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Description:

system theme

system_theme

A flutter plugin to get the current system theme information

Supported platforms
Usage

Get system accent color

Contribution

Acknowlegments

Supported platforms #

Feature
Android 10+
iOS
Web
MacOs 10.4+
Windows 10+ and XBox
Linux GTK 3+

Get accent color
✔️
✔️
✔️
✔️
✔️
✔️

Listen to changes

✔️

Usage #
Import it:
import 'package:system_theme/system_theme.dart';
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Get system accent color #
Use the getter SystemTheme.accentColor.accent to get the system accent color.
final accentColor = SystemTheme.accentColor.accent;
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To reload the accent colors, use the method load():
await SystemTheme.accentColor.load();
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You can load the colors before running the app, so the colors can't be wrong at runtime:
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await SystemTheme.accentColor.load();
runApp(MyApp());
}
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Configure a fallback accent color #
To avoid unexpected outcomes at runtime, it's recommended to configure your own fallback color. The fallback color is used if the system is not able to provide the color.
void main() async {
WidgetsFlutterBinding.ensureInitialized();

SystemTheme.fallbackColor = const Color(0xFF865432);
await SystemTheme.accentColor.load();

runApp(MyApp());
}
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Listen to changes on the system accent color #
To simply listen to changes on the system accent color, use the SystemTheme.onChange stream:
SystemTheme.onChange.listen((event) {
debugPrint('Accent color changed to ${event.accentColor}');
});
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Alteratively, you can the SystemThemeBuilder widget to listen to changes on the system accent color:
SystemThemeBuilder(builder: (context, accent) {
return ColoredBox(color: accent.accentColor);
});
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Checking if accent color is supported #
The flutter/foundation package provides a defaultTargetPlatform getter, which can be used to check what platform the current app is running on.
You can check if the current platform supports accent colors using this extension method:
import 'package:flutter/foundation.dart' show defaultTargetPlatform;

void main() {
final supported = defaultTargetPlatform.supportsAccentColor;

print('Accent color is: ${supported ? 'supported' : 'not supported'} on the current platform');
}
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Contribution #
Feel free to open an issue if you find an error or make pull requests.
Acknowlegments #

@alexmercerind for the Windows implementation
@pgiacomo69 for the accent color listener
@HosamHasanRamadan for the iOS implementation