elgin 1.0.1 
elgin: ^1.0.1 copied to clipboard
marcus.brasizza.comEste package tem como finalidade a comunicação de um jeito fácil com vários equipamentos elgin, como SAT, impressoras térmicas e mini PDVs
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'package:elgin/elgin.dart';
import 'package:esc_pos_utils/esc_pos_utils.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:path_provider/path_provider.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({Key? key}) : super(key: key);
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Sunmi Printer',
theme: ThemeData(primaryColor: Colors.black),
debugShowCheckedModeBanner: false,
home: const Home(),
);
}
}
class Home extends StatefulWidget {
const Home({Key? key}) : super(key: key);
@override
_HomeState createState() => _HomeState();
}
class _HomeState extends State<Home> {
bool printBinded = false;
String url =
'https://github.githubassets.com/images/modules/logos_page/GitHub-Mark.png';
String printerVersion = "";
@override
void initState() {
super.initState();
}
Future<int?> startPrinter(ElginPrinter driver) async {
try {
final int? result = await Elgin.printer.connect(driver: driver);
setState(() {
printBinded = result == 0 ? true : false;
});
if (result == 0) {
String version = await Elgin.printer.libVersion;
setState(() {
printerVersion = version;
});
}
return result;
} on ElginException catch (e) {
ScaffoldMessenger.of(
context,
).showSnackBar(SnackBar(content: Text(e.error.message)));
return null;
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('ELGIN printer Example')),
body: SingleChildScrollView(
child: Column(
children: [
Padding(
padding: const EdgeInsets.only(top: 10),
child: Text("Print binded: " + printBinded.toString()),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 2.0),
child: Text("Printer version: " + printerVersion),
),
const Divider(),
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
final _driver = ElginPrinter(
type: ElginPrinterType.MINIPDV,
);
await startPrinter(_driver);
},
child: const Text('Start M8/M10 printer'),
),
ElevatedButton(
onPressed: () async {
final _driver = ElginPrinter(
type: ElginPrinterType.TCP,
model: ElginPrinterModel.GENERIC_TCP,
connection: '192.168.5.111',
parameter: 9100,
);
await startPrinter(_driver);
},
child: const Text(
'Start TCP/IP Printer (change IP in example)',
),
),
ElevatedButton(
onPressed: () async {
final _driver = ElginPrinter(
type: ElginPrinterType.USB,
model: ElginPrinterModel.MP2800,
connection: 'USB',
parameter: 115200,
);
await startPrinter(_driver);
},
child: const Text('USB PRINTER'),
),
ElevatedButton(
onPressed: () async {
final _driver = ElginPrinter(
type: ElginPrinterType.BLUETHOOTH,
model: ElginPrinterModel.SMARTPOS,
connection: 'F4:5E:AB:D9:6C:3F',
parameter: 0,
);
await startPrinter(_driver);
},
child: const Text('BLUETOOTH PRINTER'),
),
],
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printQRCode(
"https://github.com/brasizza/flutter-elgin",
size: ElginQrcodeSize.SIZE5,
align: ElginAlign.CENTER,
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Print qrCode'),
),
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printBarCode(
'{C35170900246872000134590002121801051011580881',
barcodeType: EliginBarcodeType.CODE128,
textPosition: ElginBarcodeTextPosition.TEXT_UNDER,
align: ElginAlign.CENTER,
height: 100,
width: 3,
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Print barCode'),
),
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.line();
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Print line'),
),
ElevatedButton(
onPressed: () async {
await Elgin.printer.feed(2);
},
child: const Text('Wrap line'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printString(
'Hello I\'m bold',
isBold: true,
);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Bold Text'),
),
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printString(
'Normal font',
fontSize: ElginSize.MD,
