How do I use UIPasteboard's detectPatterns(for:completionHandler:)?

To use UIPasteboard's detectPatterns(for:completionHandler:), you can follow these steps:

1. Set Up the Request: Create a request to detect patterns in the pasteboard content.
2. Perform the Request: Use the detectPatterns(for:completionHandler:) method to perform the request.
3. Handle the Results: Process the results in the completion handler.

Here is a basic example in Swift:

import UIKit

let pasteboard = UIPasteboard.general
let patterns: [UIPasteboard.DetectionPattern] = [.number, .link]

pasteboard.detectPatterns(for: patterns) { detectedPatterns, error in
    if let error = error {
        print("Error detecting patterns: \(error)")
        return
    }
    
    if let detectedPatterns = detectedPatterns {
        for pattern in detectedPatterns {
            switch pattern {
            case .number:
                print("Number detected")
            case .link:
                print("Link detected")
            default:
                break
            }
        }
    }
}

In this example:

• UIPasteboard.general is used to access the general pasteboard.
• detectPatterns(for:completionHandler:) is called with an array of patterns to detect (e.g., .number, .link).
• The completion handler processes the detected patterns or handles any errors.

For more detailed information on using asynchronous APIs and handling completion handlers, you might find the session Go further with Swift Testing (24:51) useful, as it covers converting completion handlers to async/await syntax in Swift.