomInfo();
    });
  }

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

  @override
  Widget build(BuildContext context) {
    return WillPopScope(
      child: GestureDetector(
        behavior: HitTestBehavior.translucent,
        child: Scaffold(
            appBar: AppBar(
              title: Text('赛事'),
              centerTitle: true,
              leading: Material(
                color: Colors.transparent,
                child: Builder(
                  builder: (context) => InkWell(
                        onTap: () async {
                          bool result = await Navigator.push(context, CupertinoPageRoute(builder: (context) => TipList()));
                          if (result) {
                            getUnreadMsg();
                          }
                        },
                        child: Image.asset('images/home_icon_xiaoxi.png'),
                      ),
                ),
              ),
              actions: <Widget>[
                Container(
                  width: 102,
                  padding: EdgeInsets.all(15),
                  child: LinearButton(
                    btntext: '发起比赛',
                    textColor: Color(0xFFA2423E),
                    btnHeight: 26.0,
                    colorList: [Color(0xFFFFE77C), Color(0xFFFFE77C)],
                    textSize: 12.0,
                    onTapHomeMenu: () => {Navigator.push(context, CupertinoPageRoute(builder: (context) => OpenRoom(roomFlag: '0')))},
                  ),
                )
              ],
            ),
            body: Container(
              color: Color(0xFF2E3049),
              height: double.infinity,
              width: double.infinity,
              child: RefreshIndicator(
                color: Theme.of(context).primaryColor,
                backgroundColor: Colors.white,
                displacement: 10,
                onRefresh: () async {
                  await Future.delayed(const Duration(seconds: 1));
                  gameId = 0;
                  currentPage = 1;
                  searchKey = '';
                  getRoomInfo();
                  // getBannerInfo();
                  getGame();
                },
                child: CustomScrollView(
                  physics: AlwaysScrollableScrollPhysics(),
                  controller: _controller,
                  slivers: <Widget>[
                    SliverToBoxAdapter(
                      child: Container(
                        width: double.infinity,
                        height: 200,
                        child: new Swiper(
                            itemBuilder: (BuildContext context, int index) {
                              return Image.network(
                                bannerList[index].imageUrl,
                                fit: BoxFit.fill,
                              );
                            },
                            itemCount: bannerList.length,
                            loop: false,
                            autoplay: true,
                            autoplayDelay: 5000,
                            pagination: SwiperCustomPagination(builder: (BuildContext context, SwiperPluginConfig config) {
                              Color activeColor = Color(0xFFD4504B);
                              Color color = Colors.white;
                              List<Widget> list = [];

                              int itemCount = config.itemCount;
                              int activeIndex = config.activeIndex;

                              for (int i = 0; i < itemCount; ++i) {
                                bool active = i == activeIndex;
                                list.add(
                                  Container(
                                      key: Key("pagination_$i"),
                                      margin:EdgeInsets.symmetric(vertical: 3,horizontal: 2),
                                      child: Container(
                                        width: active ? 8 : 3,
                                        height: 3,
                                        decoration: BoxDecoration(color: active ? activeColor : color, borderRadius: BorderRadius.all(Radius.circular(3))),
                                      )),
                                );
                              }

