zsdk 5.0.0 
zsdk: ^5.0.0 copied to clipboard
Published 9 days ago • 
dev.lamt.dev
dev.lamt.devA Flutter plugin for printers using Zebra Link OS, to allow ZPL and PDF priting over TCP/IP connections.
import 'package:flutter/material.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/services.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:zsdk/zsdk.dart' as Printer;
import 'dart:io';
void main() {
WidgetsFlutterBinding.ensureInitialized();
runApp(MaterialApp(home: MyApp()));
}
const String btnPrintPdfFileOverTCPIP = 'btnPrintPdfFileOverTCPIP';
const String btnPrintZplFileOverTCPIP = 'btnPrintZplFileOverTCPIP';
const String btnPrintZplDataOverTCPIP = 'btnPrintZplDataOverTCPIP';
const String btnCheckPrinterStatus = 'btnCheckPrinterStatus';
const String btnGetPrinterSettings = 'btnGetPrinterSettings';
const String btnSetPrinterSettings = 'btnSetPrinterSettings';
const String btnResetPrinterSettings = 'btnResetPrinterSettings';
const String btnDoManualCalibration = 'btnDoManualCalibration';
const String btnPrintConfigurationLabel = 'btnPrintConfigurationLabel';
const String btnRebootPrinter = 'btnRebootPrinter';
const String btnGetBondedDevices = 'btnGetBondedDevices';
const String btnDiscoverPrinters = 'btnDiscoverPrinters';
const String btnPrintZplDataOverBluetooth = 'btnPrintZplDataOverBluetooth';
class MyApp extends StatefulWidget {
final Printer.ZSDK zsdk = Printer.ZSDK();
MyApp({super.key});
@override
State createState() => _MyAppState();
}
enum OperationStatus { SENDING, RECEIVING, SUCCESS, ERROR, NONE }
class _MyAppState extends State<MyApp> {
final addressIpController = TextEditingController(text: '10.0.0.120');
final addressPortController = TextEditingController();
final btMacAddressController = TextEditingController();
List<Map<String, String>> bondedDevices = [];
final pathController = TextEditingController();
final zplDataController = TextEditingController(
text: '^XA^FO17,16^GB379,371,8^FS^FT65,255^A0N,135,134^FDTEST^FS^XZ',
);
final widthController = TextEditingController();
final heightController = TextEditingController();
final dpiController = TextEditingController();
final darknessController = TextEditingController();
final printSpeedController = TextEditingController();
final tearOffController = TextEditingController();
final printWidthController = TextEditingController();
final labelLengthController = TextEditingController();
final labelLengthMaxController = TextEditingController();
final labelTopController = TextEditingController();
final leftPositionController = TextEditingController();
Printer.MediaType? selectedMediaType;
Printer.PrintMethod? selectedPrintMethod;
Printer.ZPLMode? selectedZPLMode;
Printer.PowerUpAction? selectedPowerUpAction;
Printer.HeadCloseAction? selectedHeadCloseAction;
Printer.PrintMode? selectedPrintMode;
Printer.ReprintMode? selectedReprintMode;
Printer.VirtualDevice? selectedVirtualDevice;
Printer.PrinterSettings? settings;
Printer.Orientation printerOrientation = Printer.Orientation.LANDSCAPE;
String? message;
String? statusMessage;
String? settingsMessage;
String? calibrationMessage;
OperationStatus printStatus = OperationStatus.NONE;
OperationStatus checkingStatus = OperationStatus.NONE;
OperationStatus settingsStatus = OperationStatus.NONE;
OperationStatus calibrationStatus = OperationStatus.NONE;
OperationStatus rebootingStatus = OperationStatus.NONE;
OperationStatus btStatus = OperationStatus.NONE;
String? btMessage;
String? filePath;
String? zplData;
Future<bool> _requestBluetoothPermissions() async {
// On iOS, Bluetooth access is governed by CoreBluetooth — it is NOT a
// runtime permission that can be requested via permission_handler.
// The system dialog is shown automatically by the OS the first time the
// native SDK opens a CBCentralManager session (i.e. when a Bluetooth
// operation is actually attempted). Calling Permission.bluetoothConnect
// / bluetoothScan.request() on iOS always returns permanentlyDenied
// because those Android-style runtime permissions simply don't exist on
// iOS. We therefore skip the check on iOS and let the native layer
// handle the prompt.
if (Platform.isIOS) {
return true;
}
// Android — request the runtime Bluetooth permissions introduced in API 31.
