nitro_printing 0.0.2 
nitro_printing: ^0.0.2 copied to clipboard
Published 3 days ago • 
shreeman.dev
shreeman.devA high-performance Flutter printing plugin built on Nitro for Flutter. Supports text, image, PDF, raw/ESC-POS/ZPL printing, print-job management, mDNS printer discovery, IPP status queries, and a buil [...]
import 'package:flutter/material.dart';
import 'package:nitro/nitro.dart';
import 'core/repositories/printer_repository.dart';
import 'features/status/status_feature.dart';
import 'features/print/print_feature.dart';
import 'features/raw/raw_feature.dart';
import 'features/jobs/jobs_feature.dart';
import 'features/printers/printers_feature.dart';
void main() {
WidgetsFlutterBinding.ensureInitialized();
NitroConfig.instance
..logLevel = NitroLogLevel.verbose
..debugMode = true;
runApp(App(printerRepository: NitroPrinterRepository()));
}
class App extends StatelessWidget {
final PrinterRepository printerRepository;
const App({super.key, required this.printerRepository});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'NitroPrinting Demo',
debugShowCheckedModeBanner: false,
theme: ThemeData(
useMaterial3: true,
brightness: Brightness.dark,
colorScheme: ColorScheme.fromSeed(
seedColor: const Color(0xFF6366F1), // Indigo
brightness: Brightness.dark,
primary: const Color(0xFF6366F1),
secondary: const Color(0xFF8B5CF6), // Violet
surface: const Color(0xFF0F172A), // Slate 900
onSurface: const Color(0xFFF1F5F9),
surfaceContainerHighest: const Color(0xFF1E293B), // Slate 800
),
scaffoldBackgroundColor: const Color(0xFF090D1A),
cardTheme: CardThemeData(
color: const Color(0xFF131B2E), // Slate 850
elevation: 0,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(16),
side: const BorderSide(color: Color(0xFF1E293B), width: 1),
),
margin: EdgeInsets.zero,
),
inputDecorationTheme: InputDecorationTheme(
filled: true,
fillColor: const Color(0xFF1E293B).withValues(alpha: 0.4),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: Color(0xFF334155), width: 1),
),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: Color(0xFF1E293B), width: 1),
),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: Color(0xFF6366F1), width: 2),
),
labelStyle: const TextStyle(color: Color(0xFF94A3B8), fontSize: 14),
floatingLabelStyle: const TextStyle(color: Color(0xFF6366F1)),
contentPadding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 16,
),
),
filledButtonTheme: FilledButtonThemeData(
style: FilledButton.styleFrom(
backgroundColor: const Color(0xFF6366F1),
foregroundColor: Colors.white,
padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
elevation: 0,
),
),
outlinedButtonTheme: OutlinedButtonThemeData(
style: OutlinedButton.styleFrom(
foregroundColor: const Color(0xFF94A3B8),
side: const BorderSide(color: Color(0xFF334155), width: 1),
padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
),
),
dividerTheme: const DividerThemeData(
color: Color(0xFF1E293B),
thickness: 1,
space: 24,
),
textTheme: const TextTheme(
headlineMedium: TextStyle(
fontSize: 24,
fontWeight: FontWeight.bold,
letterSpacing: -0.5,
color: Colors.white,
),
titleLarge: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
letterSpacing: -0.2,
color: Colors.white,
),
titleMedium: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w600,
color: Color(0xFFE2E8F0),
),
bodyLarge: TextStyle(fontSize: 15, color: Color(0xFFCBD5E1)),
bodyMedium: TextStyle(fontSize: 14, color: Color(0xFF94A3B8)),
labelLarge: TextStyle(
fontSize: 13,
fontWeight: FontWeight.bold,
letterSpacing: 0.5,
color: Color(0xFF6366F1),
