flutter_d4rt 0.0.1 
flutter_d4rt: ^0.0.1 copied to clipboard
A WIP Flutter package that provides dynamic Dart code execution and widget creation at runtime. Built on d4rt, it enables dynamic UI generation, and runtime code interpretation with comprehensive Mate [...]
example/lib/main.dart
import 'package:flutter/material.dart';
import 'package:flutter_d4rt/flutter_d4rt.dart';
void main() {
runApp(const MyAppTest());
}
class MyAppTest extends StatelessWidget {
const MyAppTest({super.key});
@override
Widget build(BuildContext context) {
return InterpretedWidget(code: code, entryPoint: 'MyApp');
}
}
final String code = '''
import 'package:flutter/material.dart';
// Theme management using ChangeNotifier
class ThemeController extends ChangeNotifier {
ThemeMode _themeMode = ThemeMode.system;
ThemeMode get themeMode => _themeMode;
void setThemeMode(ThemeMode mode) {
_themeMode = mode;
notifyListeners();
}
void toggleTheme() {
switch (_themeMode) {
case ThemeMode.system:
_themeMode = ThemeMode.light;
break;
case ThemeMode.light:
_themeMode = ThemeMode.dark;
break;
case ThemeMode.dark:
_themeMode = ThemeMode.system;
break;
}
notifyListeners();
}
}
class MyApp extends StatelessWidget {
final ThemeController _themeController = ThemeController();
MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return ListenableBuilder(
listenable: _themeController,
builder: (context, child) {
return MaterialApp(
title: 'Flutter Run Example - Advanced Theming',
debugShowCheckedModeBanner: false,
// Light Theme Configuration
theme: ThemeData(
useMaterial3: true,
colorScheme: ColorScheme.fromSeed(
seedColor: Colors.deepPurple,
brightness: Brightness.light,
),
appBarTheme: AppBarTheme(
centerTitle: true,
elevation: 2.0,
shadowColor: Colors.black26,
titleTextStyle: TextStyle(
fontSize: 20,
fontWeight: FontWeight.w600,
color: Colors.white,
),
),
elevatedButtonTheme: ElevatedButtonThemeData(
style: ElevatedButton.styleFrom(
elevation: 4.0,
padding: EdgeInsets.symmetric(horizontal: 24, vertical: 12),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12.0),
),
),
),
cardTheme: CardThemeData(
elevation: 6.0,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(16.0),
),
margin: EdgeInsets.all(8.0),
),
bottomNavigationBarTheme: BottomNavigationBarThemeData(
elevation: 8.0,
type: BottomNavigationBarType.fixed,
selectedItemColor: Colors.deepPurple,
unselectedItemColor: Colors.grey,
backgroundColor: Colors.white,
),
floatingActionButtonTheme: FloatingActionButtonThemeData(
elevation: 6.0,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(16.0),
),
),
textTheme: TextTheme(
headlineLarge: TextStyle(
fontSize: 32,
fontWeight: FontWeight.bold,
color: Colors.deepPurple,
),
headlineMedium: TextStyle(
fontSize: 24,
fontWeight: FontWeight.w600,
),
bodyLarge: TextStyle(
fontSize: 16,
height: 1.5,
),
),
),
// Dark Theme Configuration
darkTheme: ThemeData(
useMaterial3: true,
colorScheme: ColorScheme.fromSeed(
seedColor: Colors.deepPurple,
brightness: Brightness.dark,
),
appBarTheme: AppBarTheme(
centerTitle: true,
elevation: 2.0,
backgroundColor: Colors.grey[900],
titleTextStyle: TextStyle(
fontSize: 20,
fontWeight: FontWeight.w600,
color: Colors.white,
),
),
elevatedButtonTheme: ElevatedButtonThemeData(
style: ElevatedButton.styleFrom(
elevation: 4.0,
padding: EdgeInsets.symmetric(horizontal: 24, vertical: 12),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12.0),
),
),
),
cardTheme: CardThemeData(
elevation: 6.0,
color: Colors.grey[850],
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(16.0),
),
margin: EdgeInsets.all(8.0),
),
bottomNavigationBarTheme: BottomNavigationBarThemeData(
elevation: 8.0,
type: BottomNavigationBarType.fixed,
selectedItemColor: Colors.deepPurpleAccent,
unselectedItemColor: Colors.grey[400],
backgroundColor: Colors.grey[900],
),
floatingActionButtonTheme: FloatingActionButtonThemeData(
elevation: 6.0,
backgroundColor: Colors.deepPurpleAccent,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(16.0),
),
),
textTheme: TextTheme(
headlineLarge: TextStyle(
fontSize: 32,
fontWeight: FontWeight.bold,
color: Colors.deepPurpleAccent,
),
headlineMedium: TextStyle(
fontSize: 24,
fontWeight: FontWeight.w600,
