392 lines
14 KiB
Dart
392 lines
14 KiB
Dart
/// Material 3 light and dark themes — charcoal surfaces, mint accent.
|
|
library;
|
|
|
|
import 'package:flutter/material.dart';
|
|
import 'package:flutter/services.dart';
|
|
|
|
/// Builds the [ThemeData] used by [MaterialApp] for light and dark mode.
|
|
abstract final class AppTheme {
|
|
/// Mint / emerald accent from the product look.
|
|
static const Color accent = Color(0xFF4FA894);
|
|
|
|
/// Soft rose for expenses / money out.
|
|
static const Color expense = Color(0xFFE07A7A);
|
|
|
|
/// Near-black charcoal scaffold (dark).
|
|
static const Color darkCanvas = Color(0xFF0B0D0C);
|
|
|
|
static const Color darkSurface = Color(0xFF141716);
|
|
|
|
static const Color darkContainer = Color(0xFF1E2321);
|
|
|
|
static const Color darkContainerHigh = Color(0xFF2A302D);
|
|
|
|
static ThemeData light() => _build(Brightness.light);
|
|
|
|
static ThemeData dark() => _build(Brightness.dark);
|
|
|
|
static ColorScheme _scheme(Brightness brightness) {
|
|
if (brightness == Brightness.dark) {
|
|
return const ColorScheme.dark(
|
|
primary: accent,
|
|
onPrimary: Color(0xFF06201A),
|
|
primaryContainer: Color(0xFF1F4F44),
|
|
onPrimaryContainer: Color(0xFFB8E6D8),
|
|
secondary: Color(0xFF8FB5AB),
|
|
onSecondary: Color(0xFF0B1F1A),
|
|
secondaryContainer: Color(0xFF2A403A),
|
|
onSecondaryContainer: Color(0xFFD0E8E0),
|
|
tertiary: expense,
|
|
onTertiary: Color(0xFF2A0F0F),
|
|
tertiaryContainer: Color(0xFF5C2E2E),
|
|
onTertiaryContainer: Color(0xFFFFDAD6),
|
|
error: expense,
|
|
onError: Color(0xFF2A0F0F),
|
|
errorContainer: Color(0xFF5C2E2E),
|
|
onErrorContainer: Color(0xFFFFDAD6),
|
|
surface: darkSurface,
|
|
onSurface: Color(0xFFE8EEEC),
|
|
onSurfaceVariant: Color(0xFFA3AFA9),
|
|
surfaceContainerLowest: darkCanvas,
|
|
surfaceContainerLow: Color(0xFF171B19),
|
|
surfaceContainer: darkContainer,
|
|
surfaceContainerHigh: darkContainerHigh,
|
|
surfaceContainerHighest: Color(0xFF343B38),
|
|
outline: Color(0xFF6B7671),
|
|
outlineVariant: Color(0xFF3A423E),
|
|
shadow: Colors.black,
|
|
scrim: Colors.black,
|
|
inverseSurface: Color(0xFFE8EEEC),
|
|
onInverseSurface: Color(0xFF1A1F1D),
|
|
inversePrimary: Color(0xFF0F766E),
|
|
);
|
|
}
|
|
|
|
return ColorScheme.fromSeed(
|
|
seedColor: accent,
|
|
brightness: Brightness.light,
|
|
primary: const Color(0xFF1F6B5C),
|
|
error: const Color(0xFFC45C5C),
|
|
).copyWith(
|
|
surface: const Color(0xFFF4F7F5),
|
|
surfaceContainerLowest: const Color(0xFFFFFFFF),
|
|
surfaceContainerLow: const Color(0xFFEEF3F0),
|
|
surfaceContainer: const Color(0xFFE6EDE9),
|
|
surfaceContainerHigh: const Color(0xFFDCE6E1),
|
|
surfaceContainerHighest: const Color(0xFFD0DCD6),
|
|
onSurface: const Color(0xFF15201C),
|
|
onSurfaceVariant: const Color(0xFF4A5A54),
|
|
outline: const Color(0xFF7A8A83),
|
|
outlineVariant: const Color(0xFFC5D0CB),
|
|
tertiary: expense,
|
|
error: expense,
|
|
);
|
|
}
|
|
|
|
static ThemeData _build(Brightness brightness) {
|
|
final colorScheme = _scheme(brightness);
|
|