var btConnect = await Permission.bluetoothConnect.request();
var btScan = await Permission.bluetoothScan.request();
if (btConnect.isGranted && btScan.isGranted) {
return true;
}
if (btConnect.isPermanentlyDenied || btScan.isPermanentlyDenied) {
if (mounted) {
showDialog(
context: context,
builder: (BuildContext context) => AlertDialog(
title: const Text('Bluetooth Permissions Required'),
content: const Text(
'Bluetooth permissions are required to connect to Zebra printers. '
'Please enable them in your app settings.',
),
actions: [
TextButton(
onPressed: () => Navigator.of(context).pop(),
child: const Text('Cancel'),
),
TextButton(
onPressed: () {
openAppSettings();
Navigator.of(context).pop();
},
child: const Text('Open Settings'),
),
],
),
);
}
}
return false;
}
@override
void initState() {
super.initState();
}
String getName<T>(T value) {
String name = 'Unknown';
if (value is Printer.HeadCloseAction) name = value.name;
if (value is Printer.MediaType) name = value.name;
if (value is Printer.PowerUpAction) name = value.name;
if (value is Printer.PrintMethod) name = value.name;
if (value is Printer.PrintMode) name = value.name;
if (value is Printer.ReprintMode) name = value.name;
if (value is Printer.VirtualDevice) name = value.name;
if (value is Printer.ZPLMode) name = value.name;
return name;
}
List<DropdownMenuItem<T>> generateDropdownItems<T>(List<T> values) {
List<DropdownMenuItem<T>> items = [];
for (var value in values) {
items.add(DropdownMenuItem<T>(value: value, child: Text(getName(value))));
}
return items;
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.grey.shade300,
appBar: AppBar(title: const Text('Zebra SDK Plugin example app')),
body: Container(
padding: const EdgeInsets.all(8),
child: Scrollbar(
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Text(
'Print file over TCP/IP',
style: TextStyle(fontSize: 18),
),
const Divider(color: Colors.transparent),
Card(
elevation: 4,
margin: const EdgeInsets.all(8),
child: Container(
padding: const EdgeInsets.all(8),
child: Column(
children: <Widget>[
const Text(
'File to print',
style: TextStyle(fontSize: 16),
),
TextField(
controller: pathController,
decoration: const InputDecoration(
labelText: 'File path',
),
),
const Divider(color: Colors.transparent),
Row(
children: <Widget>[
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.green,
foregroundColor: Colors.white,
),
onPressed: () async {
try {
FilePickerResult? result = await FilePicker
.platform
.pickFiles(type: FileType.any);
if (result != null) {
filePath = result.files.single.path;
if (filePath != null) {
setState(() {
pathController.text = filePath ?? '';
});
}
}
} catch (e) {
showSnackBar(e.toString());
}
},
child: Text(
'Pick .zpl file'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
const VerticalDivider(color: Colors.transparent),
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.lightGreen,
foregroundColor: Colors.white,
),
onPressed: () async {
try {
FilePickerResult? result = await FilePicker
.platform
.pickFiles(type: FileType.any);
if (result != null) {
filePath = result.files.single.path;
if (filePath != null) {
setState(() {
pathController.text = filePath ?? '';
});
}
}
} catch (e) {
showSnackBar(e.toString());
}
},
child: Text(
'Pick .pdf file'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
],
),
],
),
),
),
const SizedBox(height: 16),
Card(
elevation: 4,
margin: const EdgeInsets.all(8),
child: Container(
padding: const EdgeInsets.all(8),
child: Column(
children: <Widget>[
const Text(
'ZPL data to print',
style: TextStyle(fontSize: 16),
),
TextField(
controller: zplDataController,
decoration: const InputDecoration(
labelText: 'ZPL data',
),
maxLines: 5,
),
],
),
),
),
Card(
elevation: 4,
margin: const EdgeInsets.all(8),
child: Container(
padding: const EdgeInsets.all(8),
child: Column(
children: <Widget>[
const Text(
'Printer address',
style: TextStyle(fontSize: 16),
),
TextField(
controller: addressIpController,
decoration: const InputDecoration(
labelText: 'Printer IP address',
),
),
TextField(
controller: addressPortController,
decoration: const InputDecoration(
labelText: 'Printer port (defaults to 9100)',
),
),
const SizedBox(height: 16),
Visibility(
visible:
checkingStatus != OperationStatus.NONE ||
rebootingStatus != OperationStatus.NONE,
child: Column(
children: <Widget>[
Text(
'$statusMessage',
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color: getOperationStatusColor(
checkingStatus != OperationStatus.NONE
? checkingStatus
: rebootingStatus,
),
),
),
const SizedBox(height: 16),
],
),
),
Row(
children: <Widget>[
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.orange,
foregroundColor: Colors.white,
),
onPressed:
checkingStatus == OperationStatus.RECEIVING
? null
: () => onClick(btnCheckPrinterStatus),
child: Text(
'Check printer status'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
