liquid_glacier 0.0.2 
liquid_glacier: ^0.0.2 copied to clipboard
Apple Liquid Glass design for Flutter Material widgets. Features translucent surfaces, dynamic blur effects, subtle reflections, and depth-based layering.
import 'package:flutter/material.dart';
import 'package:liquid_glacier/liquid_glacier.dart';
void main() {
runApp(const LiquidGlassExampleApp());
}
// ============================================================================
// ROOT APP WIDGET
// ============================================================================
// Holds the MaterialApp at the top level so ScaffoldMessenger is available
// to all descendants.
// ============================================================================
class LiquidGlassExampleApp extends StatefulWidget {
const LiquidGlassExampleApp({super.key});
@override
State<LiquidGlassExampleApp> createState() => _LiquidGlassExampleAppState();
}
enum ThemeColor { purple, blue, teal, orange, pink }
class _LiquidGlassExampleAppState extends State<LiquidGlassExampleApp> {
ThemeColor _selectedColor = ThemeColor.purple;
Color get _seedColor {
switch (_selectedColor) {
case ThemeColor.purple:
return Colors.deepPurple;
case ThemeColor.blue:
return Colors.blue;
case ThemeColor.teal:
return Colors.teal;
case ThemeColor.orange:
return Colors.deepOrange;
case ThemeColor.pink:
return Colors.pink;
}
}
void _onColorChanged(ThemeColor color) {
setState(() => _selectedColor = color);
}
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(
seedColor: _seedColor,
brightness: Brightness.dark,
),
useMaterial3: true,
),
home: LiquidGlassTheme(
data: const LiquidGlassThemeData(
blurSigma: 25,
opacity: 0.12,
borderWidth: 1,
),
child: LiquidGlassDemo(
seedColor: _seedColor,
selectedColor: _selectedColor,
onColorChanged: _onColorChanged,
),
),
);
}
}
// ============================================================================
// DEMO CONTENT WIDGET
// ============================================================================
// The main demo content that showcases all Liquid Glass widgets.
// Now has access to ScaffoldMessenger via the context.
// ============================================================================
class LiquidGlassDemo extends StatefulWidget {
const LiquidGlassDemo({
required this.seedColor,
required this.selectedColor,
required this.onColorChanged,
super.key,
});
final Color seedColor;
final ThemeColor selectedColor;
final ValueChanged<ThemeColor> onColorChanged;
@override
State<LiquidGlassDemo> createState() => _LiquidGlassDemoState();
}
class _LiquidGlassDemoState extends State<LiquidGlassDemo> {
int _selectedIndex = 0;
final TextEditingController _textController = TextEditingController();
@override
void dispose() {
_textController.dispose();
super.dispose();
}
/// Shows a Liquid Glass SnackBar with the given message.
void _showSnackBar(String message) {
// Now context is below MaterialApp, so ScaffoldMessenger is available!
showLiquidGlassSnackBar(
context: context,
message: message,
type: LiquidGlassSnackBarType.info,
);
}
Widget _buildSection(String title) {
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
title,
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.w600,
letterSpacing: 1.2,
color: Colors.white.withValues(alpha: 0.6),
),
),
const SizedBox(height: 12),
],
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
extendBody: true,
backgroundColor: Colors.transparent,
extendBodyBehindAppBar: true,
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [
widget.seedColor.withValues(
alpha: 0.2,
), // Dynamic background based on selection
const Color(0xFF16213e),
const Color(0xFF0f3460),
widget.seedColor.withValues(alpha: 0.4),
],
),
),
child: SafeArea(
child: SingleChildScrollView(
padding: const EdgeInsets.all(20),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
const SizedBox(height: 20),
// Title
const Text(
'Liquid Glacier',
style: TextStyle(