final isDark = brightness == Brightness.dark;
|
|
final textTheme = _textTheme(colorScheme);
|
|
const radius = 14.0;
|
|
const radiusLg = 18.0;
|
|
|
|
return ThemeData(
|
|
useMaterial3: true,
|
|
brightness: brightness,
|
|
colorScheme: colorScheme,
|
|
textTheme: textTheme,
|
|
scaffoldBackgroundColor:
|
|
isDark ? darkCanvas : colorScheme.surfaceContainerLowest,
|
|
canvasColor: isDark ? darkCanvas : colorScheme.surface,
|
|
appBarTheme: AppBarTheme(
|
|
centerTitle: false,
|
|
elevation: 0,
|
|
scrolledUnderElevation: 0,
|
|
backgroundColor: isDark ? darkCanvas : colorScheme.surfaceContainerLowest,
|
|
foregroundColor: colorScheme.onSurface,
|
|
titleTextStyle: textTheme.titleLarge,
|
|
systemOverlayStyle: isDark
|
|
? SystemUiOverlayStyle.light.copyWith(
|
|
statusBarColor: Colors.transparent,
|
|
systemNavigationBarColor: darkCanvas,
|
|
)
|
|
: SystemUiOverlayStyle.dark.copyWith(
|
|
statusBarColor: Colors.transparent,
|
|
),
|
|
),
|
|
cardTheme: CardThemeData(
|
|
elevation: 0,
|
|
color: colorScheme.surfaceContainer,
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(radiusLg),
|
|
),
|
|
clipBehavior: Clip.antiAlias,
|
|
margin: EdgeInsets.zero,
|
|
),
|
|
navigationBarTheme: NavigationBarThemeData(
|
|
elevation: 0,
|
|
height: 72,
|
|
backgroundColor: isDark ? darkSurface : colorScheme.surfaceContainer,
|
|
indicatorColor: colorScheme.primary.withValues(alpha: 0.22),
|
|
labelTextStyle: WidgetStateProperty.resolveWith((states) {
|
|
final selected = states.contains(WidgetState.selected);
|
|
return textTheme.labelMedium?.copyWith(
|
|
fontWeight: selected ? FontWeight.w600 : FontWeight.w500,
|
|
color: selected ? colorScheme.primary : colorScheme.onSurfaceVariant,
|
|
);
|
|
}),
|
|
iconTheme: WidgetStateProperty.resolveWith((states) {
|
|
final selected = states.contains(WidgetState.selected);
|
|
return IconThemeData(
|
|
color: selected ? colorScheme.primary : colorScheme.onSurfaceVariant,
|
|
);
|
|
}),
|
|
),
|
|
inputDecorationTheme: InputDecorationTheme(
|
|
filled: true,
|
|
fillColor: colorScheme.surfaceContainerHigh,
|
|
border: OutlineInputBorder(
|
|
borderRadius: BorderRadius.circular(radius),
|
|
borderSide: BorderSide.none,
|
|
),
|
|
enabledBorder: OutlineInputBorder(
|
|
borderRadius: BorderRadius.circular(radius),
|
|
borderSide: BorderSide(
|
|
color: colorScheme.outlineVariant.withValues(alpha: 0.6),
|
|
),
|
|
),
|
|
focusedBorder: OutlineInputBorder(
|
|
borderRadius: BorderRadius.circular(radius),
|
|
borderSide: BorderSide(color: colorScheme.primary, width: 1.5),
|
|
),
|
|
contentPadding: const EdgeInsets.symmetric(
|
|
horizontal: 16,
|
|
vertical: 14,
|
|
),
|
|
hintStyle: textTheme.bodyMedium?.copyWith(
|
|
color: colorScheme.onSurfaceVariant.withValues(alpha: 0.75),
|
|
),
|
|
),
|
|
filledButtonTheme: FilledButtonThemeData(
|
|
style: FilledButton.styleFrom(
|
|
minimumSize: const Size.fromHeight(48),
|
|
backgroundColor: colorScheme.primary,
|
|
foregroundColor: colorScheme.onPrimary,
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(radius),
|
|
),
|