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Normal font'),
),
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printString(
'Custom font',
fontSize: ElginSize.customFont(fontSize: 90),
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Custom font'),
),
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printString(
'Large font',
fontSize: ElginSize.LG,
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Large font'),
),
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printString(
'Very large font',
fontSize: ElginSize.XL,
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Very large font'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printString(
'Algin right',
align: ElginAlign.RIGHT,
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Align right'),
),
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printString(
'Algin left',
align: ElginAlign.RIGHT,
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Align left'),
),
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.printString(
'Align center/ LARGE TEXT AND BOLD',
align: ElginAlign.CENTER,
isBold: true,
fontSize: ElginSize.XL,
isUnderline: true,
);
await Elgin.printer.feed(2);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Align center'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
GestureDetector(
onTap: () async {
Uint8List byte = await _getImageFromAsset(
'assets/images/dash.jpeg',
);
Directory tempPath = await getTemporaryDirectory();
File file = File('${tempPath.path}/dash.jpg');
await file.writeAsBytes(
byte.buffer.asUint8List(
byte.offsetInBytes,
byte.lengthInBytes,
),
);
try {
await Elgin.printer.printImage(file, false);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: Column(
children: [
Image.asset('assets/images/dash.jpeg', width: 100),
const Text('Print this image from asset!'),
],
),
),
GestureDetector(
onTap: () async {
// convert image to Uint8List format
Uint8List byte = (await NetworkAssetBundle(
Uri.parse(url),
).load(url)).buffer.asUint8List();
Directory tempPath = await getTemporaryDirectory();
File file = File('${tempPath.path}/onlineImage.jpg');
await file.writeAsBytes(
byte.buffer.asUint8List(
byte.offsetInBytes,
byte.lengthInBytes,
),
);
try {
await Elgin.printer.printImage(file, false);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: Column(
children: [
Image.network(url, width: 100),
const Text('Print this image from WEB!'),
],
),
),
],
),
),
const Divider(),
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.cut();
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('CUT PAPER'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
final List<int> _escPos = await _customEscPos();
await Elgin.printer.printRaw(_escPos);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Custom ESC/POS to print'),
),
],
),
),
],
),
const Divider(),
Text("Sensors"),
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
int _sensor = await Elgin.printer.statusSensor();
String messageSensor = 'Sensor is OK';
if (_sensor == 6) {
messageSensor = 'Paper is running out!';
}
if (_sensor == 7) {
messageSensor = 'No paper!';
}
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(messageSensor)),
);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Paper sensor'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.elginCashier();
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Elgin cashier'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.customCashier(1, 2, 3);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Custom cashier'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
try {
await Elgin.printer.beep(5, 10, 20);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('Beep'),
),
],
),
),
],
),
const Divider(),
Row(
children: [
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
String xmlSAT =
