flutter_thermal_printer 0.0.17

Plugin for Flutter to print on thermal printers via ESC/POS commands.

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');
    }
  }

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;

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/

Contributers