material_expressive 0.2.0 
material_expressive: ^0.2.0 copied to clipboard
venx.siteA complete expressive design system for Flutter — tokens, motion, shapes, theme generation, adaptive layouts, loading indicators, animated icons, and screen templates.
example/main.dart
import 'package:flutter/material.dart';
import 'package:material_expressive/material_expressive.dart';
void main() {
runApp(const ExpressiveExampleApp());
}
class ExpressiveExampleApp extends StatefulWidget {
const ExpressiveExampleApp({super.key});
@override
State<ExpressiveExampleApp> createState() => _ExpressiveExampleAppState();
}
class _ExpressiveExampleAppState extends State<ExpressiveExampleApp> {
Color _seedColor = Colors.deepOrange;
var _shapeType = ExpressiveShapeType.organic;
var _isDark = false;
@override
Widget build(BuildContext context) {
final theme = ExpressiveTheme.fromSeed(
seedColor: _seedColor,
shapeType: _shapeType,
);
return ExpressiveThemeProvider(
themeData: theme,
child: MaterialApp(
title: 'Material Expressive Demo',
debugShowCheckedModeBanner: false,
theme: ExpressiveComponentThemes.applyExpressive(theme.materialTheme),
darkTheme: ExpressiveComponentThemes.applyExpressive(
theme.materialDarkTheme,
),
themeMode: _isDark ? ThemeMode.dark : ThemeMode.light,
home: _HomePage(
seedColor: _seedColor,
shapeType: _shapeType,
onSeedChanged: (c) => setState(() => _seedColor = c),
onShapeChanged: (s) => setState(() => _shapeType = s),
onToggleDark: () => setState(() => _isDark = !_isDark),
),
),
);
}
}
class _HomePage extends StatefulWidget {
const _HomePage({
required this.seedColor,
required this.shapeType,
required this.onSeedChanged,
required this.onShapeChanged,
required this.onToggleDark,
});
final Color seedColor;
final ExpressiveShapeType shapeType;
final ValueChanged<Color> onSeedChanged;
final ValueChanged<ExpressiveShapeType> onShapeChanged;
final VoidCallback onToggleDark;
@override
State<_HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<_HomePage> {
var _isMenuOpen = false;
var _isLiked = false;
var _isPlaying = false;
var _selectedButton = 0;
var _currentShapeIndex = 0;
var _springActive = false;
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
final scheme = theme.colorScheme;
return Scaffold(
appBar: AppBar(
title: const Text('Material Expressive'),
actions: [
IconButton(
icon: const Icon(Icons.dark_mode),
onPressed: widget.onToggleDark,
),
],
),
endDrawer: const TokenInspector(),
floatingActionButton: FloatingActionButton(
onPressed: () {},
child: const Icon(Icons.add),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
// -- Seed color --
Text('Seed Color', style: theme.textTheme.titleMedium),
const SizedBox(height: 8),
Wrap(
spacing: 8,
runSpacing: 8,
children:
[
Colors.deepOrange,
Colors.blue,
Colors.teal,
Colors.purple,
Colors.green,
Colors.pink,
]
.map(
(c) => GestureDetector(
onTap: () => widget.onSeedChanged(c),
child: CircleAvatar(
radius: 20,
backgroundColor: c,
child: widget.seedColor == c
? const Icon(
Icons.check,
color: Colors.white,
size: 16,
)
: null,
),
),
)
.toList(),
),
const SizedBox(height: 24),
// -- Shape type --
Text('Shape Type', style: theme.textTheme.titleMedium),
const SizedBox(height: 8),
SegmentedButton<ExpressiveShapeType>(
segments: const [
ButtonSegment(
value: ExpressiveShapeType.rounded,
label: Text('Rounded'),
),
ButtonSegment(
value: ExpressiveShapeType.squircle,
label: Text('Squircle'),
),
ButtonSegment(
value: ExpressiveShapeType.organic,
label: Text('Organic'),
),
],
selected: {widget.shapeType},
onSelectionChanged: (s) => widget.onShapeChanged(s.first),
),
const SizedBox(height: 32),
// -- Shape Morphing --
Text('Shape Morphing', style: theme.textTheme.titleLarge),
const SizedBox(height: 4),
Text('Tap to morph between shapes', style: theme.textTheme.bodySmall),
const SizedBox(height: 12),
Center(
child: GestureDetector(
onTap: () => setState(() {
_currentShapeIndex =
(_currentShapeIndex + 1) % MaterialShapes.allNames.length;
}),
child: Column(
children: [
ShapeMorph(
shape: MaterialShapes.byName(
MaterialShapes.allNames[_currentShapeIndex],
),
size: 120,
color: scheme.primary,
duration: const Duration(milliseconds: 600),
curve: Curves.easeInOut,
),
const SizedBox(height: 8),
Text(
MaterialShapes.allNames[_currentShapeIndex],
style: theme.textTheme.labelLarge,
),
],
),
),
),
const SizedBox(height: 16),
// Static shape grid
Wrap(
spacing: 10,
runSpacing: 10,
children:
[
'heart',
'flower',
'clover4Leaf',
'boom',
'sunny',
'gem',
'cookie6Sided',
'diamond',
]
.map(
(name) => Container(
width: 48,
height: 48,
decoration: ShapeDecoration(
color: scheme.tertiaryContainer,
shape: MorphableShapeBorder(
points: MaterialShapes.byName(name),
),
),
),
)
.toList(),
),
const SizedBox(height: 32),
// -- Spring Physics --
Text('Spring Physics', style: theme.textTheme.titleLarge),
const SizedBox(height: 12),
Center(
child: GestureDetector(
onTap: () => setState(() => _springActive = !_springActive),
child: SpringTransition(