const SizedBox(width: 8),
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.red,
foregroundColor: Colors.white,
),
onPressed:
checkingStatus == OperationStatus.SENDING
? null
: () => onClick(btnRebootPrinter),
child: Text(
'Reboot Printer'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
],
),
],
),
),
),
Card(
elevation: 4,
margin: const EdgeInsets.all(8),
child: Container(
padding: const EdgeInsets.all(8),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
const Center(
child: Text(
'Printer settings',
style: TextStyle(fontSize: 16),
),
),
const SizedBox(height: 16),
RichText(
text: TextSpan(
style: TextStyle(
color: Theme.of(
context,
).textTheme.titleLarge?.color,
),
children: [
const TextSpan(
text: 'Brand and model: ',
style: TextStyle(fontWeight: FontWeight.bold),
),
TextSpan(
text: settings?.printerModelName ?? 'Unknown',
),
],
),
),
const Divider(color: Colors.transparent, height: 4),
RichText(
text: TextSpan(
style: TextStyle(
color: Theme.of(
context,
).textTheme.titleLarge?.color,
),
children: [
const TextSpan(
text: 'Device friendly name: ',
style: TextStyle(fontWeight: FontWeight.bold),
),
TextSpan(
text: settings?.deviceFriendlyName ?? 'Unknown',
),
],
),
),
const Divider(color: Colors.transparent, height: 4),
RichText(
text: TextSpan(
style: TextStyle(
color: Theme.of(
context,
).textTheme.titleLarge?.color,
),
children: [
const TextSpan(
text: 'Firmware: ',
style: TextStyle(fontWeight: FontWeight.bold),
),
TextSpan(text: settings?.firmware ?? 'Unknown'),
],
),
),
const Divider(color: Colors.transparent, height: 4),
RichText(
text: TextSpan(
style: TextStyle(
color: Theme.of(
context,
).textTheme.titleLarge?.color,
),
children: [
const TextSpan(
text: 'Link-OS Version: ',
style: TextStyle(fontWeight: FontWeight.bold),
),
TextSpan(
text: settings?.linkOSVersion ?? 'Unknown',
),
],
),
),
const Divider(color: Colors.transparent, height: 4),
RichText(
text: TextSpan(
style: TextStyle(
color: Theme.of(
context,
).textTheme.titleLarge?.color,
),
children: [
const TextSpan(
text: 'Printer DPI: ',
style: TextStyle(fontWeight: FontWeight.bold),
),
TextSpan(text: settings?.printerDpi ?? 'Unknown'),
],
),
),
RichText(
text: TextSpan(
style: TextStyle(
color: Theme.of(
context,
).textTheme.titleLarge?.color,
),
children: [
const TextSpan(
text:
'Resolution in dots per millimeter (dpmm): ',
style: TextStyle(fontWeight: FontWeight.bold),
),
TextSpan(
text:
settings?.devicePrintHeadResolution != null
? "${double.tryParse(settings?.devicePrintHeadResolution ?? '')?.truncate()}dpmm"
: 'Unknown',
),
],
),
),
TextField(
controller: darknessController,
keyboardType: const TextInputType.numberWithOptions(
signed: true,
decimal: true,
),
textInputAction: TextInputAction.done,
decoration: const InputDecoration(
labelText: 'Darkness',
),
),
TextField(
controller: printSpeedController,
keyboardType: const TextInputType.numberWithOptions(
signed: false,
decimal: false,
),
textInputAction: TextInputAction.done,
decoration: const InputDecoration(
labelText: 'Print speed',
),
),
TextField(
controller: tearOffController,
keyboardType: const TextInputType.numberWithOptions(
signed: true,
decimal: false,
),
textInputAction: TextInputAction.done,
decoration: const InputDecoration(
labelText: 'Tear off',
),
),
DropdownButtonFormField<Printer.MediaType>(
items: generateDropdownItems(
Printer.MediaType.values,
),
initialValue: selectedMediaType,
onChanged: (value) =>
setState(() => selectedMediaType = value),
decoration: const InputDecoration(
labelText: 'Media type',
),
),
DropdownButtonFormField<Printer.PrintMethod>(
items: generateDropdownItems(
Printer.PrintMethod.values,
),
initialValue: selectedPrintMethod,
onChanged: (value) =>
setState(() => selectedPrintMethod = value),
decoration: const InputDecoration(
labelText: 'Print method',
),
),
TextField(
controller: printWidthController,
keyboardType: const TextInputType.numberWithOptions(
signed: false,
decimal: false,
),
textInputAction: TextInputAction.done,
decoration: const InputDecoration(
labelText: 'Print width',
),
),
TextField(
controller: labelLengthController,
keyboardType: const TextInputType.numberWithOptions(
signed: false,
decimal: false,
),
textInputAction: TextInputAction.done,
decoration: const InputDecoration(
labelText: 'Label length',
),
),
TextField(
controller: labelLengthMaxController,
keyboardType: const TextInputType.numberWithOptions(
signed: false,
decimal: true,
),
textInputAction: TextInputAction.done,
decoration: const InputDecoration(
labelText: 'Label length max',
),
),
DropdownButtonFormField<Printer.ZPLMode>(
items: generateDropdownItems(Printer.ZPLMode.values),
initialValue: selectedZPLMode,
onChanged: (value) =>
setState(() => selectedZPLMode = value),
decoration: const InputDecoration(
labelText: 'ZPL mode',
),
),
DropdownButtonFormField<Printer.PowerUpAction>(
