/starPOS-Flutter-Bluetooth-Printer

Primary LanguageJava

starPOS Bluetooth Printer

Getting Started

This project is a starting point for a ESC/POS Printer

How to install

  • Clone this project

  • Copy packages/flutter_starpos_printer in to your root project

  • Add to project dependencies like this

flutter_starpos_printer:
    path: 'packages/flutter_starpos_printer'
  • Run flutter pub get to install
flutter pub get

How to connect to starPOS bluetooth printer

  • Init and connect printer
PrinterController controller = PrinterController();
BluetoothDevice? printer;

Future<void> initStarPOSPrinter() async {
    await controller.initBluetoothPrinter(
      onSuccess: (device) {
        printer = device;
        setState(() {});
      },
      onFailure: (error) {
        print('--> error : ${error}');
      },
    );
  }
  • Call init in initState
@override
  void initState() {
    super.initState();

    initStarPOSPrinter();
  }
  • Basic command to get Bluetooth printer information
void check(){
    bool connected = printer.isConnected;
    String printerName = printer.platformName;
    String printerAddress = printer.remoteId.str;
}

COMMANDS

  • Print bitmap
/*
* @params imagePath: /assets/image/test.png
*/
Future<void> startPrinting(String imagePath) async {
    final ByteData byte = await rootBundle.load(imagePath);
    final Uint8List bytes = byte.buffer.asUint8List();
    // printer?.initPrinter(); // optional
    printer?.printRasterBitmap(bytes, 0);
    printer?.printNextLine(3);
}
  • Check BluetoothDevice for more supported commands