isActive: _springActive,
spring: MotionScheme.expressive.defaultSpatial,
scaleActive: 1.3,
scaleInactive: 1.0,
child: Container(
width: 80,
height: 80,
decoration: BoxDecoration(
color: scheme.secondaryContainer,
borderRadius: BorderRadius.circular(20),
),
child: Center(
child: Text(
_springActive ? '🎉' : '👆',
style: const TextStyle(fontSize: 32),
),
),
),
),
),
),
const SizedBox(height: 8),
Center(
child: Text(
'Tap for spring bounce',
style: theme.textTheme.bodySmall,
),
),
const SizedBox(height: 32),
// -- Button Group --
Text('Button Group', style: theme.textTheme.titleLarge),
const SizedBox(height: 12),
ExpressiveButtonGroup(
buttons: const [
ExpressiveButtonGroupItem(label: 'Day', icon: Icons.today),
ExpressiveButtonGroupItem(label: 'Week', icon: Icons.view_week),
ExpressiveButtonGroupItem(
label: 'Month',
icon: Icons.calendar_month,
),
],
selectedIndex: _selectedButton,
onSelected: (i) => setState(() => _selectedButton = i),
),
const SizedBox(height: 32),
// -- Split Button --
Text('Split Button', style: theme.textTheme.titleLarge),
const SizedBox(height: 12),
ExpressiveSplitButton(
label: 'Save',
icon: Icons.save,
onPressed: () {},
onDropdown: () {},
),
const SizedBox(height: 32),
// -- Floating Toolbar --
Text('Floating Toolbar', style: theme.textTheme.titleLarge),
const SizedBox(height: 12),
Center(
child: ExpressiveFloatingToolbar(
items: [
FloatingToolbarItem(
icon: Icons.format_bold,
isSelected: true,
onPressed: () {},
),
FloatingToolbarItem(
icon: Icons.format_italic,
onPressed: () {},
),
FloatingToolbarItem(
icon: Icons.format_underline,
onPressed: () {},
),
const FloatingToolbarItem.divider(),
FloatingToolbarItem(icon: Icons.link, onPressed: () {}),
FloatingToolbarItem(icon: Icons.image, onPressed: () {}),
],
),
),
const SizedBox(height: 32),
// -- Loading Indicators --
Text('Loading Indicators', style: theme.textTheme.titleLarge),
const SizedBox(height: 12),
const Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Column(
children: [
ContainedLoadingIndicator(segments: 4),
SizedBox(height: 8),
Text('Contained'),
],
),
Column(
children: [
OrganicLoadingIndicator(),
SizedBox(height: 8),
Text('Organic'),
],
),
Column(
children: [
PulsingDotsIndicator(),
SizedBox(height: 8),
Text('Pulsing'),
],
),
Column(
children: [
MorphingShapeIndicator(),
SizedBox(height: 8),
Text('Morphing'),
],
),
],
),
const SizedBox(height: 32),
// -- Animated Icons --
Text('Animated Icons', style: theme.textTheme.titleLarge),
const SizedBox(height: 12),
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Column(
children: [
ExpressiveAnimatedIcon(
icon: AnimatedIcons.menu_close,
isActive: _isMenuOpen,
onPressed: () =>
setState(() => _isMenuOpen = !_isMenuOpen),
),
const Text('Menu'),
],
),
Column(
children: [
BouncingIcon(
icon: Icons.favorite_border,
activeIcon: Icons.favorite,
isActive: _isLiked,
activeColor: Colors.red,
onPressed: () => setState(() => _isLiked = !_isLiked),
),
const Text('Like'),
],
),
Column(
children: [
MorphingIcon(
icon: Icons.play_arrow,
activeIcon: Icons.pause,
isActive: _isPlaying,
onPressed: () =>
setState(() => _isPlaying = !_isPlaying),
),
const Text('Play'),
],
),
Column(
children: [
HoverIcon(
icon: Icons.settings,
tooltip: 'Settings',
onPressed: () {},
),
const Text('Hover'),
],
),
],
),
),
),
const SizedBox(height: 32),
// -- Surfaces --
Text('Surfaces', style: theme.textTheme.titleLarge),
const SizedBox(height: 12),
const Wrap(
spacing: 10,
runSpacing: 10,
children: [
_SurfaceChip('Primary', ExpressiveSurfaceType.primaryTinted),
_SurfaceChip('Secondary', ExpressiveSurfaceType.secondaryTinted),
_SurfaceChip('Tertiary', ExpressiveSurfaceType.tertiaryTinted),
_SurfaceChip('Container', ExpressiveSurfaceType.container),
_SurfaceChip('High', ExpressiveSurfaceType.containerHigh),
],
),
const SizedBox(height: 32),
// -- State Layer --
Text('State Layer', style: theme.textTheme.titleLarge),
const SizedBox(height: 12),
ExpressiveStateLayer(
onTap: () {},
child: Card(
child: Padding(
padding: const EdgeInsets.all(24),
child: Center(
child: Text(
'Press for scale animation',
style: theme.textTheme.bodyLarge,
),
),
),
),
),
const SizedBox(height: 80),
],
),
);
}
}
class _SurfaceChip extends StatelessWidget {
const _SurfaceChip(this.label, this.type);
final String label;
final ExpressiveSurfaceType type;
@override
Widget build(BuildContext context) {
return ExpressiveSurface(
type: type,
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
borderRadius: BorderRadius.circular(12),
child: Text(label, style: Theme.of(context).textTheme.labelMedium),
);
}
}Metadata
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Metadata
A complete expressive design system for Flutter — tokens, motion, shapes, theme generation, adaptive layouts, loading indicators, animated icons, and screen templates.
Repository (GitHub)
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Topics
#design-system #material-design #theming #animation #ui
License
unknown (license)