|
textStyle: textTheme.labelLarge?.copyWith(fontWeight: FontWeight.w700),
|
|
),
|
|
),
|
|
textButtonTheme: TextButtonThemeData(
|
|
style: TextButton.styleFrom(
|
|
foregroundColor: colorScheme.primary,
|
|
textStyle: textTheme.labelLarge,
|
|
),
|
|
),
|
|
outlinedButtonTheme: OutlinedButtonThemeData(
|
|
style: OutlinedButton.styleFrom(
|
|
foregroundColor: colorScheme.onSurface,
|
|
side: BorderSide(color: colorScheme.outlineVariant),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(radius),
|
|
),
|
|
minimumSize: const Size(48, 44),
|
|
),
|
|
),
|
|
iconButtonTheme: IconButtonThemeData(
|
|
style: IconButton.styleFrom(
|
|
foregroundColor: colorScheme.onSurfaceVariant,
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(12),
|
|
),
|
|
),
|
|
),
|
|
floatingActionButtonTheme: FloatingActionButtonThemeData(
|
|
backgroundColor: colorScheme.primary,
|
|
foregroundColor: colorScheme.onPrimary,
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(radiusLg),
|
|
),
|
|
),
|
|
dividerTheme: DividerThemeData(
|
|
color: colorScheme.outlineVariant.withValues(alpha: 0.55),
|
|
space: 1,
|
|
thickness: 1,
|
|
),
|
|
snackBarTheme: SnackBarThemeData(
|
|
behavior: SnackBarBehavior.floating,
|
|
backgroundColor: colorScheme.inverseSurface,
|
|
contentTextStyle: textTheme.bodyMedium?.copyWith(
|
|
color: colorScheme.onInverseSurface,
|
|
),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(radius),
|
|
),
|
|
),
|
|
listTileTheme: ListTileThemeData(
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(radius),
|
|
),
|
|
iconColor: colorScheme.primary,
|
|
textColor: colorScheme.onSurface,
|
|
),
|
|
chipTheme: ChipThemeData(
|
|
backgroundColor: colorScheme.surfaceContainerHigh,
|
|
selectedColor: colorScheme.primary.withValues(alpha: 0.28),
|
|
deleteIconColor: colorScheme.onSurfaceVariant,
|
|
labelStyle: textTheme.labelLarge?.copyWith(fontWeight: FontWeight.w600),
|
|
secondaryLabelStyle: textTheme.labelMedium,
|
|
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 0),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(20),
|
|
side: BorderSide(
|
|
color: colorScheme.outlineVariant.withValues(alpha: 0.5),
|
|
),
|
|
),
|
|
side: BorderSide(
|
|
color: colorScheme.outlineVariant.withValues(alpha: 0.5),
|
|
),
|
|
),
|
|
dialogTheme: DialogThemeData(
|
|
backgroundColor: colorScheme.surfaceContainer,
|
|
surfaceTintColor: Colors.transparent,
|
|
elevation: 8,
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(24),
|
|
),
|
|
titleTextStyle: textTheme.titleLarge,
|
|
contentTextStyle: textTheme.bodyMedium,
|
|
),
|
|
bottomSheetTheme: BottomSheetThemeData(
|
|
backgroundColor: colorScheme.surfaceContainer,
|
|
surfaceTintColor: Colors.transparent,
|
|
elevation: 8,
|
|
shape: const RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.vertical(top: Radius.circular(24)),
|
|
),
|
|
dragHandleColor: colorScheme.outlineVariant,
|
|
showDragHandle: true,
|
|
),
|
|
// Avoid textStyle here — SegmentedButton lerps selected/unselected styles
|
|
// and crashes if inherit flags disagree.
