selfprivacy.org.app/lib/theming/factory/app_theme_factory.dart

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import 'package:dynamic_color/dynamic_color.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:material_color_utilities/palettes/core_palette.dart';
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abstract class AppThemeFactory {
AppThemeFactory._();
static Future<ThemeData> create({
required final bool isDark,
required final Color fallbackColor,
}) =>
_createAppTheme(
isDark: isDark,
fallbackColor: fallbackColor,
);
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static Future<ThemeData> _createAppTheme({
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required final Color fallbackColor,
final bool isDark = false,
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}) async {
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final Brightness brightness = isDark ? Brightness.dark : Brightness.light;
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final ColorScheme? dynamicColorsScheme =
await _getDynamicColors(brightness);
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final Color? accentColor = await _getAccentColor();
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final ColorScheme fallbackColorScheme = ColorScheme.fromSeed(
seedColor: accentColor ?? fallbackColor,
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brightness: brightness,
);
final ColorScheme colorScheme = dynamicColorsScheme ?? fallbackColorScheme;
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final Typography appTypography = Typography.material2021();
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final ThemeData materialThemeData = ThemeData(
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visualDensity: VisualDensity.adaptivePlatformDensity,
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colorScheme: colorScheme,
brightness: colorScheme.brightness,
typography: appTypography,
useMaterial3: true,
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scaffoldBackgroundColor: colorScheme.background,
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);
return materialThemeData;
}
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static Future<ColorScheme?> _getDynamicColors(final Brightness brightness) {
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try {
return DynamicColorPlugin.getCorePalette().then(
(final corePallete) =>
corePallete?.toColorScheme(brightness: brightness),
);
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} on PlatformException {
return Future.value(null);
}
}
static Future<Color?> _getAccentColor() {
try {
return DynamicColorPlugin.getAccentColor();
} on PlatformException {
return Future.value(null);
}
}
static Future<CorePalette?> getCorePalette() async {
try {
return await DynamicColorPlugin.getCorePalette();
} on PlatformException {
return Future.value(null);
}
}
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}