Flutter 中TabController实现底部tab切换

import 'package:flutter/material.dart';

class TabControllerPage extends StatefulWidget {
  TabControllerPage({Key key}) : super(key: key);
  _TabControllerPageState createState() => _TabControllerPageState();
}

//用with来实现
class _TabControllerPageState extends State<TabControllerPage>
    with SingleTickerProviderStateMixin {
  TabController _tabController;
  @override
  //初始化状态
  void initState() {
    // TODO: implement initState
    super.initState();
    _tabController = new TabController(vsync: this, length: 2);
    //监听索引变化
    _tabController.addListener(() {
      print(_tabController.index);
    });
  }

  //生命周期函数，组件销毁时调用
  @override
  void dispose() {
    // TODO: implement dispose
    super.dispose();
    _tabController.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("TabControllerPage"),
        bottom: TabBar(
          controller: this._tabController,
          tabs: <Widget>[
            Tab(text: "热销"),
            Tab(text: "推荐"),
          ],
        ),
      ),
      body: TabBarView(
        controller: this._tabController,
        children: <Widget>[
          Center(child: Text("热销")),
          Center(child: Text("推荐")),
        ],
      ),
    );
  }
}

实现效果：

来源：CSDN

作者：蓝枫amy

链接：https://blog.csdn.net/u014005316/article/details/104210516