Unable to check if the device has printing capabilities or not

[Barzi-Yassin]

Flutter version:

macbookpro@macbookpros-MacBook-Pro myproject2-flutter-app % flutter --version
Flutter 3.35.6 • channel stable • https://github.com/flutter/flutter.git
Tools • Dart 3.9.2 • DevTools 2.48.0

pubspec.yaml

dependencies:
  sunmi_printer_plus: ^4.1.1

Tried:

await SunmiPrinter.initPrinter(); // deprecated
// and
final bool printerAvailable = await SunmiPrinter.bindingPrinter(); // deprecated, 
// both deprecated

i have this solution working, but want to find a way without using deprecated methods?

Future<void> printListImages(List<Uint8List> listImages) async {

  if (listImages.isEmpty) {
    Notify.showWarn(
      title: 'Printing Status',
      message: 'No receipt found to print.',
    );
    return;
  }

  try {
    // Try initializing printer — will fail gracefully if not a Sunmi device
    await SunmiPrinter.initPrinter();

    // If initialization succeeds, print images
    for (Uint8List image in listImages) {
      await SunmiPrinter.printImage(
        image,
        align: SunmiPrintAlign.CENTER,
      );
    }
    await SunmiPrinter.cutPaper();
  } on PlatformException catch (e) {
    // Handle non-Sunmi devices or uninitialized printer service
    if (e.message?.contains('sunmiPrinter has not been initialized') ?? false) {
      Notify.showWarn(
        title: 'Printing Status',
        message: 'No Sunmi printer detected on this device.',
      );
    } else {
      Notify.showError(
        title: 'Printing Error',
        message: 'Unable to print: ${e.message}',
      );
    }
  } catch (e) {
    // Catch-all for other unexpected errors
    Notify.showError(
      title: 'Printing Error',
      message: 'Unexpected error: $e',
    );
  }
}

[brasizza]

Hi @Barzi-Yassin , can you check the example at new version?

1 - when the package starts , it will bind already your printer, than you can use

https://github.com/brasizza/sunmi_printer/blob/version-4.0/example/lib/src/status_controller.dart

_printer.getStatus(); for example to get the status, but i made a class in example to find all status that you need.

2 - since the printer starts binding in you app (this is a thing that i can change in future) , you can rebind your printer following this example in the other controller
https://github.com/brasizza/sunmi_printer/blob/version-4.0/example/lib/src/printer_controller.dart

Feel free to reach me to solve other problemas that you have!