QR Code Generator

A Flutter package for generating dynamic QR codes with custom colors using CustomPainter.

Features

• Generate QR codes from any string data
• Customize dark and light colors
• Adjustable size
• Lightweight implementation using CustomPainter
• Built-in error handling

Installation

Add this to your package's pubspec.yaml file:

dependencies:
  qr_code_generator: ^1.0.0

Then run:

flutter pub get

Usage

Import the package:

import 'package:qr_code_generator/qr_code_generator.dart';

Basic Example

DynamicQrPainterWidget(
  data: 'https://example.com',
  size: 200,
)

Custom Colors

DynamicQrPainterWidget(
  data: 'Hello, World!',
  size: 250,
  darkColor: Colors.blue,
  lightColor: Colors.yellow,
)

Complete Example

import 'package:flutter/material.dart';
import 'package:dynamic_qr_code/dynamic_qr_code.dart';

class QrCodeScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('QR Code Generator'),
      ),
      body: Center(
        child: DynamicQrPainterWidget(
          data: 'https://flutter.dev',
          size: 300,
          darkColor: Colors.black,
          lightColor: Colors.white,
        ),
      ),
    );
  }
}

Parameters

Parameter	Type	Default	Description
data	String	required	The data to encode in the QR code
size	double	200	The size of the QR code (width and height)
darkColor	Color	Colors.black	Color for dark modules
lightColor	Color	Colors.white	Color for light modules/background

Dependencies

This package depends on:

• qr - For QR code generation

License

MIT License

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.