items: generateDropdownItems(
Printer.PowerUpAction.values,
),
initialValue: selectedPowerUpAction,
onChanged: (value) =>
setState(() => selectedPowerUpAction = value),
decoration: const InputDecoration(
labelText: 'Power up action',
),
),
DropdownButtonFormField<Printer.HeadCloseAction>(
items: generateDropdownItems(
Printer.HeadCloseAction.values,
),
initialValue: selectedHeadCloseAction,
onChanged: (value) =>
setState(() => selectedHeadCloseAction = value),
decoration: const InputDecoration(
labelText: 'Head close action',
),
),
TextField(
controller: labelTopController,
keyboardType: const TextInputType.numberWithOptions(
signed: true,
decimal: false,
),
textInputAction: TextInputAction.done,
decoration: const InputDecoration(
labelText: 'Label top',
),
),
TextField(
controller: leftPositionController,
keyboardType: const TextInputType.numberWithOptions(
signed: true,
decimal: false,
),
textInputAction: TextInputAction.done,
decoration: const InputDecoration(
labelText: 'Left position',
),
),
DropdownButtonFormField<Printer.PrintMode>(
items: generateDropdownItems(
Printer.PrintMode.values,
),
initialValue: selectedPrintMode,
onChanged: (value) =>
setState(() => selectedPrintMode = value),
decoration: const InputDecoration(
labelText: 'Print mode',
),
),
DropdownButtonFormField<Printer.ReprintMode>(
items: generateDropdownItems(
Printer.ReprintMode.values,
),
initialValue: selectedReprintMode,
onChanged: (value) =>
setState(() => selectedReprintMode = value),
decoration: const InputDecoration(
labelText: 'Reprint mode',
),
),
DropdownButtonFormField<Printer.VirtualDevice>(
items: generateDropdownItems(
Printer.VirtualDevice.values,
),
initialValue: selectedVirtualDevice,
onChanged: (value) =>
setState(() => selectedVirtualDevice = value),
decoration: const InputDecoration(
labelText: 'Virtual device',
),
),
const SizedBox(height: 16),
Visibility(
visible: settingsStatus != OperationStatus.NONE,
child: Column(
children: <Widget>[
Text(
'$settingsMessage',
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color: getOperationStatusColor(
settingsStatus,
),
),
),
const SizedBox(height: 16),
],
),
),
Row(
children: <Widget>[
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.deepPurple,
foregroundColor: Colors.white,
),
onPressed:
settingsStatus == OperationStatus.SENDING ||
settingsStatus ==
OperationStatus.RECEIVING
? null
: () => onClick(btnSetPrinterSettings),
child: Text(
'Set settings'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
const VerticalDivider(color: Colors.transparent),
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.purple,
foregroundColor: Colors.white,
),
onPressed:
settingsStatus == OperationStatus.SENDING ||
settingsStatus ==
OperationStatus.RECEIVING
? null
: () => onClick(btnGetPrinterSettings),
child: Text(
'Get settings'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
],
),
Row(
children: <Widget>[
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.pink,
foregroundColor: Colors.white,
),
onPressed:
settingsStatus == OperationStatus.SENDING ||
settingsStatus ==
OperationStatus.RECEIVING
? null
: () => onClick(btnResetPrinterSettings),
child: Text(
'Reset settings'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
],
),
],
),
),
),
Card(
elevation: 4,
margin: const EdgeInsets.all(8),
child: Container(
padding: const EdgeInsets.all(8),
child: Column(
children: <Widget>[
const Text(
'Printer calibration',
style: TextStyle(fontSize: 16),
),
const SizedBox(height: 16),
Visibility(
visible: calibrationStatus != OperationStatus.NONE,
child: Column(
children: <Widget>[
Text(
'$calibrationMessage',
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color: getOperationStatusColor(
calibrationStatus,
),
),
),
const SizedBox(height: 16),
],
),
),
Row(
children: <Widget>[
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.blueGrey,
foregroundColor: Colors.white,
),
onPressed:
calibrationStatus == OperationStatus.SENDING
? null
: () => onClick(btnDoManualCalibration),
child: Text(
'DO MANUAL CALIBRATION'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
],
),
],
),
),
),
Card(
elevation: 4,
margin: const EdgeInsets.all(8),
child: Container(
padding: const EdgeInsets.all(8),
child: Column(
children: <Widget>[
const Text(
'PDF print configurations',
style: TextStyle(fontSize: 16),
),
TextField(
controller: widthController,
keyboardType: const TextInputType.numberWithOptions(
decimal: true,
),
decoration: const InputDecoration(
labelText:
'Paper width in cm (defaults to 15.20 cm)',
),
),
TextField(
controller: heightController,
keyboardType: const TextInputType.numberWithOptions(
decimal: true,
),
decoration: const InputDecoration(
labelText:
'Paper height in cm (defaults to 7.00 cm)',
),
),
TextField(
controller: dpiController,
keyboardType: const TextInputType.numberWithOptions(
decimal: true,
),
decoration: const InputDecoration(
