Created
December 26, 2022 23:49
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[Flutter tips] Themeで囲ってデフォルトのアイコンサイズを変える
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| import 'package:flutter/material.dart'; | |
| void main() => runApp(MyApp()); | |
| class MyApp extends StatelessWidget { | |
| @override | |
| Widget build(BuildContext context) { | |
| final theme = Theme.of(context); | |
| return MaterialApp( | |
| title: 'Test', | |
| debugShowCheckedModeBanner: false, | |
| theme: ThemeData( | |
| primarySwatch: Colors.blue, | |
| ), | |
| home: Card( | |
| child: Column( | |
| children: [ | |
| const Text('Default icon size.'), | |
| const Icon(Icons.usb), | |
| const SizedBox(height: 16), | |
| // Themeで囲って、デフォルトのアイコンサイズを変える | |
| const Text('Change default icon size.'), | |
| Theme( | |
| data: theme.copyWith(iconTheme: theme.iconTheme.copyWith(size: 48)), | |
| child: const Icon(Icons.usb), | |
| ), | |
| ], | |
| ), | |
| ), | |
| ); | |
| } | |
| } |
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