sbdavid / flutter_page_tracker Goto Github PK

Offstage(
          offstage: _tabIndex != 0,
          child: TickerMode(
              enabled: _tabIndex == 0,
              child: MaterialApp(
                theme: ThemeData(fontFamily: "Meiryo"),
                home: HomeView(),
                navigatorObservers: [TrackerRouteObserverProvider.of(context)],
              )),
        ),
        Offstage(
          offstage: _tabIndex != 1,
          child: TickerMode(
            enabled: _tabIndex == 1,
            child: MaterialApp(
              theme: ThemeData(fontFamily: "Meiryo"),
              home: LifelogView(),
              navigatorObservers: [TrackerRouteObserverProvider.of(context)],
            ),
          ),
        ),

              Navigator.of(context).popUntil((Route route){
                  if (route.settings.name == "/"){
                    return true;
                  }

                  return false;
              });

`点击tabbar` 切换到我的页面 didPageView 不调用 ，请问是什么原因导致的？

首页代码如下：
class TabNavigator extends StatefulWidget {
  final int index;
  TabNavigator({Key key, this.index = 0}) : super(key: key);

  @override
  _TabNavigatorState createState() => _TabNavigatorState();
}

class _TabNavigatorState extends State<TabNavigator> {
  final _defaultColor = Color(0xff979797); // icon默认颜色
  TabsModel model = TabsModel();
  final List<String> _appBarTitles = ['首页', '商品分类', '常用清单', '购物车', '个人中心'];

  List<BottomNavigationBarItem> __buildDarkBottomNavigationBarItem() {
    const _tabsItem = [
      [
        'assets/images/tabs/home_icon.png',
        'assets/images/tabs/home_active_icon.png'
      ],
      [
        'assets/images/tabs/shopping_list_icon.png',
        'assets/images/tabs/shopping_list_active_icon.png'
      ],
      [
        'assets/images/tabs/common_list_icon.png',
        'assets/images/tabs/common_list_active_icon.png'
      ],
      [
        'assets/images/tabs/shop_card_icon.png',
        'assets/images/tabs/shop_card_active_icon.png'
      ],
      [
        'assets/images/tabs/mine_icon.png',
        'assets/images/tabs/mine_active_icon.png'
      ]
    ];
    return List.generate(
        _tabsItem.length,
        (index) => BottomNavigationBarItem(
            icon: BadgeItem(
                index: index,
                child: Image.asset(
                  _tabsItem[index][0],
                  width: 24.0.w,
                  height: 24.0.h,
                  color: _defaultColor,
                )),
            activeIcon: BadgeItem(
                index: index,
                child: Image.asset(_tabsItem[index][1],
                    width: 24.0.w, height: 24.0.h)),
            title: Padding(
              padding: EdgeInsets.only(top: 4.0),
              child: Text(_appBarTitles[index]),
            )));
  }


  @override
  void initState() {
    controller = PageController(initialPage: widget.index);
    model.value = widget.index;
    super.initState();
  }

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

  @override
  Widget build(BuildContext context) {
    print(context);
    // 设计基于iPhone6（iPhone6 750*1334）的大小
    ScreenUtil.init(context, width: 375, height: 667, allowFontScaling: true);

    return DoubleTapBackExitApp(
      child: Scaffold(
          body: PageViewWrapper(
              changeDelegate: PageViewChangeDelegate(controller),
              pageAmount: 4,
              initialPage: controller.initialPage,
              child: PageView(
                controller: controller,
                physics: NeverScrollableScrollPhysics(),
                onPageChanged: (index) => model.value = index,
                children: <Widget>[
                  HomePage(index: 0),
                  GoodsListPage(index: 1),
                  CommonMainPage(index: 2),
                  ShoppingCartPage(index: 3),
                  MinePage(index: 4)
                ],
              )),
          bottomNavigationBar: ProviderWidget<TabsModel>(
            model: model,
            builder: (_, model, __) {
              return BottomNavigationBar(
                  currentIndex: model.value,
                  selectedFontSize: 10.0,
                  unselectedFontSize: 10.0,
                  unselectedItemColor: _defaultColor,
                  selectedItemColor: HmColors.colorMain,
                  onTap: (index) {
                    // 埋点
                    _eventTracking(index);
                    PageViewToPage.jumpToPage(index, context);
                  },
                  type: BottomNavigationBarType.fixed,
                  items: __buildDarkBottomNavigationBarItem());
            },
          )),
    );
  }
}

我的页面如下：

class MinePage extends StatefulWidget {
  final int index;
  MinePage({Key key, this.index}) : super(key: key);
  @override
  _MinePageState createState() => _MinePageState();
}

class _MinePageState extends State<MinePage>
    with
        AutomaticKeepAliveClientMixin<MinePage>,
        PageTrackerAware,
        PageViewListenerMixin {
  int get pageViewIndex => widget.index;

  MineModel model = MineModel();
  EasyRefreshController refreshController;

  @override
  void didPageView() {
    super.didPageView();
    PageViewEventTracking.pageEnter();
    model.load();
  }

  @override
  void didPageExit() {
    super.didPageExit();
    PageViewEventTracking.pageLeave(widget.index);
  }

  @override
  void initState() {
    super.initState();
    refreshController = EasyRefreshController();
  }

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
    Global.appPrecacheImage.precacheMineImages(context);
  }

  @override
  bool get wantKeepAlive => true;

  @override
  Widget build(BuildContext context) {
    super.build(context);
    double _mediaQueryTop = MediaQuery.of(context).padding.top; // padding高度
    return AnnotatedRegion(
      value: SystemUiOverlayStyle.dark,
      child: Scaffold(
          body: EasyRefresh(
        enableControlFinishRefresh: true,
        controller: refreshController,
        header: HmCustomHeader(
            bgColor: Colors.transparent,
            textColor: Colors.black87,
            extent: _mediaQueryTop + 60,
            triggerDistance: _mediaQueryTop + 70,
            showInfo: false),
        onRefresh: () async {
          await model.load();
          refreshController.finishRefresh();
        },
        child: Container(
          child: Column(
            children: <Widget>[
              ProviderWidget<MineModel>(
                model: model,
                onModelReady: (MineModel model) => model.load(),
                type: BaseType.NORMAL,
                child: Column(
                  children: <Widget>[
                    MineHeaderView(model: model),
                    MineOrderView(model: model),
                    CommonFunctionView(model: model),
                  ],
                ),
              ),
           
            ],
          ),
        ),
      )),
    );
  }
}