sunmi_task_printer

Important

THIS PACKAGE WILL WORK ONLY IN ANDROID!

It supports Sunmi and Null Safety. I developed this Flutter plugin based on the following: Official Sunmi Inner Printer Doc. However, not all methods from the documentation were included in this package because I don't have access to the equipment. If you have the equipment and can assist, please contact me on GitHub!

Installation

flutter pub add sunmi_task_printer

What this package does

• Write text (with or without style)
• Change font size
• Insert line breaks
• Draw horizontal lines
• Enable or disable bold mode
• Print various types of barcodes (see enum below)
• Print QR codes with custom width and error level
• Print images from assets or the web (example demonstrates both)
• Print rows like receipts with custom width and alignment
• Combine with existing ESC/POS code
• Cut paper - Dedicated method for cutting paper
• Get the printer's serial number
• Get the printer's version
• Get the paper size (0: 80mm, 1: 58mm)
• LCD: Print an image ytyng
• LCD: Print a string with multiple lines (double lines) Thanks to ytyng
• Open the cash drawer Thanks to ZheruiL
• Check if the cash drawer is connected
• Get the number of times the cash drawer was opened
• Implement device status listener (TODO: Add methods for managing device states via a listener)

Tested Devices

Sunmi V2 Pro
Sunmi T2 mini
Sunmi V2S

**You can also combine this package with the

package esc_pos_utils**

With this package, you can create custom ESC/POS commands, eliminating the need for additional commands. This is beneficial if you already have code that is compatible with other printers, as you can reuse that code as well.

Just see the example folder!

// Import packages
import 'package:sunmi_task_printer/sunmi_task_printer.dart';

// All methods from Sunmi Task Printer do not require asynchronous calls.
SunmiTaskPrinter.bindingPrinter(); // The plugin handles asynchronous operations automatically.

Get device info

// No need to use async/await for these operations
SunmiTaskPrinter.paperSize().then((int size) {
  setState(() {
    paperSize = size;
  });
});

SunmiTaskPrinter.printerVersion().then((String version) {
  setState(() {
    printerVersion = version;
  });
});

SunmiTaskPrinter.serialNumber().then((String serial) {
  setState(() {
    serialNumber = serial;
  });
});

Inspiration

This package is a fork of sunmi_printer_plus.