labelText:
'Printer density per inch (defaults to 203 dpi)',
),
),
DropdownButtonFormField<Printer.Orientation>(
items: const [
DropdownMenuItem(
value: Printer.Orientation.PORTRAIT,
child: Text('Portrait'),
),
DropdownMenuItem(
value: Printer.Orientation.LANDSCAPE,
child: Text('Landscape'),
),
],
initialValue: printerOrientation,
onChanged: (value) => setState(
() => printerOrientation =
value ?? Printer.Orientation.LANDSCAPE,
),
decoration: const InputDecoration(
labelText: 'Print orientation',
),
),
],
),
),
),
const SizedBox(height: 16),
Visibility(
visible: printStatus != OperationStatus.NONE,
child: Column(
children: <Widget>[
Text(
'$message',
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color: getOperationStatusColor(printStatus),
),
),
const SizedBox(height: 16),
],
),
),
ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.cyan,
foregroundColor: Colors.white,
),
onPressed: printStatus == OperationStatus.SENDING
? null
: () => onClick(btnPrintConfigurationLabel),
child: Text(
'Test Print'.toUpperCase(),
textAlign: TextAlign.center,
),
),
Row(
children: <Widget>[
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.blueAccent,
foregroundColor: Colors.white,
),
onPressed: printStatus == OperationStatus.SENDING
? null
: () => onClick(btnPrintZplFileOverTCPIP),
child: Text(
'Print zpl from file'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
const VerticalDivider(color: Colors.transparent),
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.lightBlue,
foregroundColor: Colors.white,
),
onPressed: printStatus == OperationStatus.SENDING
? null
: () => onClick(btnPrintPdfFileOverTCPIP),
child: Text(
'Print pdf from file'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
],
),
ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.blueAccent,
foregroundColor: Colors.white,
),
onPressed: printStatus == OperationStatus.SENDING
? null
: () => onClick(btnPrintZplDataOverTCPIP),
child: Text(
'Print zpl data'.toUpperCase(),
textAlign: TextAlign.center,
),
),
const SizedBox(height: 32),
const Text('Bluetooth', style: TextStyle(fontSize: 18)),
const Divider(color: Colors.transparent),
Card(
elevation: 4,
margin: const EdgeInsets.all(8),
child: Container(
padding: const EdgeInsets.all(8),
child: Column(
children: <Widget>[
TextField(
controller: btMacAddressController,
decoration: const InputDecoration(
labelText: 'Printer MAC address',
),
),
const SizedBox(height: 8),
if (bondedDevices.isNotEmpty)
DropdownButtonFormField<String>(
decoration: const InputDecoration(
labelText: 'Select bonded device',
),
items: bondedDevices
.map(
(d) => DropdownMenuItem(
value: d['address'],
child: Text(
"${d['name']} (${d['address']})",
),
),
)
.toList(),
onChanged: (value) {
if (value != null) {
setState(() {
btMacAddressController.text = value;
});
}
},
),
const SizedBox(height: 16),
Visibility(
visible: btStatus != OperationStatus.NONE,
child: Column(
children: <Widget>[
Text(
'$btMessage',
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
color: getOperationStatusColor(btStatus),
),
),
const SizedBox(height: 16),
],
),
),
Row(
children: <Widget>[
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.indigo,
foregroundColor: Colors.white,
),
onPressed: () => onClick(btnGetBondedDevices),
child: Text(
'Bonded'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
const SizedBox(width: 8),
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.deepOrange,
foregroundColor: Colors.white,
),
onPressed: btStatus == OperationStatus.RECEIVING
? null
: () => onClick(btnDiscoverPrinters),
child: Text(
"${"Scan".toUpperCase()}\nOnly on Android",
textAlign: TextAlign.center,
),
),
),
],
),
const SizedBox(height: 8),
Row(
children: <Widget>[
Expanded(
child: ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.teal,
foregroundColor: Colors.white,
),
onPressed: btStatus == OperationStatus.SENDING
? null
: () =>
onClick(btnPrintZplDataOverBluetooth),
child: Text(
'Print ZPL over Bluetooth'.toUpperCase(),
textAlign: TextAlign.center,
),
),
),
],
),
],
),
),
),
const SizedBox(height: 100),
],
),
),
),
),
);
}
Color getOperationStatusColor(OperationStatus status) {
switch (status) {
case OperationStatus.RECEIVING:
case OperationStatus.SENDING:
return Colors.blue;
case OperationStatus.SUCCESS:
return Colors.green;
case OperationStatus.ERROR:
return Colors.red;
default:
return Colors.black;
}
}
void updateSettings(Printer.PrinterSettings? newSettings) {
settings = newSettings;
darknessController.text = "${settings?.darkness ?? ""}";
printSpeedController.text = "${settings?.printSpeed ?? ""}";
tearOffController.text = "${settings?.tearOff ?? ""}";
printWidthController.text = "${settings?.printWidth ?? ""}";
labelLengthController.text = "${settings?.labelLength ?? ""}";
labelLengthMaxController.text = "${settings?.labelLengthMax ?? ""}";
