import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: ShowHide(),
);
}
}
class ShowHide extends StatefulWidget {
@override
_ShowHideState createState() => _ShowHideState();
}
class _ShowHideState extends State<ShowHide> {
bool visible_val = true;
void showWidget(){
setState(() {
visible_val = true;
});
}
void hideWidget(){
setState(() {
visible_val = false;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("show hide"),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
RaisedButton(
child: Text("SHOW"),
onPressed: showWidget,
),
RaisedButton(
child: Text("HIDE"),
onPressed: hideWidget,
),
Visibility(
visible: visible_val,
child: Text("This is text",
style: TextStyle(fontSize: 30.0),
),
),
],
),
),
);
}
}
'인프런 - 강의 > 플루터로 앱 만들기 고고(입문)' 카테고리의 다른 글
8 - 369 게임 (0) | 2020.04.20 |
---|---|
7 - Image insert (0) | 2020.04.20 |
5 - 기본 위젯 알아보기 (0) | 2020.04.20 |
4 - 상태변화 알아보기 (0) | 2020.04.20 |
3 - 가장 기초 알아보기 (0) | 2020.04.19 |