color: Colors.white,
),
bodyLarge: TextStyle(
fontSize: 16,
height: 1.5,
color: Colors.white70,
),
),
),
// Theme mode (controlled by ThemeController)
themeMode: _themeController.themeMode,
home: ComplexApp(themeController: _themeController),
);
},
);
}
}
class ComplexApp extends StatefulWidget {
final ThemeController themeController;
const ComplexApp({super.key, required this.themeController});
@override
createState() => ComplexAppState();
}
class ComplexAppState extends State<ComplexApp> with SingleTickerProviderStateMixin {
int currentIndex = 0;
int counter = 0;
List<String> items = ['Item 1', 'Item 2', 'Item 3'];
late AnimationController _animationController;
late Animation<double> _fadeAnimation;
late Animation<double> _scaleAnimation;
@override
void initState() {
super.initState();
_animationController = AnimationController(
duration: Duration(milliseconds: 800),
vsync: this,
);
_fadeAnimation = Tween<double>(
begin: 0.0,
end: 1.0,
).animate(CurvedAnimation(
parent: _animationController,
curve: Curves.easeInOut,
));
_scaleAnimation = Tween<double>(
begin: 0.8,
end: 1.0,
).animate(CurvedAnimation(
parent: _animationController,
curve: Curves.elasticOut,
));
_animationController.forward();
}
@override
void dispose() {
super.dispose();
_animationController.dispose();
}
increment() {
setState(() {
counter++;
});
// Restart animation on increment
_animationController.reset();
_animationController.forward();
}
reset() {
setState(() {
counter = 0;
});
// Restart animation on reset
_animationController.reset();
_animationController.forward();
}
addItem() {
setState(() {
items.add('Item \${items.length + 1}');
});
}
onTabTapped(int index) {
setState(() {
currentIndex = index;
});
// Animate tab change
_animationController.reset();
_animationController.forward();
}
navigateToDetail(String item) {
Navigator.of(context).push(
MaterialPageRoute(builder: (context) => DetailScreen(item: item))
);
}
@override
build(context) {
List<Widget> screens = [
HomeScreen(
counter: counter,
increment: increment,
reset: reset,
fadeAnimation: _fadeAnimation,
scaleAnimation: _scaleAnimation,
),
ListScreen(
items: items,
onItemTap: navigateToDetail,
fadeAnimation: _fadeAnimation,
),
ProfileScreen(fadeAnimation: _fadeAnimation),
];
return Scaffold(
appBar: AppBar(
title: Text('Complex App - Advanced Theming'),
actions: [
IconButton(
icon: Icon(Icons.search),
onPressed: () {},
tooltip: 'Search',
),
ListenableBuilder(
listenable: widget.themeController,
builder: (context, child) {
return IconButton(
icon: Icon(_getThemeIcon()),
onPressed: () {
try {
widget.themeController.toggleTheme();
} catch (e) {
print(e);
}
},
tooltip: 'Toggle Theme: \${_getThemeLabel()}',
);
},
),
PopupMenuButton<String>(
icon: Icon(Icons.more_vert),
tooltip: 'More Options',
onSelected: (String value) {
// Handle menu selection
switch (value) {
case 'settings':
// Navigate to settings
break;
case 'about':
// Show about dialog
showDialog(
context: context,
builder: (context) => AlertDialog(
title: Text('About'),
content: Text('Flutter Run Example App v1.0'),
actions: [
TextButton(
onPressed: () => Navigator.of(context).pop(),
child: Text('OK'),
),
],
),
);
break;
case 'help':
// Show help
break;
case 'share':
// Share app
break;
case 'theme_light':
widget.themeController.setThemeMode(ThemeMode.light);
break;
case 'theme_dark':
widget.themeController.setThemeMode(ThemeMode.dark);
break;
case 'theme_system':
widget.themeController.setThemeMode(ThemeMode.system);
break;
}
},
itemBuilder: (BuildContext context) => <PopupMenuEntry<String>>[
PopupMenuItem<String>(
value: 'settings',
child: ListTile(
leading: Icon(Icons.settings),
title: Text('Settings'),
contentPadding: EdgeInsets.zero,
),
),
PopupMenuItem<String>(
value: 'about',
child: ListTile(
leading: Icon(Icons.info),
title: Text('About'),
contentPadding: EdgeInsets.zero,
),
),
PopupMenuDivider(),
PopupMenuItem<String>(
value: 'theme_light',
child: ListTile(
leading: Icon(Icons.light_mode),
title: Text('Light Theme'),
contentPadding: EdgeInsets.zero,
),
),
PopupMenuItem<String>(
value: 'theme_dark',
child: ListTile(
leading: Icon(Icons.dark_mode),
title: Text('Dark Theme'),
