Created
November 17, 2022 18:15
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2D Scrolling Test
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| import 'package:flutter/material.dart'; | |
| void main() { | |
| runApp(const MyApp()); | |
| } | |
| class MyApp extends StatelessWidget { | |
| const MyApp({super.key}); | |
| // This widget is the root of your application. | |
| @override | |
| Widget build(BuildContext context) { | |
| return MaterialApp( | |
| theme: ThemeData( | |
| primarySwatch: Colors.blue, | |
| ), | |
| home: const MyHomePage(), | |
| ); | |
| } | |
| } | |
| class MyHomePage extends StatefulWidget { | |
| const MyHomePage({super.key}); | |
| @override | |
| State<MyHomePage> createState() => _MyHomePageState(); | |
| } | |
| class _MyHomePageState extends State<MyHomePage> { | |
| @override | |
| Widget build(BuildContext context) { | |
| return Container( | |
| alignment: Alignment.center, | |
| color: Colors.green, | |
| child: TextButton( | |
| onPressed: () { | |
| showDialog( | |
| context: context, | |
| builder: (BuildContext context) { | |
| return const Dialog(child: MyDialog()); | |
| }, | |
| ); | |
| }, | |
| child: const Text('Open Dialog'))); | |
| } | |
| } | |
| class MyDialog extends StatelessWidget { | |
| const MyDialog({super.key}); | |
| static const Size minSize = Size(200, 200); | |
| static const Size maxSize = Size(400, 400); | |
| @override | |
| Widget build(BuildContext context) { | |
| return LayoutBuilder( | |
| builder: (BuildContext context, BoxConstraints constraints) { | |
| final Size constrainedSize = constraints.constrain(maxSize); | |
| return SingleChildScrollView( | |
| child: SingleChildScrollView( | |
| scrollDirection: Axis.horizontal, | |
| child: SizedBox( | |
| width: constrainedSize.width < minSize.width ? minSize.width : constrainedSize.width, | |
| height: constrainedSize.height < minSize.height ? minSize.height : constrainedSize.height, | |
| child: const Placeholder(color: Colors.red), | |
| ), | |
| ), | |
| ); | |
| } | |
| ); | |
| } | |
| } |
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