pax_player 0.0.8

A Flutter package for POS (Point of Sale) devices, providing essential methods for card reading, barcode scanning, QR code scanning, and more.

example/lib/main.dart

import 'dart:ui' as ui;
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_pax_printer_utility/flutter_pax_printer_utility.dart';
import 'package:pax_player/pax_player.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: 'Pax Player Demo',
      debugShowCheckedModeBanner: false,
      // home: MyHomePage(title: 'Test Pax Player'),
      home: MainPax(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({
    required this.title,
    super.key,
  });

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final GlobalKey _globalKey = GlobalKey();
  bool isLoading = false;

  Future<Uint8List?> _capturePng() async {
    try {
      RenderRepaintBoundary boundary = _globalKey.currentContext!
          .findRenderObject() as RenderRepaintBoundary;
      ui.Image image = await boundary.toImage(pixelRatio: 3.0);
      ByteData? byteData =
          await image.toByteData(format: ui.ImageByteFormat.png);
      var pngBytes = byteData!.buffer.asUint8List();
      return pngBytes;
    } catch (e) {
      if (context.mounted) {
        ScaffoldMessenger.of(context).showSnackBar(SnackBar(
          content: Text(e.toString()),
          backgroundColor: Colors.red,
        ));
      }
    }
    return null;
  }

  Future<void> _printReceiptBitmap() async {
    Uint8List? bitmapWidget = await _capturePng();
    if (bitmapWidget != null) {
      await PaxPrinter().initPrinter();
      await PaxPrinter().setGray(3);
      await PaxPrinter().printBitmap(bitmapWidget);
      await PaxPrinter().start();
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Print From Bitmap"),
        actions: [
          IconButton(
              onPressed: _printReceiptBitmap, icon: const Icon(Icons.print)),
        ],
      ),
      body: RepaintBoundary(
        key: _globalKey,
        child: Container(
          decoration: const BoxDecoration(color: Colors.white),
          child: const Center(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Text('تست فارسی'),
                Text('تست فارسی'),
                Text('تست فارسی'),
                Text('تست فارسی'),
                Text('تست فارسی'),
                Text('تست فارسی'),
                Text('تست فارسی'),
                Text('تست فارسی'),
                Text('تست فارسی'),
                Text('تست فارسی'),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

class SignBarcode extends StatefulWidget {
  const SignBarcode({super.key});

  @override
  State<SignBarcode> createState() => _SignBarcodeState();
}

class _SignBarcodeState extends State<SignBarcode> {
  // final TextEditingController _number = TextEditingController();
  // final TextEditingController _count = TextEditingController();
  //
  // @override
  // void dispose() {
  //   _number.dispose();
  //   _count.dispose();
  //   super.dispose();
  // }

  printQrCode() async {
    await FlutterPaxPrinterUtility.init;
    await FlutterPaxPrinterUtility.fontSet(
        EFontTypeAscii.FONT_24_24, EFontTypeExtCode.FONT_24_24);
    await FlutterPaxPrinterUtility.printQRCode('123456789', 512, 512);
    await FlutterPaxPrinterUtility.step(150);
    var status = await FlutterPaxPrinterUtility.start();
    return status;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('ثبت نام / بارکد'),
      ),
      body: Column(
        children: [
          const Text('شماره موبایل:'),
          const SizedBox(height: 10),
          TextField(
            inputFormatters: [FilteringTextInputFormatter.digitsOnly],
            keyboardType: TextInputType.number,
          ),
          const SizedBox(height: 10),
          const Text('تعداد همراه:'),
          const SizedBox(height: 10),
          TextField(
            inputFormatters: [FilteringTextInputFormatter.digitsOnly],
            keyboardType: TextInputType.number,
          ),
          const SizedBox(height: 50),
          ElevatedButton(
              onPressed: () => printQrCode(), child: const Text('چاپ')),
        ],
      ),
    );
  }
}

class SignCard extends StatefulWidget {
  const SignCard({super.key});

  @override
  State<SignCard> createState() => _SignCardState();
}

class _SignCardState extends State<SignCard> {
  String _cardNumber = 'کارت را بکشید';

