rishvi_zebra_scanner 1.0.0 
rishvi_zebra_scanner: ^1.0.0 copied to clipboard
A Flutter plugin for Zebra Technologies barcode scanner devices (TC-series, MC-series, EC-series). Uses the DataWedge API to deliver scan results via a reactive stream. Developed by Rishvi for use wit [...]
import 'package:flutter/material.dart';
import 'package:rishvi_zebra_scanner/zebra_scanner_plugin.dart';
void main() {
runApp(const ZebraScannerExampleApp());
}
class ZebraScannerExampleApp extends StatelessWidget {
const ZebraScannerExampleApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Zebra Scanner Example',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
useMaterial3: true,
),
home: const HomePage(),
);
}
}
class HomePage extends StatelessWidget {
const HomePage({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Zebra Scanner Examples'),
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
_buildExampleCard(
context,
title: 'Basic Scanner',
description: 'Simple barcode scanning example',
icon: Icons.qr_code_scanner,
onTap: () => Navigator.push(
context,
MaterialPageRoute(builder: (_) => const BasicScannerExample()),
),
),
const SizedBox(height: 16),
_buildExampleCard(
context,
title: 'Inventory Scanner',
description: 'Scan and manage inventory items',
icon: Icons.inventory,
onTap: () => Navigator.push(
context,
MaterialPageRoute(
builder: (_) => const InventoryScannerExample(),
),
),
),
const SizedBox(height: 16),
_buildExampleCard(
context,
title: 'Batch Scanner',
description: 'Scan multiple items in batch mode',
icon: Icons.list_alt,
onTap: () => Navigator.push(
context,
MaterialPageRoute(builder: (_) => const BatchScannerExample()),
),
),
const SizedBox(height: 16),
_buildExampleCard(
context,
title: 'Product Lookup',
description: 'Scan and lookup product information',
icon: Icons.search,
onTap: () => Navigator.push(
context,
MaterialPageRoute(builder: (_) => const ProductLookupExample()),
),
),
],
),
);
}
Widget _buildExampleCard(
BuildContext context, {
required String title,
required String description,
required IconData icon,
required VoidCallback onTap,
}) {
return Card(
elevation: 2,
child: ListTile(
leading: Icon(icon, size: 40, color: Theme.of(context).primaryColor),
title: Text(
title,
style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
),
subtitle: Text(description),
trailing: const Icon(Icons.arrow_forward_ios),
onTap: onTap,
),
);
}
}
// Example 1: Basic Scanner
class BasicScannerExample extends StatefulWidget {
const BasicScannerExample({super.key});
@override
State<BasicScannerExample> createState() => _BasicScannerExampleState();
}
class _BasicScannerExampleState extends State<BasicScannerExample> {
String _barcode = 'No scan yet';
ScannerStatus _status = ScannerStatus.uninitialized;
@override
void initState() {
super.initState();
_initScanner();
}
Future<void> _initScanner() async {
await ZebraScanner.initialize();
ZebraScanner.scanResultStream.listen((result) {
setState(() => _barcode = result.data);
});
ZebraScanner.statusStream.listen((status) {
setState(() => _status = status);
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Basic Scanner')),
body: Center(
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.qr_code_scanner,
size: 100,
color: _status == ScannerStatus.scanning
? Colors.blue
: Colors.grey,
),
const SizedBox(height: 32),
Text(
_barcode,
style: const TextStyle(
fontSize: 24,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 16),
Text(
'Status: ${_status.name}',
style: TextStyle(fontSize: 16, color: Colors.grey[600]),
),
const SizedBox(height: 48),
ElevatedButton.icon(
onPressed: _status == ScannerStatus.scanning
? null
: () => ZebraScanner.startScan(),
icon: const Icon(Icons.play_arrow),
label: const Text('Start Scan'),
style: ElevatedButton.styleFrom(
padding: const EdgeInsets.symmetric(
horizontal: 32,
vertical: 16,
),
),
),
],
),
),
),
);
}
@override
void dispose() {
ZebraScanner.dispose();
super.dispose();
}
}
// Example 2: Inventory Scanner
class InventoryScannerExample extends StatefulWidget {
const InventoryScannerExample({super.key});
@override
State<InventoryScannerExample> createState() =>
_InventoryScannerExampleState();
}
class _InventoryScannerExampleState extends State<InventoryScannerExample> {
final Map<String, int> _inventory = {};
ScannerStatus _status = ScannerStatus.uninitialized;
