sunmi_printer_plus 4.2.0 
sunmi_printer_plus: ^4.2.0 copied to clipboard
Published 8 days ago • 
marcus.brasizza.com
marcus.brasizza.comSupport V2 Pro Sunmi Label Version and Null safety. With this package you can connect with Sunmi printers, print text, image, qrcode, barcodes and a custom Esc/Pos if you like.
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:sunmi_printer_plus/sunmi_printer_plus.dart';
import 'package:sunmi_printer_plus_example/src/cash_drawer.dart';
import 'package:sunmi_printer_plus_example/src/lcd_controller.dart';
import 'package:sunmi_printer_plus_example/src/printer_controller.dart';
import 'package:sunmi_printer_plus_example/src/status_controller.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
PrinterStatus statusPrinter = PrinterStatus.UNKNOWN;
String version = "";
String idPrinter = "";
String paperPrinter = "";
String typePrinter = "";
String cashDrawerStatus = "Close";
late final PrinterController printerController;
late final StatusController statusController;
late final LcdController lcdController;
late final CashDrawer cashDrawer;
@override
void initState() {
final SunmiPrinterPlus sunmiPrinterPlus = SunmiPrinterPlus();
printerController = PrinterController(printer: sunmiPrinterPlus);
statusController = StatusController(printer: sunmiPrinterPlus);
lcdController = LcdController(printer: sunmiPrinterPlus);
cashDrawer = CashDrawer(printer: sunmiPrinterPlus);
super.initState();
_showInformations();
// Run all futures in parallel
}
void _showInformations() {
Future.delayed(const Duration(milliseconds: 0)).then((_) {
Future.wait([
statusController.getVersion(),
statusController.getPaper(),
statusController.getId(),
statusController.getType(),
statusController.getStatus(),
]).then((results) {
setState(() {
// Unwrap the results into corresponding variables
version = results[0].toString();
paperPrinter = results[1].toString();
idPrinter = results[2].toString();
typePrinter = results[3].toString();
statusPrinter = results[4] as PrinterStatus;
});
});
});
}
// Platform messages are asynchronous, so we initialize in an async method.
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Center(child: Text('Sunmi printer example')),
),
body: SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 10),
child: Column(
children: [
Text("Version: $version"),
Row(
children: [
OutlinedButton(
onPressed: () async {
final status = await statusController.getStatus();
setState(() {
statusPrinter = status;
});
},
child: const Icon(Icons.refresh),
),
const SizedBox(width: 10),
Text("Printer Status : ${statusPrinter.name}"),
],
),
const Divider(),
Text("Printer ID : $idPrinter"),
Text("Printer Paper : $paperPrinter"),
Text("Printer Type : $typePrinter"),
const Divider(),
Wrap(
spacing: 10,
runSpacing: 10,
children: [
OutlinedButton(
onPressed: () async {
await printerController.reconnectPrinter();
_showInformations();
},
child: const Text("Reconnect Printer"),
),
OutlinedButton(
onPressed: () async {
await printerController.printQRCode(
"I love flutter",
style: SunmiQrcodeStyle(
align: SunmiPrintAlign.LEFT,
errorLevel: SunmiQrcodeLevel.LEVEL_H,
qrcodeSize: 3,
),
);
},
child: const Text("Qrcode"),
),
OutlinedButton(
onPressed: () async {
await printerController.printBarcode(
text: "1234567890",
style: SunmiBarcodeStyle(
align: SunmiPrintAlign.RIGHT,
height: 100,
size: 2,
type: SunmiBarcodeType.CODABAR,
textPos: SunmiBarcodeTextPos.NO_TEXT,
),
);
},
child: const Text("Barcode"),
),
OutlinedButton(
onPressed: () async {
await printerController.line(
style: SunmiPrintLine.SOLID,
);
},
child: const Text("Print Line"),
),
OutlinedButton(
onPressed: () async {
await printerController.lineWrap(2);
},
child: const Text("lineWrap"),
),
OutlinedButton(
onPressed: () async {
await printerController.cutPaper();
},
child: const Text("Move page exit or cut (if cutter)"),
),
],
),
const Padding(
padding: EdgeInsets.all(8.0),
child: Text('Print text'),
),
Wrap(
spacing: 10,
runSpacing: 10,
children: [
OutlinedButton(
onPressed: () async {
await printerController.printCustomText(
sunmiText: SunmiText(
text: 'I love flutter',
style: SunmiTextStyle(align: SunmiPrintAlign.LEFT),
),
);
},
child: const Text("Aligned Left"),
),
OutlinedButton(
onPressed: () async {