contentPadding: EdgeInsets.zero,
),
),
PopupMenuItem<String>(
value: 'theme_system',
child: ListTile(
leading: Icon(Icons.auto_mode),
title: Text('System Theme'),
contentPadding: EdgeInsets.zero,
),
),
PopupMenuDivider(),
PopupMenuItem<String>(
value: 'help',
child: ListTile(
leading: Icon(Icons.help),
title: Text('Help'),
contentPadding: EdgeInsets.zero,
),
),
PopupMenuItem<String>(
value: 'share',
child: ListTile(
leading: Icon(Icons.share),
title: Text('Share'),
contentPadding: EdgeInsets.zero,
),
),
],
),
],
),
body: AnimatedBuilder(
animation: _fadeAnimation,
builder: (context, child) {
return FadeTransition(
opacity: _fadeAnimation,
child: screens[currentIndex],
);
},
),
bottomNavigationBar: BottomNavigationBar(
currentIndex: currentIndex,
onTap: onTabTapped,
items: [
BottomNavigationBarItem(
icon: Icon(Icons.home),
label: 'Home',
),
BottomNavigationBarItem(
icon: Icon(Icons.list),
label: 'List',
),
BottomNavigationBarItem(
icon: Icon(Icons.person),
label: 'Profile',
),
],
),
floatingActionButton: FloatingActionButton(
onPressed: addItem,
child: Icon(Icons.add),
tooltip: 'Add Item',
),
);
}
IconData _getThemeIcon() {
switch (widget.themeController.themeMode) {
case ThemeMode.light:
return Icons.light_mode;
case ThemeMode.dark:
return Icons.dark_mode;
case ThemeMode.system:
return Icons.auto_mode;
}
}
String _getThemeLabel() {
switch (widget.themeController.themeMode) {
case ThemeMode.light:
return 'Light';
case ThemeMode.dark:
return 'Dark';
case ThemeMode.system:
return 'System';
}
}
}
class HomeScreen extends StatelessWidget {
final int counter;
final Function increment;
final Function reset;
final Animation<double> fadeAnimation;
final Animation<double> scaleAnimation;
HomeScreen({
required this.counter,
required this.increment,
required this.fadeAnimation,
required this.scaleAnimation,
required this.reset,
});
@override
build(context) {
final theme = Theme.of(context);
final colorScheme = theme.colorScheme;
return SingleChildScrollView(
child: Container(
padding: EdgeInsets.all(20.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
// Welcome Card with animation
AnimatedBuilder(
animation: scaleAnimation,
builder: (context, child) {
return Transform.scale(
scale: scaleAnimation.value,
child: Card(
child: Container(
padding: EdgeInsets.all(24.0),
width: double.infinity,
child: Column(
children: [
Icon(
Icons.trending_up,
size: 64.0,
color: colorScheme.primary,
),
SizedBox(height: 16.0),
Text(
'Counter Dashboard',
style: theme.textTheme.headlineMedium,
),
SizedBox(height: 8.0),
Text(
'Track your progress with our advanced counter',
style: theme.textTheme.bodyLarge?.copyWith(
color: colorScheme.onSurfaceVariant,
),
textAlign: TextAlign.center,
),
SizedBox(height: 16.0),
AnimatedBuilder(
animation: fadeAnimation,
builder: (context, child) {
return AnimatedDefaultTextStyle(
duration: Duration(milliseconds: 300),
style: theme.textTheme.headlineLarge?.copyWith(
fontSize: 56.0,
color: Color.lerp(
colorScheme.primary,
colorScheme.secondary,
fadeAnimation.value,
),
) ?? TextStyle(),
child: Text('\$counter'),
);
},
),
],
),
),
),
);
},
),
SizedBox(height: 20.0),
// Action Buttons
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
ElevatedButton.icon(
onPressed: increment,
icon: Icon(Icons.add),
label: Text('Increment'),
),
OutlinedButton.icon(
onPressed: reset,
icon: Icon(Icons.refresh),
label: Text('Reset'),
),
],
),
SizedBox(height: 20.0),
// Stats Card with fade animation
FadeTransition(
opacity: fadeAnimation,
child: Card(
child: Container(
padding: EdgeInsets.all(20.0),
width: double.infinity,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(
Icons.analytics,
color: colorScheme.secondary,
),
SizedBox(width: 8.0),
Text(
'Statistics',
style: theme.textTheme.headlineSmall,
),
],
),
SizedBox(height: 16.0),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'Current Value',
style: theme.textTheme.bodyMedium?.copyWith(
color: colorScheme.onSurfaceVariant,
),
),
Text(
'\$counter',
style: theme.textTheme.titleLarge?.copyWith(
color: colorScheme.primary,
fontWeight: FontWeight.bold,
),
),
],
),
Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Text(
'Status',
style: theme.textTheme.bodyMedium?.copyWith(