),
),
),
home: HomePage(printerRepository: printerRepository),
);
}
}
class HomePage extends StatefulWidget {
final PrinterRepository printerRepository;
const HomePage({super.key, required this.printerRepository});
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
int _tab = 0;
final List<({IconData icon, IconData selectedIcon, String label})>
_destinations = const [
(icon: Icons.info_outline, selectedIcon: Icons.info, label: 'Status'),
(
icon: Icons.devices_outlined,
selectedIcon: Icons.devices_rounded,
label: 'Printers',
),
(icon: Icons.print_outlined, selectedIcon: Icons.print, label: 'Print'),
(
icon: Icons.receipt_long_outlined,
selectedIcon: Icons.receipt_long,
label: 'Raw',
),
(
icon: Icons.list_alt_outlined,
selectedIcon: Icons.list_alt,
label: 'Jobs',
),
];
@override
Widget build(BuildContext context) {
final size = MediaQuery.of(context).size;
final isDesktop = size.width >= 1100;
final isTablet = size.width >= 650 && size.width < 1100;
final tabs = [
StatusTab(repo: widget.printerRepository),
PrintersTab(repo: widget.printerRepository),
PrintTab(repo: widget.printerRepository),
RawTab(repo: widget.printerRepository),
PrintJobsTab(repo: widget.printerRepository),
];
return Scaffold(
body: Row(
children: [
if (isDesktop) _buildSidebar(context),
if (isTablet) _buildNavigationRail(context),
Expanded(
child: IndexedStack(index: _tab, children: tabs),
),
],
),
bottomNavigationBar: (!isDesktop && !isTablet)
? Container(
decoration: const BoxDecoration(
border: Border(
top: BorderSide(color: Color(0xFF1E293B), width: 1),
),
),
child: NavigationBar(
backgroundColor: const Color(0xFF0B0F19),
elevation: 0,
selectedIndex: _tab,
onDestinationSelected: (i) => setState(() => _tab = i),
indicatorColor: const Color(0xFF6366F1).withValues(alpha: 0.15),
destinations: _destinations
.map(
(d) => NavigationDestination(
icon: Icon(d.icon, color: const Color(0xFF94A3B8)),
selectedIcon: Icon(
d.selectedIcon,
color: const Color(0xFF6366F1),
),
label: d.label,
),
)
.toList(),
),
)
: null,
);
}
// Elegant sidebar for desktop screens
Widget _buildSidebar(BuildContext context) {
return Container(
width: 260,
decoration: const BoxDecoration(
color: Color(0xFF0B0F19),
border: Border(right: BorderSide(color: Color(0xFF1E293B), width: 1)),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Elegant Header with glowing logo
Padding(
padding: const EdgeInsets.all(24),
child: Row(
children: [
Container(
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
gradient: const LinearGradient(
colors: [Color(0xFF6366F1), Color(0xFF8B5CF6)],
begin: Alignment.topLeft,
end: Alignment.bottomRight,
),
borderRadius: BorderRadius.circular(12),
boxShadow: [
BoxShadow(
color: const Color(0xFF6366F1).withValues(alpha: 0.3),
blurRadius: 12,
offset: const Offset(0, 4),
),
],
),
child: const Icon(
Icons.print_rounded,
color: Colors.white,
size: 22,
),
),
const SizedBox(width: 14),
const Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'NitroPrint',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: Colors.white,
letterSpacing: -0.5,
),
),
Text(
'Plugin Example',
style: TextStyle(
fontSize: 11,
color: Color(0xFF64748B),
fontWeight: FontWeight.w500,
),
),
],
),
],
),
),
const Divider(height: 1, indent: 16, endIndent: 16),
const SizedBox(height: 20),
// Menu Items
Expanded(
child: ListView.builder(
itemCount: _destinations.length,
padding: const EdgeInsets.symmetric(horizontal: 12),
itemBuilder: (context, index) {
final d = _destinations[index];
final isSelected = _tab == index;
return Padding(