'<?xml version="1.0"?><CFe><infCFe versaoDadosEnt="0.07"><ide><CNPJ>08427847000169</CNPJ><signAC>SGR-SAT SISTEMA DE GESTAO E RETAGUARDA DO SAT</signAC><numeroCaixa>001</numeroCaixa></ide><emit><CNPJ>61099008000141</CNPJ><IE>111111111111</IE><IM>12345</IM><cRegTribISSQN>3</cRegTribISSQN><indRatISSQN>N</indRatISSQN></emit><dest/><det nItem="1"><prod><cProd>116</cProd><cEAN>9990000001163</cEAN><xProd>Cascao</xProd><CFOP>5405</CFOP><uCom>UN</uCom><qCom>1.0000</qCom><vUnCom>4.00</vUnCom><indRegra>A</indRegra></prod><imposto><ICMS><ICMSSN102><Orig>0</Orig><CSOSN>500</CSOSN></ICMSSN102></ICMS><PIS><PISSN><CST>49</CST></PISSN></PIS><COFINS><COFINSSN><CST>49</CST></COFINSSN></COFINS></imposto></det><total/><pgto><MP><cMP>01</cMP><vMP>4.00</vMP></MP></pgto></infCFe></CFe>';
try {
await Elgin.printer.printSAT(xmlSAT);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('PRINT SAT XML'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
String csc = '';
int cscId = 0;
String xmlNFCE = 'XML NFCE';
try {
await Elgin.printer.printNFCE(
xmlNFCE,
csc,
cscId,
param: 4,
);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('PRINT NFCE XML'),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () async {
String cupomTef =
'ICAgICAgICAgICAgICAgICBSRURFCiAgICAgICAgIE1BU1RFUkNBUkQgREVCSVRPICAgICAgICAgTApDT01QUk9WOiAxMjM0NTY3ODk5IFZBTE9SOiAgICAgICAgNDQsMDcKRVNUQUI6MTIzMzMzMyBFU1RBQkVMRUNJTUVOVE8gVEVTVEUgTFREQQpDTlBKL0NQRjoxMS4xMTEuMTExLzAwMDEtMTEKMDcuMTEuMjEtMjI6MTM6MDIgVEVSTTpQVjYzOTczMi8wMDAyNTMKQ0FSVEFPOiB4eHh4eHh4eHh4eHg5OTk5CkFVVE9SSVpBQ0FPOiAzMjE2NzcKQVJRQzpCRjZGM0IxN0RENTFDRDBBCkFJRDogQTAwMDAwMDAwNDQ0NDQ0CiAgICBUUkFOU0FDQU8gQVBST1ZBREEgUEVMTyBFTUlTU09SCgoKCgogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgKFNpVGVmKQo=';
try {
await Elgin.printer.printTEF(
utf8.decode(base64.decode(cupomTef)),
);
} on ElginException catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e.error.message)),
);
}
},
child: const Text('PRINT TEF BASE64'),
),
],
),
),
],
),
],
),
),
);
}
}
Future<Uint8List> readFileBytes(String path) async {
ByteData fileData = await rootBundle.load(path);
Uint8List fileUnit8List = fileData.buffer.asUint8List(
fileData.offsetInBytes,
fileData.lengthInBytes,
);
return fileUnit8List;
}
Future<Uint8List> _getImageFromAsset(String iconPath) async {
return await readFileBytes(iconPath);
}
Future<List<int>> _customEscPos() async {
final profile = await CapabilityProfile.load();
final generator = Generator(PaperSize.mm58, profile);
List<int> bytes = [];
bytes += generator.text(
'Regular: aA bB cC dD eE fF gG hH iI jJ kK lL mM nN oO pP qQ rR sS tT uU vV wW xX yY zZ',
);
bytes += generator.text('Bold text', styles: const PosStyles(bold: true));
bytes += generator.text(
'Reverse text',
styles: const PosStyles(reverse: true),
);
bytes += generator.text(
'Underlined text',
styles: const PosStyles(underline: true),
linesAfter: 1,
);
bytes += generator.text(
'Align left',
styles: const PosStyles(align: PosAlign.left),
);
bytes += generator.text(
'Align center',
styles: const PosStyles(align: PosAlign.center),
);
bytes += generator.text(
'Align right',
styles: const PosStyles(align: PosAlign.right),
linesAfter: 1,
);
bytes += generator.qrcode(
'Barcode by escpos',
size: QRSize.Size4,
cor: QRCorrection.H,
);
bytes += generator.feed(2);
bytes += generator.row([
PosColumn(
text: 'col3',
width: 3,
styles: const PosStyles(align: PosAlign.center, underline: true),
),
PosColumn(
text: 'col6',
width: 6,
styles: const PosStyles(align: PosAlign.center, underline: true),
),
PosColumn(
text: 'col3',
width: 3,
styles: const PosStyles(align: PosAlign.center, underline: true),
),
]);
bytes += generator.text(
'Text size 200%',
styles: const PosStyles(
height: PosTextSize.size2,
width: PosTextSize.size2,
),
);
bytes += generator.reset();
return bytes;
}Metadata
21
likes
160
points
365
downloads
Publisher
Weekly Downloads
Metadata
Este package tem como finalidade a comunicação de um jeito fácil com vários equipamentos elgin, como SAT, impressoras térmicas e mini PDVs
Documentation
License
BSD-3-Clause (license)
Dependencies
flutter, flutter_lints, plugin_platform_interface