                              return Container(
                                margin: EdgeInsets.only(top: 186),
                                child: Row(
                                  mainAxisAlignment: MainAxisAlignment.center,
                                  children: list,
                                ),
                              );
                            })),
                      ),
                    ),
                    SliverPersistentHeader(
                      pinned: true, //是否固定在顶部
                      floating: true,
                      delegate: _SliverAppBarDelegate(
                          minHeight: 60, //收起的高度
                          maxHeight: 60, //展开的最大高度
                          child: Container(
                            color: Color(0xFF2E3049),
                            height: 60,
                            padding: EdgeInsets.symmetric(vertical: 10, horizontal: 15),
                            child: Container(
                              decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.all(Radius.circular(4))),
                              child: Row(
                                children: <Widget>[
                                  Container(
                                    width: 10,
                                  ),
                                  ImageIcon(
                                    AssetImage('images/home_icon_sousuo.png'),
                                    color: Color(0xFF727785),
                                  ),
                                  Expanded(
                                    flex: 1,
                                    child: Container(
                                      height: 34,
                                      decoration: BoxDecoration(
                                        color: Colors.white,
                                        borderRadius: BorderRadius.all(Radius.circular(100)),
                                      ),
                                      child: ITextField(
                                          hintText: '搜索竞赛房间',
                                          inputBorder: InputBorder.none,
                                          hintStyle: TextStyle(fontSize: 13, color: Color(0xFFB1B5C0), height: 1.2),
                                          textStyle: TextStyle(color: Colors.black),
                                          contentPadding: EdgeInsets.symmetric(vertical: 4, horizontal: 4),
                                          fieldCallBack: (content) {
                                            search(content);
                                            _focusNode.unfocus();
                                          },
                                          focusNode: _focusNode,
                                          counterStyle: TextStyle(color: Color(0xFF9BA0AE), fontSize: 0),
                                          textInputAction: TextInputAction.search,
                                          fileOnTap: () {
                                            print('选择input');
                                            if (_controller.position.pixels < 200) {
                                              _controller.animateTo(200, duration: Duration(milliseconds: 300), curve: Curves.ease);
                                            }
                                          }),
                                    ),
                                  ),
                                  Container(
                                    width: 1,
                                    height: 10,
                                    color: Color(0xFFB1B5C0),
                                  ),
                                  Container(
                                      width: 99,
                                      child: InkWell(
                                          onTap: () {
                                            showPicker(context);
                                          },
                                          child: Row(
                                            mainAxisAlignment: MainAxisAlignment.center,
                                            children: <Widget>[
                                              Expanded(
                                                flex: 1,
                                                child: Container(
                                                  padding: EdgeInsets.only(left: 5),
                                                  alignment: Alignment.center,
                                                  child: Text(
                                                    gameName,
                                                    style: TextStyle(color: Color(0xFFB1B5C0)),
                                                    overflow: TextOverflow.ellipsis,
                                                  ),
                                                ),
                                              ),
                                              Image.asset('images/icon_zhankai_huise.png'),
                                              Container(
                                                width: 5,
                                              )
                                            ],
                                          )))
                                ],
                              ),
                            ),
                          )),
                    ),
                    SliverFixedExtentList(
                      itemExtent: houseList.isEmpty ? 300 : 90,
                      delegate: SliverChildBuilderDelegate((BuildContext context, int index) {
                        if (houseList.isEmpty) {
                          return Container(
                            padding: EdgeInsets.only(top: 105),
                            child: Column(
                              children: <Widget>[
                                Image.asset('images/icon_kong.png'),
                                Text('暂时没有此房间哦～', style: TextStyle(fontSize: 14, color: Theme.of(context).primaryColor.withOpacity(0.3)))
                              ],
                            ),
                          );
                        } else if (index == houseList.length) {
                          return Text('更多房间敬请期待...', style: TextStyle(color: Colors.grey, fontSize: 13, height: 3), textAlign: TextAlign.center);
                        }
                        return HouseItem(houseList[index], houseList[index].gameInfo);
                      }, childCount: houseList.length + 1),
                    )
                  ],
                ),
              ),
            )),
        onTap: () {
          _focusNode.unfocus();
        },
      ),
      onWillPop: () {
        if (isFirst) {
          isFirst = false;
          Toast.show(context, '再次点击退出程序', 1500, 'info');
          Timer(Duration(seconds: 2), () {
            isFirst = true;
          });
          return Future.value(false);
        } else {
          return Future.value(true);
        }
      },
    );
  }

  List<Widget> _houseList(houselist) {
    List<Widget> list = [];
    for (var i = 0; i < houselist.length; i++) {
      list.add(HouseItem(houselist[i], houselist[i].gameInfo));
    }

    return list;
  }
}

class _SliverAppBarDelegate extends SliverPersistentHeaderDelegate {
  _SliverAppBarDelegate({
    @required this.minHeight,
    @required this.maxHeight,
    @required this.child,
  });

  final double minHeight;
  final double maxHeight;
  final Widget child;

  @override
  double get minExtent => minHeight;

  @override
  double get maxExtent => max(maxHeight, minHeight);

  @override
  Widget build(BuildContext context, double shrinkOffset, bool overlapsContent) {
    return new SizedBox.expand(child: child);
  }

  @override
  bool shouldRebuild(_SliverAppBarDelegate oldDelegate) {
    return maxHeight != oldDelegate.maxHeight || minHeight != oldDelegate.minHeight || child != oldDelegate.child;
  }
}