padding: const EdgeInsets.symmetric(vertical: 4),
child: Material(
color: Colors.transparent,
child: InkWell(
onTap: () => setState(() => _tab = index),
borderRadius: BorderRadius.circular(12),
child: AnimatedContainer(
duration: const Duration(milliseconds: 200),
padding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 14,
),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(12),
gradient: isSelected
? LinearGradient(
colors: [
const Color(
0xFF6366F1,
).withValues(alpha: 0.15),
const Color(
0xFF8B5CF6,
).withValues(alpha: 0.05),
],
begin: Alignment.topLeft,
end: Alignment.bottomRight,
)
: null,
border: isSelected
? Border.all(
color: const Color(
0xFF6366F1,
).withValues(alpha: 0.25),
width: 1,
)
: Border.all(color: Colors.transparent, width: 1),
),
child: Row(
children: [
Icon(
isSelected ? d.selectedIcon : d.icon,
color: isSelected
? const Color(0xFF6366F1)
: const Color(0xFF64748B),
size: 20,
),
const SizedBox(width: 16),
Text(
d.label,
style: TextStyle(
fontSize: 14,
fontWeight: isSelected
? FontWeight.bold
: FontWeight.w500,
color: isSelected
? Colors.white
: const Color(0xFF94A3B8),
),
),
if (isSelected) ...[
const Spacer(),
Container(
width: 6,
height: 6,
decoration: const BoxDecoration(
color: Color(0xFF6366F1),
shape: BoxShape.circle,
),
),
],
],
),
),
),
),
);
},
),
),
// Elegant Sidebar Footer
const Divider(height: 1),
Padding(
padding: const EdgeInsets.all(20),
child: Row(
children: [
Container(
width: 8,
height: 8,
decoration: const BoxDecoration(
color: Colors.green,
shape: BoxShape.circle,
boxShadow: [
BoxShadow(
color: Colors.green,
blurRadius: 6,
spreadRadius: 1,
),
],
),
),
const SizedBox(width: 10),
const Text(
'Plugin Ready',
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.w600,
color: Color(0xFF64748B),
),
),
],
),
),
],
),
);
}
// Elegant Navigation Rail for Tablet screens
Widget _buildNavigationRail(BuildContext context) {
return Container(
decoration: const BoxDecoration(
color: Color(0xFF0B0F19),
border: Border(right: BorderSide(color: Color(0xFF1E293B), width: 1)),
),
child: NavigationRail(
backgroundColor: Colors.transparent,
selectedIndex: _tab,
onDestinationSelected: (i) => setState(() => _tab = i),
labelType: NavigationRailLabelType.none,
indicatorColor: const Color(0xFF6366F1).withValues(alpha: 0.15),
leading: Padding(
padding: const EdgeInsets.symmetric(vertical: 24),
child: Container(
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
gradient: const LinearGradient(
colors: [Color(0xFF6366F1), Color(0xFF8B5CF6)],
),
borderRadius: BorderRadius.circular(10),
),
child: const Icon(
Icons.print_rounded,
color: Colors.white,
size: 20,
),
),
),
destinations: _destinations
.map(
(d) => NavigationRailDestination(
icon: Icon(d.icon, color: const Color(0xFF94A3B8)),
selectedIcon: Icon(
d.selectedIcon,
color: const Color(0xFF6366F1),
),
label: Text(d.label),
),
)
.toList(),
),
);
}
}Metadata
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Documentation
Publisher
Weekly Downloads
Metadata
A high-performance Flutter printing plugin built on Nitro for Flutter. Supports text, image, PDF, raw/ESC-POS/ZPL printing, print-job management, mDNS printer discovery, IPP status queries, and a built-in print-settings UI — all with zero method-channel overhead.
Repository (GitHub)
View/report issues
Topics
#printing #nitro #ffi #pdf #escpos
Funding
Consider supporting this project:
buymeacoffee.com
License
MIT (license)
Dependencies
flutter, nitro, plugin_platform_interface
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