import 'package:flutter/material.dart';import 'package:flutter/cupertino.dart';import 'package:carousel_pro/carousel_pro.dart';import '../plug/wlist.dart';class BodyPage extends StatefulWidget {  final int tid;  BodyPage({Key key, this.tid}) : super(key: key);  @override  State
    
      createState() => new BodyPageState();}class BodyPageState extends State
     
       {  final PageController _pageController=new PageController();  double _currentPage = 0.0;  @override  void initState() {    // TODO: implement initState    super.initState();    _pageController.addListener((){      print(_pageController);      print(_pageController.offset);    });  }  @override  void dispose() {    // TODO: implement dispose    super.dispose();    _pageController.dispose();  }//  new PageView(//  physics: const PageScrollPhysics(parent: const BouncingScrollPhysics()),//  onPageChanged: (index){//  print(index);//  },//  controller: _pageController,//  children: 
      
       [//  new Container(//  height: 200.0,//  color: Colors.blue,//  child: new Text('11')),//  new Container(//  height: 200.0,//  color: Colors.purple,//  child: new Text('22')),//  new Container(//  height: 200.0,//  color: Colors.deepPurpleAccent,//  child: new Text('3')),//  ],//  )  final String data;  final double parallaxOffset=0.0;  dom({data:"",parallaxOffset:0.0}){    return new Center(      child: new Column(        mainAxisSize: MainAxisSize.min,        children: [          new Text(            data,            style: const TextStyle(fontSize: 60.0),          ),          new SizedBox(height: 40.0),          new Transform(            transform: new Matrix4.translationValues(parallaxOffset, 0.0, 0.0),            child: const Text('Yet another line of text'),          ),        ],      ),    );  }  @override  Widget build(BuildContext context) {    print(MediaQuery.of(context).size.width - 30);    return new ListView(      padding: EdgeInsets.only(top: 0.0),      children: 
       
        [        new Container(          margin: EdgeInsets.all(15.0),          height: 200.0,          child: new SizedBox(              height: 200.0,              child:new LayoutBuilder(builder: (context, constraints) => new NotificationListener(                onNotification: (ScrollNotification note) {                  setState(() {                    _currentPage = _pageController.page;                  });                },                child: new PageView.custom(                  physics: const PageScrollPhysics(parent: const BouncingScrollPhysics()),                  controller: _pageController,                  childrenDelegate: new SliverChildBuilderDelegate( //生成widget                        (context, index){                          print("当前距离：${_currentPage}"); //当前widget 的狂傲                         return dom(data:"ww{$index}",parallaxOffset:constraints.maxWidth / 1.0 * (index - _currentPage));                        },                    childCount: 2,//个数                  ),                ),              )),          ),        ),        new Divider(),        new WlistPage(),      ],    );  }}