fontSize: 32,
fontWeight: FontWeight.bold,
color: Colors.white,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Text(
'Apple-inspired glassmorphism for Flutter',
style: TextStyle(
fontSize: 16,
color: Colors.white.withValues(alpha: 0.7),
),
textAlign: TextAlign.center,
),
const SizedBox(height: 40),
// Theme Selector (Radio Buttons)
_buildSection('Theme Color'),
LiquidGlassContainer(
padding: const EdgeInsets.symmetric(
horizontal: 20,
vertical: 16,
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: ThemeColor.values.map((color) {
Color activeColor;
switch (color) {
case ThemeColor.purple:
activeColor = Colors.deepPurple;
case ThemeColor.blue:
activeColor = Colors.blue;
case ThemeColor.teal:
activeColor = Colors.teal;
case ThemeColor.orange:
activeColor = Colors.deepOrange;
case ThemeColor.pink:
activeColor = Colors.pink;
}
return LiquidGlassRadioButton<ThemeColor>(
value: color,
groupValue: widget.selectedColor,
activeColor: activeColor,
onChanged: (val) {
if (val != null) {
widget.onColorChanged(val);
}
},
);
}).toList(),
),
),
const SizedBox(height: 30),
// Liquid Glass Card
_buildSection('LiquidGlassCard'),
LiquidGlassCard(
onTap: () => _showSnackBar('Card tapped!'),
child: const Padding(
padding: EdgeInsets.all(20),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Icon(
Icons.auto_awesome,
color: Colors.white,
size: 32,
),
SizedBox(height: 12),
Text(
'Beautiful Glass Card',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.w600,
color: Colors.white,
),
),
SizedBox(height: 8),
Text(
'Tap me! This card features blur, translucency, and subtle reflections.',
style: TextStyle(
fontSize: 14,
color: Colors.white70,
),
),
],
),
),
),
const SizedBox(height: 30),
// Liquid Glass Buttons
_buildSection('LiquidGlassButton'),
Row(
children: [
Expanded(
child: LiquidGlassButton(
onPressed: () => _showSnackBar('Primary pressed!'),
child: const Text('Primary'),
),
),
const SizedBox(width: 12),
Expanded(
child: LiquidGlassButton(
onPressed: () => _showSnackBar('Secondary pressed!'),
tintColor: Colors.purple,
child: const Text('Tinted'),
),
),
],
),
const SizedBox(height: 12),
const LiquidGlassButton(
onPressed: null,
child: Text('Disabled Button'),
),
const SizedBox(height: 30),
// Liquid Glass TextField
_buildSection('LiquidGlassTextField'),
LiquidGlassTextField(
controller: _textController,
labelText: 'Email',
hintText: 'Enter your email',
prefixIcon: const Icon(
Icons.email_outlined,
color: Colors.white70,
),
),
const SizedBox(height: 12),
const LiquidGlassTextField(
labelText: 'Password',
hintText: 'Enter your password',
obscureText: true,
prefixIcon: Icon(Icons.lock_outline, color: Colors.white70),
),
const SizedBox(height: 30),
// Liquid Glass Container
_buildSection('LiquidGlassContainer'),
LiquidGlassContainer(
padding: const EdgeInsets.all(20),
child: Row(
children: [
const Icon(Icons.info_outline, color: Colors.white70),
const SizedBox(width: 12),
Expanded(
child: Text(
'This is a custom glass container. Use it for any content!',
style: TextStyle(
color: Colors.white.withValues(alpha: 0.9),
),
),
),
],
),
),
const SizedBox(height: 30),
// Liquid Glass Chips
_buildSection('LiquidGlassChip'),
Wrap(
spacing: 8,
runSpacing: 8,
children: [
LiquidGlassChip(
label: const Text('Flutter'),
avatar: const Icon(Icons.flutter_dash, size: 18),
onTap: () => _showSnackBar('Flutter chip tapped!'),
),
LiquidGlassChip(
label: const Text('Dart'),
avatar: const Icon(Icons.code, size: 18),
onTap: () => _showSnackBar('Dart chip tapped!'),
),
const LiquidGlassChip(
label: Text('Design'),
avatar: Icon(Icons.palette, size: 18),
selected: true,
),
],
),
const SizedBox(height: 30),
// Liquid Glass SnackBar Showcase with Transitions
_buildSection('LiquidGlassSnackBar'),
LiquidGlassContainer(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Text(
'Snackbar types with smooth animated transitions:',
style: TextStyle(
color: Colors.white.withValues(alpha: 0.8),