await printerController.printCustomText(
sunmiText: SunmiText(
text: 'I love flutter',
style: SunmiTextStyle(align: SunmiPrintAlign.RIGHT),
),
);
},
child: const Text("Aligned Right"),
),
OutlinedButton(
onPressed: () async {
await printerController.printCustomText(
sunmiText: SunmiText(
text: 'I love flutter',
style: SunmiTextStyle(bold: true),
),
);
},
child: const Text("Bold"),
),
OutlinedButton(
onPressed: () async {
await printerController.printCustomText(
sunmiText: SunmiText(
text: 'I love flutter',
style: SunmiTextStyle(reverse: true),
),
);
},
child: const Text("Reversed (Black/White)"),
),
OutlinedButton(
onPressed: () async {
await printerController.printCustomText(
sunmiText: SunmiText(text: 'I love flutter'),
);
},
child: const Text("Print text (No style)"),
),
OutlinedButton(
onPressed: () async {
await printerController.printCustomText(
sunmiText: SunmiText(
text: 'I love flutter',
style: SunmiTextStyle(fontSize: 1),
),
);
},
child: const Text("Smaller font possible"),
),
OutlinedButton(
onPressed: () async {
await printerController.printCustomText(
sunmiText: SunmiText(
text: 'Flutter',
style: SunmiTextStyle(fontSize: 96),
),
);
},
child: const Text("Biggest font possible"),
),
OutlinedButton(
onPressed: () async {
await printerController.printCustomText(
sunmiText: SunmiText(
text: 'Flutter',
style: SunmiTextStyle(fontSize: 96),
),
);
},
child: const Text("Biggest font possible"),
),
OutlinedButton(
onPressed: () async {
await printerController.addText(
sunmiTexts: [
SunmiText(text: 'I '),
SunmiText(
text: 'love ',
style: SunmiTextStyle(
bold: true,
align: SunmiPrintAlign.CENTER,
),
),
SunmiText(
text: 'React ',
style: SunmiTextStyle(strikethrough: true),
),
SunmiText(
text: 'Flutter ',
style: SunmiTextStyle(
fontSize: 50,
underline: true,
bold: true,
),
),
],
);
},
child: const Text("Multiple formats"),
),
OutlinedButton(
onPressed: () async {
await printerController.printRow(
cols: [
SunmiColumn(text: 'Name', width: 2),
SunmiColumn(text: 'Qty', width: 1),
SunmiColumn(text: 'UN', width: 1),
SunmiColumn(
text: 'TOT',
width: 2,
style: SunmiTextStyle(bold: true),
),
],
);
},
child: const Text("Column"),
),
OutlinedButton(
onPressed: () async {
await printerController.printText(
'Payment receipt',
style: SunmiTextStyle(
bold: true,
align: SunmiPrintAlign.CENTER,
),
);
await printerController.line();
await printerController.lineWrap(2);
await printerController.printRow(
cols: [
SunmiColumn(text: 'Name', width: 12),
SunmiColumn(text: 'Qty', width: 6),
SunmiColumn(text: 'UN', width: 6),
SunmiColumn(text: 'TOT', width: 6),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: 'Fries', width: 12),
SunmiColumn(text: '4x', width: 6),
SunmiColumn(text: '3.00', width: 6),
SunmiColumn(text: '12.00', width: 6),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: 'Strawberry', width: 12),
SunmiColumn(text: '1x', width: 6),
SunmiColumn(text: '24.44', width: 6),
SunmiColumn(text: '24.44', width: 6),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: 'Soda', width: 12),
SunmiColumn(text: '1x', width: 6),
SunmiColumn(text: '1.99', width: 6),
SunmiColumn(text: '1.99', width: 6),
],
);
await printerController.line();
await printerController.printRow(
cols: [
SunmiColumn(text: 'TOTAL', width: 25),
SunmiColumn(text: '38.43', width: 5),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: 'ARABIC TEXT', width: 15),
SunmiColumn(text: 'اسم المشترك', width: 15),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: 'اسم المشترك', width: 15),
SunmiColumn(text: 'اسم المشترك', width: 15),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: 'RUSSIAN TEXT', width: 15),
SunmiColumn(text: 'Санкт-Петербу́рг', width: 15),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: 'Санкт-Петербу́рг', width: 15),
SunmiColumn(text: 'Санкт-Петербу́рг', width: 15),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: 'CHINESE TEXT', width: 15),
SunmiColumn(text: '風俗通義', width: 15),
],
);
await printerController.printRow(
cols: [
SunmiColumn(text: '風俗通義', width: 15),
SunmiColumn(text: '風俗通義', width: 15),
],
);
await printerController.printText(
'Transaction\'s Qrcode',
style: SunmiTextStyle(
align: SunmiPrintAlign.CENTER,
bold: true,
fontSize: 30,
),
);
await printerController.printQRCode(
