dart_esc_pos_driver

Description:

dart esc pos driver

dart_esc_pos_driver #
Connect the thermal printer and print data
example #
import 'package:dart_esc_pos_driver/api/printer.dart';
import 'package:dart_esc_pos_driver/dart_esc_pos_driver.dart';
import 'package:flutter/material.dart';

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

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

@override
State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
@override
void initState() {
super.initState();
}

@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Native Packages'),
),
body: ListView(
children: [
TextButton(
onPressed: _getConsolePrinter, child: const Text("连接控制台打印机"))
],
),
),
);
}

Future<void> _getConsolePrinter() async {
try {
print('开始连接打印机.');
final consolePrinter = await LddNetworkDriver.open(host: "", port: 0);
print(consolePrinter);
final printer = await consolePrinter.openPrinter();
print(printer);
await printer.init();
await printer.align(alignment: LddAlignment.center);
await printer.qr(
funCall: () {
return const DartQrBuilder(size: 200, text: "hello");
},
);
await printer.text(text: "hello 梁典典");
await printer.feed(n: 4);
await printer.cut();
await printer.flush();
print('结束');
} catch (e, s) {
print(e);
print(s);
}
}
}

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