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Description:

flutter thermal printer

flutter_thermal_printer #
Package for all services for thermal printer in android, ios, macos, windows.
Getting Started #
This plugin is used to print data on thermal printer.
Currently Supported #

Service
Android
iOS
macOS
Windows

Bluetooth
✅
✅
✅
✅

USB
✅

✅
✅

final _flutterThermalPrinterPlugin = FlutterThermalPrinter.instance;

// Enum ConnectionType
enum ConnectionType {
BLE,
USB,
}

// Additional Functions
// Recommended Function for getting printers
getPrinters(
refreshDuration: Duration,
connectionTypes: List<ConnectionType>,
){
// Supports WINDOWS, ANDROID for USB
// MAC, IOS, ANDROID, WINDOWS for BLUETOOTH.
}

List<Printer> bleDevices = [];

StreamSubscription<List<Printer>>? _devicesStreamSubscription;

// Start scanning for BLE devices
Future<void> startScan() async {
try {
await _flutterThermalPrinterPlugin.startScan();
_devicesStreamSubscription =
_flutterThermalPrinterPlugin.devicesStream.listen((event) {
setState(() {
bleDevices = event.map((e) => Printer.fromJson(e.toJson())).toList();
bleDevices.removeWhere(
(element) => element.name == null || element.name!.isEmpty,
);
});
});
} catch (e) {
log('Failed to start scanning for devices $e');
}
}

// Stop scanning for BLE devices
Future<void> stopScan() async {
try {
_devicesStreamSubscription?.cancel();
await _flutterThermalPrinterPlugin.stopScan();
} catch (e) {
log('Failed to stop scanning for devices $e');
}
}

// Usb Devices List
Future<void> getUsbDevicesList() async {
try {
await _flutterThermalPrinterPlugin.getUsbDevices();
_devicesStreamSubscription?.cancel();
_devicesStreamSubscription =
_flutterThermalPrinterPlugin.devicesStream.listen((event) {
setState(() {
printers = event;
});
});
} catch (e) {
log('Failed to get usb devices list $e');
}
}
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Bluetooth Services #

Feature
Android
iOS
macOS
Windows

Start scanning
✅
✅
✅
✅

stop scanning
✅
✅
✅
✅

connect printer
✅
✅
✅
✅

disconnect printer
✅
✅
✅
✅

print data
✅
✅
✅
✅

USB Services #

Feature
Android
iOS
macOS
Windows

Start scanning
✅

✅
✅

stop scanning
✅

✅

connect printer
✅

✅

print data
✅

✅

Printer Model Class #
String? address;
String? name;
ConnectionType? connectionType;
bool? isConnected;
String? vendorId;
String? productId;

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Take Care OF #
Printers of Widows will only work if you have the POS-X driver installed on Windows.
Download Driver from Here:
https://pos-x.com/download/thermal-receipt-printer-driver-2/