Cartona Sunmi Printer

A wrapper around Sunmi's Android printer SDK.

Installation

flutter pub add cartona_sunmi_printer

Tested Devices

• Sunmi V2 Pro
• Sunmi V2S

Sample Usage

In your flutter application, add the following:

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:cartona_sunmi_printer/cartona_sunmi_printer.dart';

void main() => runApp(const CartonaPrinterDemo());

class CartonaPrinterDemo extends StatelessWidget {
  const CartonaPrinterDemo({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      home: DemoScreen(),
    );
  }
}

class DemoScreen extends StatefulWidget {
  const DemoScreen({Key? key}) : super(key: key);

  @override
  State<DemoScreen> createState() => _DemoScreenState();
}

class _DemoScreenState extends State<DemoScreen> {
  bool _isBound = false;

  @override
  void initState() {
    super.initState();
    debugPrint('[CartonaPrinterDemo] Initializing printer');
    CartonaSunmiPrinter.initializePrinter().then((_) {
      setState(() => _isBound = true);
      debugPrint('[CartonaPrinterDemo] Printer initialized');
      showMessage('[CartonaPrinterDemo] Printer initialized');
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Cartona Sunmi Printer Demo'),
      ),
      body: Center(
        child: ListView(
          shrinkWrap: true,
          padding: const EdgeInsets.symmetric(horizontal: 32),
          children: [
            ElevatedButton(
              onPressed: !_isBound ? null : () => printSampleReceipt(),
              child: const Text('Print Sample Receipt'),
            ),
          ],
        ),
      ),
    );
  }

  Future<void> printSampleReceipt() async {
    await CartonaSunmiPrinter.startTransection();

    await CartonaSunmiPrinter.setFontSize(24);
    await CartonaSunmiPrinter.setBold(true);

    await CartonaSunmiPrinter.setAlignment(SunmiPrintAlign.center);
    await CartonaSunmiPrinter.printText("Hello World");

    await CartonaSunmiPrinter.endTransection();
  }
}

For more details on usage, please check on the sample app in the example directory.

Available Methods