import 'package:flutter/material.dart';
import 'tab_keep_state.dart';
import 'tab_test.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: KeepStateDemo(),
    );
  }
}

class KeepStateDemo extends StatefulWidget {
  KeepStateDemo({Key key}) : super(key: key);

  @override
  _KeepStateDemoState createState() {
    return _KeepStateDemoState();
  }
}

class _KeepStateDemoState extends State<KeepStateDemo> with SingleTickerProviderStateMixin {
  TabController  _tabController;
  @override
  void initState() {
    _tabController = TabController(
      length: 3,
      vsync: this,
    );
    super.initState();
  }
  @override
  void dispose() {
    _tabController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return Scaffold(
      appBar: AppBar(
        title: Text("keepstatedemo"),
      ),
      body: Center(
        child:Column(
          children: [
            RaisedButton(
            child: Text("跳转保持页面的tab"),
              onPressed: (){

              Navigator.of(context).push(MaterialPageRoute(builder: (BuildContext context){
                return TabKeepState();
              }));

              },
            ),

            RaisedButton(
              child: Text("跳转不"
                  "保持页面的tab"),
              onPressed: (){

                Navigator.of(context).push(MaterialPageRoute(builder: (BuildContext context){

                  return TabTest();


                }));

              },
            ),
          ],
        ),
      )
    );
  }

}