|
|
segmentedButtonTheme: SegmentedButtonThemeData(
|
|
style: ButtonStyle(
|
|
backgroundColor: WidgetStateProperty.resolveWith((states) {
|
|
if (states.contains(WidgetState.selected)) {
|
|
return colorScheme.primary;
|
|
}
|
|
return colorScheme.surfaceContainerHigh;
|
|
}),
|
|
foregroundColor: WidgetStateProperty.resolveWith((states) {
|
|
if (states.contains(WidgetState.selected)) {
|
|
return colorScheme.onPrimary;
|
|
}
|
|
return colorScheme.onSurfaceVariant;
|
|
}),
|
|
side: WidgetStatePropertyAll(
|
|
BorderSide(color: colorScheme.outlineVariant.withValues(alpha: 0.7)),
|
|
),
|
|
shape: WidgetStatePropertyAll(
|
|
RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(12),
|
|
),
|
|
),
|
|
visualDensity: VisualDensity.compact,
|
|
),
|
|
),
|
|
sliderTheme: SliderThemeData(
|
|
activeTrackColor: colorScheme.primary,
|
|
inactiveTrackColor: colorScheme.outlineVariant.withValues(alpha: 0.5),
|
|
thumbColor: colorScheme.primary,
|
|
overlayColor: colorScheme.primary.withValues(alpha: 0.16),
|
|
rangeThumbShape: const RoundRangeSliderThumbShape(enabledThumbRadius: 8),
|
|
trackHeight: 4,
|
|
),
|
|
checkboxTheme: CheckboxThemeData(
|
|
fillColor: WidgetStateProperty.resolveWith((states) {
|
|
if (states.contains(WidgetState.selected)) {
|
|
return colorScheme.primary;
|
|
}
|
|
return Colors.transparent;
|
|
}),
|
|
checkColor: WidgetStatePropertyAll(colorScheme.onPrimary),
|
|
side: BorderSide(color: colorScheme.outline, width: 1.5),
|
|
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(4)),
|
|
),
|
|
progressIndicatorTheme: ProgressIndicatorThemeData(
|
|
color: colorScheme.primary,
|
|
linearTrackColor: colorScheme.outlineVariant.withValues(alpha: 0.35),
|
|
),
|
|
shadowColor: isDark ? Colors.black : const Color(0x1A0F172A),
|
|
);
|
|
}
|
|
|
|
/// Built from Material 2021 typography so every style shares `inherit: false`
|
|
/// and theme animations / SegmentedButton can lerp safely.
|
|
static TextTheme _textTheme(ColorScheme colors) {
|
|
final base = Typography.material2021().englishLike.apply(
|
|
bodyColor: colors.onSurface,
|
|
displayColor: colors.onSurface,
|
|
);
|
|
|
|
return base.copyWith(
|
|
displaySmall: base.displaySmall?.copyWith(
|
|
fontSize: 36,
|
|
fontWeight: FontWeight.w700,
|
|
letterSpacing: -0.6,
|
|
),
|
|
headlineMedium: base.headlineMedium?.copyWith(
|
|
fontSize: 28,
|
|
fontWeight: FontWeight.w600,
|
|
letterSpacing: -0.4,
|
|
),
|
|
titleLarge: base.titleLarge?.copyWith(
|
|
fontSize: 22,
|
|
fontWeight: FontWeight.w600,
|
|
letterSpacing: -0.2,
|
|
),
|
|
titleMedium: base.titleMedium?.copyWith(
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.w600,
|
|
),
|
|
titleSmall: base.titleSmall?.copyWith(
|
|
fontSize: 14,
|
|
fontWeight: FontWeight.w600,
|
|
),
|
|
bodyLarge: base.bodyLarge?.copyWith(
|
|
fontSize: 16,
|
|
height: 1.4,
|
|
fontWeight: FontWeight.w500,
|
|
),
|
|
bodyMedium: base.bodyMedium?.copyWith(
|
|
fontSize: 14,
|
|
height: 1.4,
|
|
color: colors.onSurfaceVariant,
|
|
),
|
|
bodySmall: base.bodySmall?.copyWith(
|
|
fontSize: 12,
|
|
height: 1.35,
|
|
color: colors.onSurfaceVariant,
|
|
),
|
|
labelLarge: base.labelLarge?.copyWith(
|
|
fontSize: 14,
|
|
fontWeight: FontWeight.w600,
|
|
letterSpacing: 0.1,
|
|
),
|
|
labelMedium: base.labelMedium?.copyWith(
|
|
fontSize: 12,
|
|
fontWeight: FontWeight.w500,
|
|
letterSpacing: 0.2,
|
|
color: colors.onSurfaceVariant,
|
|
),
|
|
labelSmall: base.labelSmall?.copyWith(
|
|
fontSize: 11,
|
|
fontWeight: FontWeight.w500,
|
|
letterSpacing: 0.3,
|
|
color: colors.onSurfaceVariant,
|
|
),
|
|
);
|
|
}
|
|
}
|