import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_barcodes/barcodes.dart';

class QRCodeExample extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('QR Code')),
      body: Center(
        child: Container(
          height: 300,
          width: 300,
          child: SfBarcodeGenerator(
            value: 'https://www.syncfusion.com',
            symbology: QRCode(),
            showValue: true,
          ),
        ),
      ),
    );
  }
}

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_barcodes/barcodes.dart';

class Code128Example extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Code128 Barcode')),
      body: Center(
        child: Container(
          height: 150,
          child: SfBarcodeGenerator(
            value: 'SYNCFUSION',
            symbology: Code128(),
            showValue: true,
          ),
        ),
      ),
    );
  }
}

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_barcodes/barcodes.dart';

class RetailBarcodeExample extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Product Barcode')),
      body: Center(
        child: Container(
          height: 150,
          width: 280,
          child: SfBarcodeGenerator(
            value: '9735940564824',
            symbology: EAN13(),
            showValue: true,
          ),
        ),
      ),
    );
  }
}

SfBarcodeGenerator(
  value: 'https://www.example.com/product/12345',
  symbology: QRCode(
    errorCorrectionLevel: ErrorCorrectionLevel.high,
    codeVersion: QRCodeVersion.auto,
    inputMode: QRInputMode.binary,
  ),
  showValue: true,
  textSpacing: 10,
)

SfBarcodeGenerator(
  value: 'PRODUCT-12345',
  symbology: Code128(module: 2),
  barColor: Colors.deepPurple,
  backgroundColor: Colors.grey[100],
  textStyle: TextStyle(
    fontSize: 16,
    fontWeight: FontWeight.bold,
    color: Colors.deepPurple,
  ),
  showValue: true,
  textAlign: TextAlign.center,
  textSpacing: 15,
)

class BarcodeList extends StatelessWidget {
  final List<BarcodeItem> barcodeTypes = [
    BarcodeItem('Code128', '12345678', Code128()),
    BarcodeItem('QR Code', 'https://example.com', QRCode()),
    BarcodeItem('EAN13', '9735940564824', EAN13()),
    BarcodeItem('Code39', 'CODE39', Code39()),
  ];

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: barcodeTypes.length,
      itemBuilder: (context, index) {
        final item = barcodeTypes[index];
        return Card(
          margin: EdgeInsets.all(8),
          child: Padding(
            padding: EdgeInsets.all(16),
            child: Column(
              children: [
                Text(
                  item.name,
                  style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                ),
                SizedBox(height: 10),
                Container(
                  height: 150,
                  child: SfBarcodeGenerator(
                    value: item.value,
                    symbology: item.symbology,
                    showValue: true,
                  ),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}

class BarcodeItem {
  final String name;
  final String value;
  final Symbology symbology;
  
  BarcodeItem(this.name, this.value, this.symbology);
}

class ResponsiveBarcode extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final screenWidth = MediaQuery.of(context).size.width;
    final barcodeSize = screenWidth * 0.8;

    return Center(
      child: Container(
        height: barcodeSize,
        width: barcodeSize,
        child: SfBarcodeGenerator(
          value: 'RESPONSIVE-BARCODE',
          symbology: QRCode(),
          showValue: true,
        ),
      ),
    );
  }
}