@override
void initState() {
super.initState();
_initScanner();
}
Future<void> _initScanner() async {
await ZebraScanner.initialize();
ZebraScanner.scanResultStream.listen((result) {
setState(() {
_inventory[result.data] = (_inventory[result.data] ?? 0) + 1;
});
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Added: ${result.data}'),
duration: const Duration(seconds: 1),
backgroundColor: Colors.green,
),
);
});
ZebraScanner.statusStream.listen((status) {
setState(() => _status = status);
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Inventory Scanner'),
actions: [
IconButton(
icon: const Icon(Icons.delete_sweep),
onPressed: _inventory.isEmpty
? null
: () {
setState(() => _inventory.clear());
},
),
],
),
body: Column(
children: [
Container(
padding: const EdgeInsets.all(16),
color: Colors.blue[50],
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'Total Items: ${_inventory.values.fold(0, (a, b) => a + b)}',
style: const TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
Text(
'Unique: ${_inventory.length}',
style: const TextStyle(fontSize: 16),
),
],
),
),
Expanded(
child: _inventory.isEmpty
? const Center(
child: Text(
'Scan items to add to inventory',
style: TextStyle(fontSize: 16, color: Colors.grey),
),
)
: ListView.builder(
itemCount: _inventory.length,
itemBuilder: (context, index) {
final barcode = _inventory.keys.elementAt(index);
final count = _inventory[barcode]!;
return ListTile(
leading: CircleAvatar(child: Text('$count')),
title: Text(barcode),
trailing: IconButton(
icon: const Icon(Icons.remove_circle_outline),
onPressed: () {
setState(() {
if (count > 1) {
_inventory[barcode] = count - 1;
} else {
_inventory.remove(barcode);
}
});
},
),
);
},
),
),
],
),
floatingActionButton: FloatingActionButton.extended(
onPressed: _status == ScannerStatus.scanning
? () => ZebraScanner.stopScan()
: () => ZebraScanner.startScan(),
icon: Icon(
_status == ScannerStatus.scanning ? Icons.stop : Icons.play_arrow,
),
label: Text(_status == ScannerStatus.scanning ? 'Stop' : 'Scan'),
backgroundColor:
_status == ScannerStatus.scanning ? Colors.red : Colors.green,
),
);
}
@override
void dispose() {
ZebraScanner.dispose();
super.dispose();
}
}
// Example 3: Batch Scanner
class BatchScannerExample extends StatefulWidget {
const BatchScannerExample({super.key});
@override
State<BatchScannerExample> createState() => _BatchScannerExampleState();
}
class _BatchScannerExampleState extends State<BatchScannerExample> {
final List<ScanResult> _scans = [];
bool _isBatchMode = false;
@override
void initState() {
super.initState();
_initScanner();
}
Future<void> _initScanner() async {
await ZebraScanner.initialize();
ZebraScanner.scanResultStream.listen((result) {
setState(() {
_scans.insert(0, result);
});
});
}
void _toggleBatchMode() {
setState(() {
_isBatchMode = !_isBatchMode;
if (_isBatchMode) {
ZebraScanner.startScan();
} else {
ZebraScanner.stopScan();
}
});
}
void _exportBatch() {
final data = _scans.map((s) => s.data).join('\n');
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Exported ${_scans.length} items'),
action: SnackBarAction(
label: 'View',
onPressed: () {
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text('Batch Data'),
content: SingleChildScrollView(child: Text(data)),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Close'),
),
],
),
);
},
),
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Batch Scanner'),
actions: [
if (_scans.isNotEmpty)
IconButton(icon: const Icon(Icons.upload), onPressed: _exportBatch),
if (_scans.isNotEmpty)
IconButton(
icon: const Icon(Icons.clear_all),
onPressed: () {
setState(() => _scans.clear());
},
),
],
),
body: Column(
children: [
Container(
padding: const EdgeInsets.all(16),
color: _isBatchMode ? Colors.green[50] : Colors.grey[100],
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
_isBatchMode
? 'Batch Mode Active'
: 'Batch Mode Inactive',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: _isBatchMode ? Colors.green : Colors.grey,
),
),
Text(
'Scanned: ${_scans.length}',
style: const TextStyle(fontSize: 14),
),
],
),
Switch(
value: _isBatchMode,
onChanged: (_) => _toggleBatchMode(),
),
],
),
),
Expanded(
child: _scans.isEmpty
? const Center(
child: Text(
'Enable batch mode and start scanning',
style: TextStyle(fontSize: 16, color: Colors.grey),
