相关疑难解决方法(0)

我为TabBar页面使用以下代码：

class HomePage extends StatefulWidget {


  static String tag = 'home-page';

  @override
  _homepage createState() => new _homepage();
}

class _homepage extends State<HomePage> with TickerProviderStateMixin{


  AnimationController percentageAnimationController;
  TabController _tabController;


  @override
  void initState() {
    _tabController = new TabController(length: 3, vsync: this);


    super.initState();
  }

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

  @override
  Widget build(BuildContext context) {

    return new Scaffold(

        bottomNavigationBar: new Material(
          color: Colors.white,
          child: new TabBar(
              controller: _tabController,
              indicatorColor: Theme.Colors.loginGradientStart,
              labelColor: Theme.Colors.loginGradientStart,
              tabs: <Widget>[
                new Tab(
                  icon: new Icon(wind_icon),
                ),
                new Tab( …