qr_code_tools

Package Overview

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qr_code_tools is a Flutter plugin designed for iOS and Android that enables QR code decoding within mobile applications. It provides a straightforward interface to scan and extract data from QR codes using the device's camera. The plugin is lightweight and optimized for performance, making it suitable for apps requiring quick and reliable QR code recognition. It supports both real-time scanning and image-based decoding, ensuring flexibility across different use cases. Built with simplicity in mind, it integrates seamlessly into Flutter projects.

Use cases

Mobile inventory tracking
Event ticket scanning
Contact sharing via QR
Digital payment initiation
Product information lookup

Key features

Real-time QR scanning
Image-based QR decoding
Cross-platform support (iOS & Android)
Simple API integration
Lightweight and fast performance

Suitable for

Retail and e-commerce apps
Event management tools
Logistics and asset tracking
Customer engagement platforms
Mobile payment systems

Considerations

Requires camera permissions on both platforms
May need additional UI for camera preview
Performance depends on device camera quality
Limited to QR code decoding (no generation)
No built-in error handling for malformed codes

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

QR Code Tools

The Flutter plugin for iOS and Android to decoding QR codes.

Installation

First, add qr_code_tools as a dependency in your pubspec.yaml file.

iOS

Add one rows to the ios/Runner/Info.plist:

one with the key Privacy - Photo Library Usage Description and a usage description.

Or in text format add the key:

<key>NSPhotoLibraryUsageDescription</key>
<string>Can I use the photo library please?</string>

Android

Nothing to do

Example

import 'package:qr_code_tools/qr_code_tools.dart';

String _data;

/// decode from local file
Future decode(String file) async {
  String data = await QrCodeToolsPlugin.decodeFrom(file);
  setState(() {
    _data = data;
  });
}

For a more elaborate usage example see here.

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