  Future<void> _getCardNumber() async {
    setState(() {
      _cardNumber = 'کارت را بکشید';
    });
    String? number;

    try {
      await FlutterPaxPrinterUtility.init;
      await FlutterPaxPrinterUtility.fontSet(
          EFontTypeAscii.FONT_24_24, EFontTypeExtCode.FONT_24_24);
      await FlutterPaxPrinterUtility.spaceSet(0, 10);
      String? result = await PaxPlayer().getCardNumber();
      if (result != null) {
        number = 'عملیات با موفقیت انجام شد';
      }
    } on PlatformException catch (e) {
      number = "Failed to get barcode: '${e.message}'.";
    }
    if (!mounted) return;
    setState(() {
      _cardNumber = number!;
    });
    await FlutterPaxPrinterUtility.printQRCode('12345678', 512, 512);
    await FlutterPaxPrinterUtility.step(150);
    final status = await FlutterPaxPrinterUtility.start();
    debugPrint(status);
    await PaxPlayer().getBeep(100);
    setState(() {
      _cardNumber = 'number';
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('ثبت نام / کارت'),
      ),
      body: Column(
        children: [
          const Text('شماره موبایل:'),
          const SizedBox(height: 10),
          TextField(
            inputFormatters: [FilteringTextInputFormatter.digitsOnly],
            keyboardType: TextInputType.number,
          ),
          const SizedBox(height: 10),
          const Text('تعداد همراه:'),
          const SizedBox(height: 10),
          TextField(
            inputFormatters: [FilteringTextInputFormatter.digitsOnly],
            keyboardType: TextInputType.number,
          ),
          const SizedBox(height: 50),
          ElevatedButton(
              onPressed: () {
                _getCardNumber();
              },
              child: const Text('کارت بکشید')),
          const SizedBox(height: 30),
          _cardNumber.contains('عملیات')
              ? Text(_cardNumber)
              : const SizedBox.shrink(),
        ],
      ),
    );
  }
}

class ScanCard extends StatefulWidget {
  const ScanCard({super.key});

  @override
  State<ScanCard> createState() => _ScanCardState();
}

class _ScanCardState extends State<ScanCard> {
  String _cardNumber = 'کارت را بکشید';

  Future<void> _getCardNumber() async {
    setState(() {
      _cardNumber = 'کارت را بکشید';
    });
    String? number;

    try {
      String? result = await PaxPlayer().getCardNumber();
      if (result != null) {
        number = 'عملیات با موفقیت انجام شد';
      }
    } on PlatformException catch (e) {
      number = "Failed to get barcode: '${e.message}'.";
    }
    if (!mounted) return;
    setState(() {
      _cardNumber = number!;
    });
    await PaxPlayer().getBeep(100);
    Future.delayed(const Duration(milliseconds: 500), _getCardNumber);
  }

  @override
  void initState() {
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      _getCardNumber();
    });
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('اسکن کارت'),
      ),
      body: SizedBox(
        width: double.infinity,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.center,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(_cardNumber),
          ],
        ),
      ),
    );
  }
}

class ScanBarcode extends StatefulWidget {
  const ScanBarcode({super.key});

  @override
  State<ScanBarcode> createState() => _ScanBarcodeState();
}

class _ScanBarcodeState extends State<ScanBarcode> {
  String _barcodeData = 'بارکد را اسکن نمایید';

  Future<void> _getBarcode() async {
    setState(() {
      _barcodeData = 'بارکد را اسکن نمایید';
    });
    String? number;

    try {
      String? result = await PaxPlayer().getScanBarcode();
      if (result != null) {
        number = 'عملیات با موفقیت انجام شد';
      }
    } on PlatformException catch (e) {
      number = "Failed to get barcode: '${e.message}'.";
    }
    if (!mounted) return;
    setState(() {
      _barcodeData = number!;
    });
    await PaxPlayer().getBeep(100);
  }

  @override
  void initState() {
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      _getBarcode();
    });
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      floatingActionButton: FloatingActionButton(
        onPressed: () => _getBarcode(),
        child: const Icon(Icons.qr_code_scanner_outlined),
      ),
      appBar: AppBar(
        title: const Text('اسکن بارکد'),
      ),
      body: SizedBox(
        width: double.infinity,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.center,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(_barcodeData),
          ],
        ),
      ),
    );
  }
}

class MainPax extends StatelessWidget {
  const MainPax({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('پدیده'),
      ),
      body: SizedBox(
        width: double.infinity,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            ElevatedButton(
                onPressed: () {
                  Navigator.push(
                      context,
                      MaterialPageRoute(
                          builder: (context) => const SignBarcode()));
                },
                child: const Text('ثبت نام / بارکد')),
            ElevatedButton(
                onPressed: () {
                  Navigator.push(
                      context,
                      MaterialPageRoute(
                          builder: (context) => const SignCard()));
                },
                child: const Text('ثبت نام / کارت')),
            ElevatedButton(
                onPressed: () {
                  Navigator.push(
                      context,
                      MaterialPageRoute(
                          builder: (context) => const ScanCard()));
                },
                child: const Text('اسکن / کارت')),
            ElevatedButton(
                onPressed: () {
                  Navigator.push(
                      context,
                      MaterialPageRoute(
                          builder: (context) => const ScanBarcode()));
                },
                child: const Text('اسکن / بارکد')),
          ],
        ),
      ),
    );
  }
}