QRCodeReader

A powerful Swift package that provides a simple and customizable QR code and barcode scanning experience using VisionKit framework.

• Supports QR code and barcode scanning.
• Provides an overlay with customizable color and corner styles.
• Configurable instruction text, padding, and window size for the scanner overlay.
• Simple integration with UIViewController.
• Uses Apple's VisionKit framework for accurate and high-performance scanning.

• iOS 16.0 or later
• Swift 5.7 or later
• UIKit and VisionKit frameworks

QRCodeReader can be added to your project using Swift Package Manager (SPM).

1. In Xcode, go to File > Add Packages....
2. Enter the package URL for the QRCodeReader repository.
3. Select the appropriate version and add the package to your target.

import QRCodeReader

Ensure the device supports and has access to the scanner.

let qrReader = QRCodeReader()

if qrReader.isScanningAvailable() {
    print("QR Scanner is available!")
} else {
    print("QR Scanner is not supported on this device.")
}

To present the scanner, call the presentScanner(from:completion:) method from any UIViewController. This method will display the QR code or barcode scanner view and pass the scanned code back through the completion handler.

Example:

let qrReader = QRCodeReader()

qrReader.presentScanner(from: self) { scannedCode in
    print("Scanned Code: \(scannedCode)")
}

The scanner appearance and behavior can be customized using the following properties:

• overlayColor: The color of the scanner overlay.
• cornerColor: The color of the scanner corners.
• instructionText: Instructional text displayed on the scanner.
• padding: Padding around the scanner frame.
• windowSize: Size of the scanner window.

Example:

qrReader.overlayColor = UIColor.black.withAlphaComponent(0.6)
qrReader.cornerColor = .systemBlue
qrReader.instructionText = "Place the QR code inside the frame"
qrReader.padding = 10
qrReader.windowSize = 300

QRCodeReader uses delegate methods to notify about scan completion or cancellation.

func qrScanner(didScanCode code: String) {
    print("Scanned QR/Barcode: \(code)")
}

func qrScannerDidCancel() {
    print("QR Scanner was cancelled.")
}