'https://github.com/brasizza/sunmi_printer',
);
await printerController.lineWrap(2);
},
child: const Text("Receipt builder (No ESC-POS)"),
),
],
),
const Padding(
padding: EdgeInsets.all(8.0),
child: Text('Print Image'),
),
Wrap(
spacing: 10,
runSpacing: 10,
children: [
OutlinedButton(
onPressed: () async {
final assetImage = await SunmiHelper.getImageFromAsset(
'assets/images/dash.jpeg',
);
await printerController.printImage(image: assetImage);
},
child: Column(
children: [
const SizedBox(height: 5),
Image.asset('assets/images/dash.jpeg', width: 50),
const Text("Print from asset"),
const SizedBox(height: 5),
],
),
),
OutlinedButton(
onPressed: () async {
String url =
'https://avatars.githubusercontent.com/u/14101776?s=100';
// convert image to Uint8List format
Uint8List assetImage = (await NetworkAssetBundle(
Uri.parse(url),
).load(url)).buffer.asUint8List();
await printerController.printImage(
image: assetImage,
align: SunmiPrintAlign.CENTER,
);
},
child: Column(
children: [
const SizedBox(height: 5),
Image.network(
'https://avatars.githubusercontent.com/u/14101776?s=50',
),
const Text("Print from web (center)"),
const SizedBox(height: 5),
],
),
),
],
),
const Padding(
padding: EdgeInsets.all(8.0),
child: Text('Command Printer'),
),
Wrap(
spacing: 10,
runSpacing: 10,
children: [
OutlinedButton(
onPressed: () async {
final escPos = await printerController.customEscPos();
await printerController.printEscPos(data: escPos);
},
child: const Text("Print Escpos"),
),
OutlinedButton(
onPressed: () async {
const tspl =
"! 0 200 200 400 1\nTEXT 100 100 \"3\" \"Hello, TSPL!\"\nPRINT\n";
await printerController.printTSPL(data: tspl);
},
child: const Text("Print TSPL (Label printer only)"),
),
],
),
const Padding(
padding: EdgeInsets.all(8.0),
child: Text('LCD COMMAND (If apliacable T1 MINI, T2 MINI)'),
),
Wrap(
spacing: 10,
runSpacing: 10,
children: [
OutlinedButton(
onPressed: () async {
await lcdController.config(status: SunmiLCDStatus.INIT);
},
child: const Text("Init LCD"),
),
OutlinedButton(
onPressed: () async {
await lcdController.config(
status: SunmiLCDStatus.SLEEP,
);
},
child: const Text("Sleep LCD"),
),
OutlinedButton(
onPressed: () async {
await lcdController.config(status: SunmiLCDStatus.WAKE);
},
child: const Text("Sleep WAKE UP"),
),
OutlinedButton(
onPressed: () async {
await lcdController.config(
status: SunmiLCDStatus.CLEAR,
);
},
child: const Text("Clear LCD"),
),
OutlinedButton(
onPressed: () async {
await lcdController.sendTextLCD(
'I love flutter',
size: 10,
fill: false,
);
},
child: const Text("Insert text"),
),
OutlinedButton(
onPressed: () async {
await lcdController.showDigital('122.90');
},
child: const Text(
"LCD Price (7 digits from 0 to 9 and “.”)",
),
),
OutlinedButton(
onPressed: () async {
final assetImage = await SunmiHelper.getImageFromAsset(
'assets/images/dash.jpeg',
);
await lcdController.lcdImage(image: assetImage);
},
child: Column(
children: [
const SizedBox(height: 5),
Image.asset('assets/images/dash.jpeg', width: 50),
const Text("Send to LCD"),
const SizedBox(height: 5),
],
),
),
],
),
const Padding(
padding: EdgeInsets.all(8.0),
child: Text('Cash Drawers (if avaliable)'),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: Text('Cash Drawers is $cashDrawerStatus'),
),
Wrap(
spacing: 10,
runSpacing: 10,
children: [
OutlinedButton(
onPressed: () async {
await cashDrawer.openDrawer();
},
child: const Text("Open drawer"),
),
OutlinedButton(
onPressed: () async {
final statusDrawer = await cashDrawer.isDrawerOpen();
if (statusDrawer) {
setState(() {
cashDrawerStatus = "Open";
});
} else {
setState(() {
cashDrawerStatus = "Close";
});
}
},
child: const Text("Check if open"),
),
],
),
],
),
),
),
),
);
}
}Metadata
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points
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downloads
Documentation
Publisher
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Metadata
Support V2 Pro Sunmi Label Version and Null safety. With this package you can connect with Sunmi printers, print text, image, qrcode, barcodes and a custom Esc/Pos if you like.
Repository (GitHub)
View/report issues
License
BSD-3-Clause (license)
Dependencies
flutter, plugin_platform_interface
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