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Bump m3e_design to 0.2.1; add .toM3EThemeData() extension for simplified theme creation, update documentation, and refactor BuildContext extension for fallback handling.

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Emily Pauli 2025-10-25 19:00:41 +02:00
commit c6e843f238
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packages/m3e_design/README.md
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@ -19,7 +19,7 @@ cd apps/gallery
flutter run -d chrome
```
_Last updated: 2025-10-23_
_Last updated: 2025-10-25_
---
@ -40,27 +40,73 @@ dependencies:
Minimum SDK: Dart >=3.5.0.
### Quick start: add M3ETheme to ThemeData
### Quick start: one-liner theme
```dart
final base = ThemeData(colorScheme: ColorScheme.fromSeed(seedColor: Colors.teal));
final m3e = M3ETheme.defaults(base.colorScheme);
return MaterialApp(
theme: base.copyWith(extensions: [m3e]),
home: const MyHomePage(),
);
Widget buildApp() {
return MaterialApp(
theme: ColorScheme.fromSeed(seedColor: Colors.teal).toM3EThemeData(),
home: const MyHomePage(),
);
}
```
With dynamic color (Android 12+):
With dynamic color (Android 12+), setting both light and dark themes:
```dart
DynamicColorBuilder(
builder: (lightDynamic, darkDynamic) {
final scheme = lightDynamic ?? ColorScheme.fromSeed(seedColor: Colors.teal);
final base = ThemeData(colorScheme: scheme);
final m3e = M3ETheme.defaults(base.colorScheme);
return MaterialApp(theme: base.copyWith(extensions: [m3e]), home: const MyHomePage());
},
)
Widget buildDynamicApp() {
return DynamicColorBuilder(
builder: (lightDynamic, darkDynamic) {
final light = lightDynamic ?? ColorScheme.fromSeed(seedColor: Colors.teal);
final dark = darkDynamic ??
ColorScheme.fromSeed(seedColor: Colors.teal, brightness: Brightness.dark);
return MaterialApp(
theme: light.toM3EThemeData(),
darkTheme: dark.toM3EThemeData(),
home: const MyHomePage(),
);
},
);
}
```
### Alternative approach: withM3ETheme
The alternative approach is to use the withM3ETheme ThemeExtension, which is a convenience wrapper around the ThemeData constructor.
``` dart
Widget build(BuildContext context) {
return MaterialApp(
theme: withM3ETheme(
ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.teal),
useMaterial3: true,
),
),
home: const MyHomePage(),
);
}
```
``` dart
Widget build(BuildContext context) {
child: DynamicColorBuilder(
builder: (lightDynamic, darkDynamic) {
return MaterialApp(
theme: withM3ETheme(
ThemeData(
colorScheme: lightDynamic ?? App._defaultLightColorScheme,
useMaterial3: true,
),
),
darkTheme: withM3ETheme(
ThemeData(
colorScheme: darkDynamic ?? App._defaultDarkColorScheme,
useMaterial3: true,
brightness: Brightness.dark,
),
),
home: const MyHomePage(),
);
},
),
}
```
### Token overview