),
)
: ListView.builder(
itemCount: _scans.length,
itemBuilder: (context, index) {
final scan = _scans[index];
return Card(
margin: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 4,
),
child: ListTile(
leading: CircleAvatar(
child: Text('${_scans.length - index}'),
),
title: Text(scan.data),
subtitle: Text(
'${scan.type ?? 'Unknown'} • ${_formatTime(scan.timestamp)}',
),
),
);
},
),
),
],
),
);
}
String _formatTime(DateTime time) {
return '${time.hour.toString().padLeft(2, '0')}:'
'${time.minute.toString().padLeft(2, '0')}:'
'${time.second.toString().padLeft(2, '0')}';
}
@override
void dispose() {
ZebraScanner.dispose();
super.dispose();
}
}
// Example 4: Product Lookup
class ProductLookupExample extends StatefulWidget {
const ProductLookupExample({super.key});
@override
State<ProductLookupExample> createState() => _ProductLookupExampleState();
}
class _ProductLookupExampleState extends State<ProductLookupExample> {
String? _scannedBarcode;
Map<String, dynamic>? _productInfo;
bool _isLoading = false;
// Mock product database
final Map<String, Map<String, dynamic>> _products = {
'123456789': {
'name': 'Product A',
'price': 29.99,
'stock': 150,
'category': 'Electronics',
},
'987654321': {
'name': 'Product B',
'price': 49.99,
'stock': 75,
'category': 'Accessories',
},
};
@override
void initState() {
super.initState();
_initScanner();
}
Future<void> _initScanner() async {
await ZebraScanner.initialize();
ZebraScanner.scanResultStream.listen((result) {
_lookupProduct(result.data);
});
}
Future<void> _lookupProduct(String barcode) async {
setState(() {
_scannedBarcode = barcode;
_isLoading = true;
_productInfo = null;
});
// Simulate API call
await Future.delayed(const Duration(seconds: 1));
setState(() {
_productInfo = _products[barcode];
_isLoading = false;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Product Lookup')),
body: Center(
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
if (_scannedBarcode == null)
const Column(
children: [
Icon(Icons.search, size: 100, color: Colors.grey),
SizedBox(height: 24),
Text(
'Scan a barcode to lookup product',
style: TextStyle(fontSize: 18, color: Colors.grey),
textAlign: TextAlign.center,
),
],
)
else if (_isLoading)
const Column(
children: [
CircularProgressIndicator(),
SizedBox(height: 24),
Text('Looking up product...'),
],
)
else if (_productInfo != null)
Card(
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
_productInfo!['name'],
style: const TextStyle(
fontSize: 24,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
_buildInfoRow('Barcode', _scannedBarcode!),
_buildInfoRow('Price', '\$${_productInfo!['price']}'),
_buildInfoRow(
'Stock',
'${_productInfo!['stock']} units',
),
_buildInfoRow('Category', _productInfo!['category']),
],
),
),
)
else
Card(
color: Colors.red[50],
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
children: [
const Icon(
Icons.error_outline,
size: 64,
color: Colors.red,
),
const SizedBox(height: 16),
const Text(
'Product Not Found',
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 8),
Text('Barcode: $_scannedBarcode'),
],
),
),
),
const SizedBox(height: 32),
ElevatedButton.icon(
onPressed: () => ZebraScanner.startScan(),
icon: const Icon(Icons.qr_code_scanner),
label: const Text('Scan Another'),
style: ElevatedButton.styleFrom(
padding: const EdgeInsets.symmetric(
horizontal: 32,
vertical: 16,
),
),
),
],
),
),
),
);
}
Widget _buildInfoRow(String label, String value) {
return Padding(
padding: const EdgeInsets.symmetric(vertical: 8),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(label, style: TextStyle(fontSize: 16, color: Colors.grey[600])),
Text(
value,
style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
),
],
),
);
}
@override
void dispose() {
ZebraScanner.dispose();
super.dispose();
}
}Metadata
3
likes
150
points
94
downloads
Documentation
Publisher
unverified uploader
Weekly Downloads
Metadata
A Flutter plugin for Zebra Technologies barcode scanner devices (TC-series, MC-series, EC-series). Uses the DataWedge API to deliver scan results via a reactive stream. Developed by Rishvi for use with Zebra Android hardware.
Homepage
Repository (GitHub)
View/report issues
License
MIT (license)
Dependencies
More
Packages that depend on rishvi_zebra_scanner
Packages that implement rishvi_zebra_scanner