labelTopController.text = "${settings?.labelTop ?? ""}";
leftPositionController.text = "${settings?.leftPosition ?? ""}";
selectedMediaType = settings?.mediaType;
selectedPrintMethod = settings?.printMethod;
selectedZPLMode = settings?.zplMode;
selectedPowerUpAction = settings?.powerUpAction;
selectedHeadCloseAction = settings?.headCloseAction;
selectedPrintMode = settings?.printMode;
selectedReprintMode = settings?.reprintMode;
selectedVirtualDevice = settings?.virtualDevice;
}
void onClick(String id) async {
try {
switch (id) {
case btnDoManualCalibration:
setState(() {
calibrationMessage = 'Starting manual callibration...';
calibrationStatus = OperationStatus.SENDING;
});
widget.zsdk
.doManualCalibrationOverTCPIP(
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
)
.then(
(value) {
setState(() {
calibrationStatus = OperationStatus.SUCCESS;
calibrationMessage = '$value';
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
calibrationMessage =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause} \n'
'${printerResponse.settings?.toString()}';
} catch (e) {
print(e);
calibrationMessage = e.toString();
}
} on MissingPluginException catch (e) {
calibrationMessage = '${e.message}';
} catch (e) {
calibrationMessage = e.toString();
}
setState(() {
calibrationStatus = OperationStatus.ERROR;
});
},
);
break;
case btnGetPrinterSettings:
setState(() {
settingsMessage = 'Getting printer settings...';
settingsStatus = OperationStatus.RECEIVING;
});
widget.zsdk
.getPrinterSettingsOverTCPIP(
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
)
.then(
(value) {
setState(() {
settingsStatus = OperationStatus.SUCCESS;
settingsMessage = '$value';
updateSettings(
(Printer.PrinterResponse.fromMap(value)).settings,
);
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
settingsMessage =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause} \n'
'${printerResponse.settings?.toString()}';
} catch (e) {
print(e);
settingsMessage = e.toString();
}
} on MissingPluginException catch (e) {
settingsMessage = '${e.message}';
} catch (e) {
settingsMessage = e.toString();
}
setState(() {
settingsStatus = OperationStatus.ERROR;
});
},
);
break;
case btnSetPrinterSettings:
setState(() {
settingsMessage = 'Setting printer settings...';
settingsStatus = OperationStatus.SENDING;
});
widget.zsdk
.setPrinterSettingsOverTCPIP(
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
settings: Printer.PrinterSettings(
darkness: double.tryParse(darknessController.text),
printSpeed: double.tryParse(printSpeedController.text),
tearOff: int.tryParse(tearOffController.text),
mediaType: selectedMediaType,
printMethod: selectedPrintMethod,
printWidth: int.tryParse(printWidthController.text),
labelLength: int.tryParse(labelLengthController.text),
labelLengthMax: double.tryParse(
labelLengthMaxController.text,
),
zplMode: selectedZPLMode,
powerUpAction: selectedPowerUpAction,
headCloseAction: selectedHeadCloseAction,
labelTop: int.tryParse(labelTopController.text),
leftPosition: int.tryParse(leftPositionController.text),
printMode: selectedPrintMode,
reprintMode: selectedReprintMode,
virtualDevice: selectedVirtualDevice,
),
// settings: Printer.PrinterSettings(
// darkness: 10, //10
// printSpeed: 6, //6
// tearOff: 0,//0
// mediaType: Printer.MediaType.MARK, //MARK
// printMethod: Printer.PrintMethod.DIRECT_THERMAL, //DIRECT_THERMAL
// printWidth: 568,//600
// labelLength: 1202,//1202
// labelLengthMax: 39,//39
// zplMode: Printer.ZPLMode.ZPL_II,//ZPL II
// powerUpAction: Printer.PowerUpAction.NO_MOTION,//NO MOTION
// headCloseAction: Printer.HeadCloseAction.FEED,//FEED
// labelTop: 0,//0
// leftPosition: 0,//0
// printMode: Printer.PrintMode.TEAR_OFF,//TEAR_OFF
// reprintMode: Printer.ReprintMode.OFF,//OFF
// virtualDevice: selectedVirtualDevice,
// )
// settings: Printer.PrinterSettings(
// darkness: 30, //10
// printSpeed: 3, //6
// tearOff: 100,//0
// mediaType: Printer.MediaType.CONTINUOUS, //MARK
// printMethod: Printer.PrintMethod.THERMAL_TRANS, //DIRECT_THERMAL
// printWidth: 568,//600
// labelLength: 1000,//1202
// labelLengthMax: 30,//39
// zplMode: Printer.ZPLMode.ZPL,//ZPL II
// powerUpAction: Printer.PowerUpAction.FEED,//NO MOTION
// headCloseAction: Printer.HeadCloseAction.NO_MOTION,//FEED
// labelTop: 50,//0
// leftPosition: 100,//0
// printMode: Printer.PrintMode.CUTTER,//TEAR_OFF
// reprintMode: Printer.ReprintMode.ON,//OFF
// virtualDevice: selectedVirtualDevice,
// )
)
.then(
(value) {
setState(() {
settingsStatus = OperationStatus.SUCCESS;
settingsMessage = '$value';
updateSettings(
(Printer.PrinterResponse.fromMap(value)).settings,
);
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
settingsMessage =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause} \n'
'${printerResponse.settings?.toString()}';
} catch (e) {
print(e);
settingsMessage = e.toString();
}
} on MissingPluginException catch (e) {
