📱 QR Code Scanner & Generator

A modern, fast, and fully featured QR Code Scanner + QR Generator built using Flutter. Includes live camera scanning, gallery image scanning, QR generation, flash control, and more.

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🚀 Features

🔍 QR Code Scanner

• Real-time camera scanning using mobile_scanner
• MLKit-based QR detection from gallery images
• Smooth scanning animation & detection frame
• Duplicate scan prevention (no repeat results)
• Handles multiple barcode types (QR, EAN, UPC, etc.)
• Auto-pause when QR is detected & resume after closing dialog
• Flashlight toggle while scanning
• Camera lifecycle handling (pause/resume on app minimize)

🖼️ Scan From Gallery

• Pick an image from the gallery
• Extract QR code using Google ML Kit
• Error handling for invalid / unreadable images

✨ QR Code Generator

• Generate QR codes from text or URLs
• Beautiful, customizable QR display
• Save QR code as PNG
• Share QR image or text

🧭 Modern UI / UX

• Clean scanning frame with animated corners
• Selectable scanned text
• Copy-to-clipboard support
• Material 3 design with easy theming
• Snackbars for feedback (errors, success, copy action)

🔐 Permissions Handling

• Camera permission request using permission_handler
• Safe fallback UI if permission is denied

🛠️ Technologies Used

• Flutter (Material 3)
• mobile_scanner for camera scanning
• google_mlkit_barcode_scanning for image scanning
• image_picker for gallery images
• qr_flutter for QR generation
• permission_handler for permissions

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📦 Installation

Clone the repo:

git clone https://github.com/atomhudson/qr_code_generator.git
cd qr_code_generator

Install dependencies:

flutter pub get

Run the app:

flutter run

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📂 Project Structure

lib/
 ├── generate_qr/
 ├── scan_qr/
 ├── widgets/
 ├── main.dart

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▶️ Getting Started with Flutter

A few official resources to help you if you're new to Flutter:

• Lab: Write your first Flutter app
• Cookbook: Useful Flutter samples
• Flutter Official Docs

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