fontSize: 13,
),
),
const SizedBox(height: 16),
// Row 1: Info (slide up) and Success (scale)
Row(
children: [
Expanded(
child: LiquidGlassButton(
onPressed: () => showLiquidGlassSnackBar(
context: context,
message: 'This is an info message.',
type: LiquidGlassSnackBarType.info,
),
tintColor: const Color(0xFF007AFF),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.info_outline, size: 18),
SizedBox(width: 6),
Text('Info'),
],
),
),
),
const SizedBox(width: 10),
Expanded(
child: LiquidGlassButton(
onPressed: () => showLiquidGlassSnackBar(
context: context,
message: 'Operation completed successfully!',
type: LiquidGlassSnackBarType.success,
transitionType: LiquidGlassTransitionType.scale,
),
tintColor: const Color(0xFF34C759),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.check_circle_outline, size: 18),
SizedBox(width: 6),
Text('Success'),
],
),
),
),
],
),
const SizedBox(height: 10),
// Row 2: Warning (zoom) and Error (elastic)
Row(
children: [
Expanded(
child: LiquidGlassButton(
onPressed: () => showLiquidGlassSnackBar(
context: context,
message: 'Please check your settings.',
type: LiquidGlassSnackBarType.warning,
transitionType: LiquidGlassTransitionType.zoom,
),
tintColor: const Color(0xFFFF9500),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.warning_amber, size: 18),
SizedBox(width: 6),
Text('Warning'),
],
),
),
),
const SizedBox(width: 10),
Expanded(
child: LiquidGlassButton(
onPressed: () => showLiquidGlassSnackBar(
context: context,
message: 'Something went wrong!',
type: LiquidGlassSnackBarType.error,
transitionType:
LiquidGlassTransitionType.elastic,
transitionDuration:
const Duration(milliseconds: 500),
),
tintColor: const Color(0xFFFF3B30),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.error_outline, size: 18),
SizedBox(width: 6),
Text('Error'),
],
),
),
),
],
),
const SizedBox(height: 10),
// Row 3: Top position
LiquidGlassButton(
onPressed: () => showLiquidGlassSnackBar(
context: context,
message: 'Notification from the top!',
type: LiquidGlassSnackBarType.info,
position: LiquidGlassSnackBarPosition.top,
transitionType: LiquidGlassTransitionType.slideDown,
),
tintColor: Colors.purple,
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.arrow_upward, size: 18),
SizedBox(width: 6),
Text('Top Position'),
],
),
),
const SizedBox(height: 10),
// Row 4: With action and close button
LiquidGlassButton(
onPressed: () => showLiquidGlassSnackBar(
context: context,
message: 'File saved to Downloads folder.',
type: LiquidGlassSnackBarType.success,
transitionType: LiquidGlassTransitionType.scaleDown,
actionLabel: 'Open',
onActionPressed: () =>
_showSnackBar('Opening file...'),
showCloseIcon: true,
),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.save_alt, size: 18),
SizedBox(width: 6),
Text('With Action & Close'),
],
),
),
],
),
),
const SizedBox(height: 30),
// Liquid Glass Dialog Showcase
_buildSection('LiquidGlassDialog'),
LiquidGlassContainer(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Text(
'Beautiful animated dialog transitions:',
style: TextStyle(
color: Colors.white.withValues(alpha: 0.8),
fontSize: 13,
),
),
const SizedBox(height: 16),
// Row 1: Scale Down (iOS) and Scale
Row(
children: [
Expanded(
child: LiquidGlassButton(
onPressed: () => showLiquidGlassDialog<void>(
context: context,
builder: (context) => LiquidGlassAlertDialog(
icon: const Icon(
Icons.star_rounded,
color: Color(0xFFFFD60A),
),
title: const Text('iOS Style'),
content: const Text(
'This dialog uses the signature iOS scale-down animation.',
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text(
'Close',
style: TextStyle(
color: Color(0xFF007AFF),
),
),
),
],
),
),
tintColor: const Color(0xFF007AFF),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.phone_iphone, size: 18),
SizedBox(width: 6),
Text('iOS Style'),
],
),
),
),
const SizedBox(width: 10),
Expanded(
child: LiquidGlassButton(
