Welcome to the documentation for QRCodeUIKit! This library provides easy-to-use UIKit components for generating and displaying QR codes in iOS applications.
Key Features
- Generate QR codes with customizable content and appearance.
- Display QR codes in a view or image format.
- Support for adding different error correction levels.
- Customize QR code size and module colors.
Installation
To get started with QRCodeUIKit, you can install it using CocoaPods or manually copying the source files into your project.
CocoaPods Installation
To install QRCodeUIKit using CocoaPods, simply add the following line to your Podfile:
pod 'QRCodeUIKit'
Manual Installation
- Download the source files from the GitHub repository.
- Drag and drop the source files folder into your Xcode project.
- Ensure that the necessary files are included in your target.
Getting Started
Once you have installed QRCodeUIKit, you can follow these steps to start generating and displaying QR codes:
Importing
import QRCodeUIKit
Generating A QR Code
You can generate a QR code by providing the desired content and any optional parameters. Here’s an example:
let qrCodeImage = QRCodeGenerator.generateQRCode(from: "Hello, World!")
Displaying A QR Code
To display a QR code, you can either use a QRCodeView
or convert it to a UIImage
for further usage. Here are the steps:
Using QRCodeView
Add a QRCodeView
to your storyboard or create it programmatically, then set the qrCodeImage
property:
let qrCodeView = QRCodeView()
qrCodeView.qrCodeImage = qrCodeImage
Converting To UIImage
Convert the qrCodeImage
to a UIImage
to use it in other parts of your application:
let qrCodeUIImage = UIImage(qrCodeImage)
Configuration Options
QRCodeUIKit provides various configuration options to customize the appearance of generated QR codes:
Changing QR Code Content
To change the content of a QR code, simply update the value of the content
property:
qrCodeView.content = "Updated content"
Customizing Appearance
You can customize the appearance of a QR code by modifying the following properties:
foregroundColor
: The color of the black modules in the QR code.backgroundColor
: The color of the white modules in the QR code.size
: The size (width and height) of the QR code.
Here’s an example of customizing the appearance:
qrCodeView.foregroundColor = .red
qrCodeView.backgroundColor = .white
qrCodeView.size = CGSize(width: 200, height: 200)
Error Correction Levels
QRCodeUIKit provides support for different error correction levels in QR codes. The error correction level determines the amount of data that can be recovered if the QR code is damaged or partially obscured.
Available error correction levels:
low
: Up to 7% error correction.medium
: Up to 15% error correction (default).quartile
: Up to 25% error correction.high
: Up to 30% error correction.
To change the error correction level, update the value of the errorCorrectionLevel
property:
qrCodeView.errorCorrectionLevel = .high
Congratulations! You have successfully learned how to generate and display QR codes using QRCodeUIKit. Feel free to explore the documentation further for additional features and advanced options. Happy coding!