flutter_thermal_printer 0.0.20

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 printers with ease across multiple platforms.

Currently Supported

Service	Android	iOS	macOS	Windows
Bluetooth	✅	✅	✅	✅
USB	✅		✅	✅
BLE	✅	✅	✅	✅

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.
}

// Refer to Example for Complete code 

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Bluetooth Services

Feature	Android	iOS	macOS	Windows
Start scanning	✅	✅	✅	✅
Stop scanning	✅	✅	✅	✅
Connect printer	✅	✅	✅	✅
Disconnect printer	✅	✅	✅	✅
Print data	✅	✅	✅	✅
Print widget	✅	✅	✅	✅

---

USB Services

Feature	Android	iOS	macOS	Windows
Start scanning	✅		✅	✅
Stop scanning	✅			✅
Connect printer	✅			✅
Print data	✅			✅
Print widget	✅			✅

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Printer Model Class

String? address;
String? name;
ConnectionType? connectionType;
bool? isConnected;
String? vendorId;
String? productId;

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Additional Features

Screenshot to Printer

Easily capture and print widgets as images using the printWidget method.

Image Cropping for Long Prints

Handles long data by cropping images and printing them in chunks to ensure seamless printing on devices with limited buffer capacity.

Connection Type Validation

• Ensures ConnectionType compatibility and alerts when unsupported combinations are used.

BLE State Monitoring

Provides real-time monitoring for Bluetooth states, ensuring proactive error handling and reconnections.

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Notes and Recommendations

• Windows Users: Make sure you have the POS-X driver installed on Windows for printer compatibility.
  Download the driver from POS-X Drivers.

• Cross-Platform Usage: Ensure Bluetooth permissions and configurations are set correctly for Android and iOS.

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Contributing Guidelines

We welcome contributions to enhance the plugin's functionality!
To contribute, please fork the repository, make changes, and submit a pull request.
For bug reports or feature requests, feel free to open an issue.

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Contributors

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