color: colorScheme.onSurfaceVariant,
),
),
Container(
padding: EdgeInsets.symmetric(
horizontal: 12.0,
vertical: 4.0,
),
decoration: BoxDecoration(
color: colorScheme.primaryContainer,
borderRadius: BorderRadius.circular(16.0),
),
child: Text(
counter > 10 ? 'High' : counter > 5 ? 'Medium' : 'Low',
style: theme.textTheme.bodySmall?.copyWith(
color: colorScheme.onPrimaryContainer,
fontWeight: FontWeight.w600,
),
),
),
],
),
],
),
],
),
),
),
),
SizedBox(height: 20.0),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
_buildStatCard('Tasks', '12', Icons.task_alt, Colors.blue),
_buildStatCard('Messages', '5', Icons.message, Colors.orange),
],
),
],
),
),
);
}
Widget _buildStatCard(String title, String value, IconData icon, Color color) {
return Card(
child: Container(
padding: EdgeInsets.all(16.0),
width: 120.0,
child: Column(
children: [
Icon(icon, color: color, size: 32.0),
SizedBox(height: 8.0),
Text(value, style: TextStyle(fontSize: 24.0, fontWeight: FontWeight.bold)),
Text(title, style: TextStyle(fontSize: 12.0, color: Colors.grey)),
],
),
),
);
}
}
class ListScreen extends StatelessWidget {
final List<String> items;
final Function(String) onItemTap;
final Animation<double> fadeAnimation;
ListScreen({
required this.items,
required this.onItemTap,
required this.fadeAnimation,
});
@override
build(context) {
return FadeTransition(
opacity: fadeAnimation,
child: ListView.builder(
padding: EdgeInsets.all(16.0),
itemCount: items.length,
itemBuilder: (context, index) {
return AnimatedContainer(
duration: Duration(milliseconds: 300 + (index * 100)),
curve: Curves.easeOutBack,
margin: EdgeInsets.only(bottom: 8.0),
child: Card(
child: ListTile(
leading: CircleAvatar(
backgroundColor: Colors.deepPurple,
child: Text('\${index + 1}'),
),
title: Text(items[index]),
subtitle: Text('Description for \${items[index]}'),
trailing: Icon(Icons.arrow_forward_ios),
onTap: () => onItemTap(items[index]),
),
),
);
},
),
);
}
}
class ProfileScreen extends StatelessWidget {
final Animation<double> fadeAnimation;
ProfileScreen({required this.fadeAnimation});
@override
build(context) {
return FadeTransition(
opacity: fadeAnimation,
child: SingleChildScrollView(
padding: EdgeInsets.all(16.0),
child: Column(
children: [
Container(
width: double.infinity,
child: Card(
child: Padding(
padding: EdgeInsets.all(24.0),
child: Column(
children: [
CircleAvatar(
radius: 50.0,
backgroundColor: Colors.deepPurple,
child: Icon(Icons.person, size: 50.0, color: Colors.white),
),
SizedBox(height: 16.0),
Text('John Doe', style: TextStyle(fontSize: 24.0, fontWeight: FontWeight.bold)),
Text('john.doe@example.com', style: TextStyle(color: Colors.grey)),
],
),
),
),
),
SizedBox(height: 16.0),
_buildProfileOption(Icons.settings, 'Settings'),
_buildProfileOption(Icons.notifications, 'Notifications'),
_buildProfileOption(Icons.help, 'Help & Support'),
_buildProfileOption(Icons.logout, 'Logout'),
],
),
),
);
}
Widget _buildProfileOption(IconData icon, String title) {
return Card(
margin: EdgeInsets.only(bottom: 8.0),
child: ListTile(
leading: Icon(icon, color: Colors.deepPurple),
title: Text(title),
trailing: Icon(Icons.arrow_forward_ios),
onTap: () {},
),
);
}
}
class DetailScreen extends StatelessWidget {
final String item;
DetailScreen({required this.item});
@override
build(context) {
return Scaffold(
appBar: AppBar(
title: Text(item),
backgroundColor: Colors.deepPurple,
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.info, size: 64.0, color: Colors.deepPurple),
SizedBox(height: 16.0),
Text('Details for \$item', style: TextStyle(fontSize: 24.0)),
SizedBox(height: 32.0),
ElevatedButton(
onPressed: () => Navigator.of(context).pop(),
child: Text('Go Back'),
),
],
),
),
);
}
}
''';Metadata
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Publisher
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Weekly Downloads
Metadata
A WIP Flutter package that provides dynamic Dart code execution and widget creation at runtime. Built on d4rt, it enables dynamic UI generation, and runtime code interpretation with comprehensive Material Design support.
Repository (GitHub)
View/report issues
License
unknown (license)