onPressed: () => showLiquidGlassDialog<void>(
context: context,
transitionType:
LiquidGlassTransitionType.elastic,
transitionDuration:
const Duration(milliseconds: 600),
builder: (context) => LiquidGlassAlertDialog(
icon: const Icon(
Icons.celebration,
color: Color(0xFFFF9500),
),
title: const Text('Bouncy!'),
content: const Text(
'This dialog has a playful elastic bounce animation.',
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text(
'Awesome!',
style: TextStyle(
color: Color(0xFFFF9500),
),
),
),
],
),
),
tintColor: const Color(0xFFFF9500),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.animation, size: 18),
SizedBox(width: 6),
Text('Elastic'),
],
),
),
),
],
),
const SizedBox(height: 10),
// Row 2: Slide Up and Zoom
Row(
children: [
Expanded(
child: LiquidGlassButton(
onPressed: () => showLiquidGlassDialog<void>(
context: context,
transitionType:
LiquidGlassTransitionType.slideUp,
builder: (context) => LiquidGlassAlertDialog(
icon: const Icon(
Icons.upload_rounded,
color: Color(0xFF34C759),
),
title: const Text('Slide Up'),
content: const Text(
'Perfect for bottom sheet-style dialogs.',
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text(
'Got it!',
style: TextStyle(
color: Color(0xFF34C759),
),
),
),
],
),
),
tintColor: const Color(0xFF34C759),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.arrow_upward, size: 18),
SizedBox(width: 6),
Text('Slide Up'),
],
),
),
),
const SizedBox(width: 10),
Expanded(
child: LiquidGlassButton(
onPressed: () => showLiquidGlassDialog<void>(
context: context,
transitionType: LiquidGlassTransitionType.zoom,
builder: (context) => LiquidGlassAlertDialog(
icon: const Icon(
Icons.zoom_in,
color: Color(0xFFAF52DE),
),
title: const Text('Zoom'),
content: const Text(
'A dramatic zoom entrance with subtle bounce.',
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text(
'Nice!',
style: TextStyle(
color: Color(0xFFAF52DE),
),
),
),
],
),
),
tintColor: const Color(0xFFAF52DE),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.zoom_in, size: 18),
SizedBox(width: 6),
Text('Zoom'),
],
),
),
),
],
),
const SizedBox(height: 10),
// Confirmation dialog
LiquidGlassButton(
onPressed: () async {
final confirmed = await showLiquidGlassConfirmDialog(
context: context,
title: 'Delete Item',
message:
'Are you sure you want to delete this item? This action cannot be undone.',
confirmText: 'Delete',
isDestructive: true,
);
if ((confirmed ?? false) && context.mounted) {
await showLiquidGlassSnackBar(
context: context,
message: 'Item deleted successfully.',
type: LiquidGlassSnackBarType.success,
);
}
},
tintColor: const Color(0xFFFF3B30),
child: const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.delete_outline, size: 18),
SizedBox(width: 6),
Text('Confirmation Dialog'),
],
),
),
],
),
),
const SizedBox(height: 100),
],
),
),
),
),
floatingActionButton: LiquidGlassFAB(
onPressed: () => _showSnackBar('FAB pressed!'),
child: const Icon(Icons.add),
),
bottomNavigationBar: LiquidGlassBottomNavigationBar(
currentIndex: _selectedIndex,
onTap: (index) => setState(() => _selectedIndex = index),
items: const [
BottomNavigationBarItem(
icon: Icon(Icons.home_outlined),
activeIcon: Icon(Icons.home),
label: 'Home',
),
BottomNavigationBarItem(
icon: Icon(Icons.search_outlined),
activeIcon: Icon(Icons.search),
label: 'Search',
),
BottomNavigationBarItem(
icon: Icon(Icons.favorite_outline),
activeIcon: Icon(Icons.favorite),
label: 'Favorites',
),
BottomNavigationBarItem(
icon: Icon(Icons.person_outline),
activeIcon: Icon(Icons.person),
label: 'Profile',
),
],
),
);
}
}Metadata
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Metadata
Apple Liquid Glass design for Flutter Material widgets. Features translucent surfaces, dynamic blur effects, subtle reflections, and depth-based layering.
Repository (GitHub)
View/report issues
Topics
#ui #glassmorphism #design #material #apple
License
MIT (license)