settingsMessage = '${e.message}';
} catch (e) {
settingsMessage = e.toString();
}
setState(() {
settingsStatus = OperationStatus.ERROR;
});
},
);
break;
case btnResetPrinterSettings:
setState(() {
settingsMessage = 'Setting default settings...';
settingsStatus = OperationStatus.SENDING;
});
widget.zsdk
.setPrinterSettingsOverTCPIP(
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
settings: Printer.PrinterSettings.defaultSettings(),
)
.then(
(value) {
setState(() {
settingsStatus = OperationStatus.SUCCESS;
settingsMessage = '$value';
updateSettings(
(Printer.PrinterResponse.fromMap(value)).settings,
);
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
settingsMessage =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause} \n'
'${printerResponse.settings?.toString()}';
} catch (e) {
print(e);
settingsMessage = e.toString();
}
} on MissingPluginException catch (e) {
settingsMessage = '${e.message}';
} catch (e) {
settingsMessage = e.toString();
}
setState(() {
settingsStatus = OperationStatus.ERROR;
});
},
);
break;
case btnCheckPrinterStatus:
setState(() {
statusMessage = 'Checking printer status...';
checkingStatus = OperationStatus.RECEIVING;
});
widget.zsdk
.checkPrinterStatusOverTCPIP(
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
)
.then(
(value) {
setState(() {
checkingStatus = OperationStatus.SUCCESS;
Printer.PrinterResponse? printerResponse;
if (value != null) {
printerResponse = Printer.PrinterResponse.fromMap(value);
}
statusMessage =
'${printerResponse != null ? printerResponse.toMap() : value}';
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
statusMessage =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause}';
} catch (e) {
print(e);
statusMessage = e.toString();
}
} on MissingPluginException catch (e) {
statusMessage = '${e.message}';
} catch (e) {
statusMessage = e.toString();
}
setState(() {
checkingStatus = OperationStatus.ERROR;
});
},
);
break;
case btnRebootPrinter:
setState(() {
statusMessage = 'Rebooting printer...';
rebootingStatus = OperationStatus.SENDING;
});
widget.zsdk
.rebootPrinterOverTCPIP(
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
)
.then(
(value) {
setState(() {
rebootingStatus = OperationStatus.SUCCESS;
Printer.PrinterResponse? printerResponse;
if (value != null) {
printerResponse = Printer.PrinterResponse.fromMap(value);
}
statusMessage =
'${printerResponse != null ? printerResponse.toMap() : value}';
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
statusMessage =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause}';
} catch (e) {
print(e);
statusMessage = e.toString();
}
} on MissingPluginException catch (e) {
statusMessage = '${e.message}';
} catch (e) {
statusMessage = e.toString();
}
setState(() {
rebootingStatus = OperationStatus.ERROR;
});
},
);
break;
case btnPrintConfigurationLabel:
setState(() {
message = 'Print job started...';
printStatus = OperationStatus.SENDING;
});
widget.zsdk
.printConfigurationLabelOverTCPIP(
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
)
.then(
(value) {
setState(() {
printStatus = OperationStatus.SUCCESS;
message = '$value';
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
message =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause}';
} catch (e) {
print(e);
message = e.toString();
}
} on MissingPluginException catch (e) {
message = '${e.message}';
} catch (e) {
message = e.toString();
}
setState(() {
printStatus = OperationStatus.ERROR;
});
},
);
break;
case btnPrintPdfFileOverTCPIP:
if (!pathController.text.endsWith('.pdf')) {
throw Exception(
'Make sure you properly write the path or selected a proper pdf file',
);
}
setState(() {
message = 'Print job started...';
printStatus = OperationStatus.SENDING;
});
widget.zsdk
.printPdfFileOverTCPIP(
filePath: pathController.text,
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
printerConf: Printer.PrinterConf(
cmWidth: double.tryParse(widthController.text),
cmHeight: double.tryParse(heightController.text),
dpi: double.tryParse(dpiController.text),
orientation: printerOrientation,
),
)
.then(
(value) {
setState(() {
printStatus = OperationStatus.SUCCESS;
message = '$value';
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
message =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause}';
} catch (e) {
print(e);
message = e.toString();
}
} on MissingPluginException catch (e) {
message = '${e.message}';
} catch (e) {
message = e.toString();
}
setState(() {
printStatus = OperationStatus.ERROR;
});
},
);
break;
case btnPrintZplFileOverTCPIP:
if (filePath == null && !pathController.text.endsWith('.zpl')) {
throw Exception(
'Make sure you properly write the path or selected a proper zpl file',
);
}
File zplFile = File(filePath!);
if (await zplFile.exists()) {
zplData = await zplFile.readAsString();
}
if (zplData == null || zplData!.isEmpty) {
throw Exception(
