13 - 커플게임 3

import 'package:flutter/material.dart';

class TabOne extends StatefulWidget {
  @override
  _TabOneState createState() => _TabOneState();
}

class _TabOneState extends State<TabOne> {

  String text = "게임 시작해보세요!";

  void changeText(){
    setState(() {
      text = "변경된 텍스트";
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body : Center(
        child: Text(text,
          style: TextStyle(
            fontSize: 40.0
          ),
        ),
      ),
      floatingActionButton: FloatingActionButton(
        child: Icon(Icons.info),
        onPressed: changeText,
      ),
    );
  }
}

import 'package:flutter/material.dart';
import 'package:flutterappssssss/Tab_one.dart';
import 'package:flutterappssssss/Tab_three.dart';
import 'package:flutterappssssss/Tab_two.dart';

class Home extends StatefulWidget {
  @override
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> {

  int _slectedTab = 0;
  List<Widget> _widgets = <Widget>[
    tab_one(),
    tab_two(),
    tab_three(),
  ];

  void _Tapped(int index) {
    setState(() {
      _slectedTab = index;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: _widgets.elementAt(_slectedTab),
      ),
      bottomNavigationBar: BottomNavigationBar(
        items: <BottomNavigationBarItem>[
          BottomNavigationBarItem(
            icon: Icon(Icons.bubble_chart, color: Colors.blue,),
            title: Text('초급', style: TextStyle(color: Colors.blue),),
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.bubble_chart, color: Colors.pink,),
            title: Text('중급', style: TextStyle(color: Colors.pink),),
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.bubble_chart, color: Colors.red,),
            title: Text('고급', style: TextStyle(color: Colors.red),),
          )
        ],
        currentIndex: _slectedTab,
        onTap: _Tapped,
      ),

    );
  }
}