flutter简单的2个页面左右滑动,使用PageView和PageController

flutter简单的2个页面左右滑动,使用PageView和PageController

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  late PageController _pageController;

  @override
  void initState() {
    super.initState();
    _pageController = PageController(
      initialPage: 1, // 初始页面为页面2
    );
    _pageController.addListener(() {
      print(_pageController.offset);
    });
  }

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('左右滑动页面'),
      ),
      body: PageView(
        controller: _pageController,
        children: <Widget>[
          Container(
            color: Colors.blue,
            child: Center(
              child: Text('页面 1'),
            ),
          ),
          Container(
            color: Colors.green,
            child: Center(
              child: Text('页面 2'),
            ),
          ),
        ],
      ),
    );
  }
}