'Make sure you properly write the path or selected a proper zpl file',
);
}
setState(() {
message = 'Print job started...';
printStatus = OperationStatus.SENDING;
});
widget.zsdk
.printZplDataOverTCPIP(
data: zplData!,
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
printerConf: Printer.PrinterConf(
cmWidth: double.tryParse(widthController.text),
cmHeight: double.tryParse(heightController.text),
dpi: double.tryParse(dpiController.text),
orientation: printerOrientation,
),
)
.then(
(value) {
setState(() {
printStatus = OperationStatus.SUCCESS;
message = '$value';
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
message =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause}';
} catch (e) {
print(e);
message = e.toString();
}
} on MissingPluginException catch (e) {
message = '${e.message}';
} catch (e) {
message = e.toString();
}
setState(() {
printStatus = OperationStatus.ERROR;
});
},
);
break;
case btnPrintZplDataOverTCPIP:
zplData = zplDataController.text;
if (zplData == null || zplData!.isEmpty) {
throw Exception("ZPL data can't be empty");
}
setState(() {
message = 'Print job started...';
printStatus = OperationStatus.SENDING;
});
widget.zsdk
.printZplDataOverTCPIP(
data: zplData!,
address: addressIpController.text,
port: int.tryParse(addressPortController.text),
printerConf: Printer.PrinterConf(
cmWidth: double.tryParse(widthController.text),
cmHeight: double.tryParse(heightController.text),
dpi: double.tryParse(dpiController.text),
orientation: printerOrientation,
),
)
.then(
(value) {
setState(() {
printStatus = OperationStatus.SUCCESS;
message = '$value';
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
message =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause}';
} catch (e) {
print(e);
message = e.toString();
}
} on MissingPluginException catch (e) {
message = '${e.message}';
} catch (e) {
message = e.toString();
}
setState(() {
printStatus = OperationStatus.ERROR;
});
},
);
break;
case btnGetBondedDevices:
setState(() {
btMessage = 'Requesting permissions...';
btStatus = OperationStatus.RECEIVING;
});
if (!await _requestBluetoothPermissions()) {
setState(() {
btStatus = OperationStatus.ERROR;
btMessage = 'Bluetooth permissions denied';
});
break;
}
setState(() {
btMessage = 'Getting bonded devices...';
});
widget.zsdk.getBondedDevices().then(
(devices) {
setState(() {
bondedDevices = devices;
btStatus = OperationStatus.SUCCESS;
btMessage = 'Found ${devices.length} bonded device(s)';
});
},
onError: (error, stacktrace) {
setState(() {
btStatus = OperationStatus.ERROR;
btMessage = error.toString();
});
},
);
break;
case btnDiscoverPrinters:
setState(() {
btMessage = 'Requesting permissions...';
btStatus = OperationStatus.RECEIVING;
});
if (!await _requestBluetoothPermissions()) {
setState(() {
btStatus = OperationStatus.ERROR;
btMessage = 'Bluetooth permissions denied';
});
break;
}
setState(() {
btMessage = 'Scanning for Zebra printers...';
});
widget.zsdk.discoverBluetoothPrinters().then(
(devices) {
setState(() {
bondedDevices = devices;
btStatus = OperationStatus.SUCCESS;
btMessage = 'Found ${devices.length} printer(s)';
});
},
onError: (error, stacktrace) {
setState(() {
btStatus = OperationStatus.ERROR;
btMessage = error.toString();
});
},
);
break;
case btnPrintZplDataOverBluetooth:
zplData = zplDataController.text;
if (zplData == null || zplData!.isEmpty) {
throw Exception("ZPL data can't be empty");
}
if (btMacAddressController.text.isEmpty) {
throw Exception("MAC address can't be empty");
}
setState(() {
btMessage = 'Print job started...';
btStatus = OperationStatus.SENDING;
});
widget.zsdk
.printZplDataOverBluetooth(
data: zplData!,
macAddress: btMacAddressController.text,
)
.then(
(value) {
setState(() {
btStatus = OperationStatus.SUCCESS;
btMessage = '$value';
});
},
onError: (error, stacktrace) {
try {
throw error;
} on PlatformException catch (e) {
Printer.PrinterResponse printerResponse;
try {
printerResponse = Printer.PrinterResponse.fromMap(
e.details,
);
btMessage =
'${printerResponse.message} ${printerResponse.errorCode} ${printerResponse.statusInfo.status} ${printerResponse.statusInfo.cause}';
} catch (e) {
print(e);
btMessage = e.toString();
}
} on MissingPluginException catch (e) {
btMessage = '${e.message}';
} catch (e) {
btMessage = e.toString();
}
setState(() {
btStatus = OperationStatus.ERROR;
});
},
);
break;
}
} catch (e) {
print(e);
showSnackBar(e.toString());
}
}
void showSnackBar(String message) {
ScaffoldMessenger.of(
context,
).showSnackBar(SnackBar(content: Text(message)));
}
}Metadata
43
likes
150
points
943
downloads
Publisher
Weekly Downloads
Metadata
A Flutter plugin for printers using Zebra Link OS, to allow ZPL and PDF priting over TCP/IP connections.
Repository (GitHub)
View/report issues
Topics
#zebra #thermal #ticket #printer
Documentation
License
BSD-3-Clause (license)
