Working with Accessibility

let button = UIButton()
button.accessibilityLabel = "Save Changes"
button.accessibilityHint = "Taps to save the current changes"

button.accessibilityHint = "Taps the button to submit the form"

let button = UIButton()
button.accessibilityTraits = [.button, .allowsDirectInteraction]

let button = UIButton()
button.accessibilityLabel = "Submit Form"
button.accessibilityHint = "Taps to submit the form and navigate to next screen"
button.accessibilityValue = "Not submitted"
button.accessibilityTraits = .button

let slider = UISlider()
slider.accessibilityLabel = "Volume Control"
slider.accessibilityValue = "\(slider.value)%"
slider.accessibilityTraits = .adjustable

let group = UIView()
group.accessibilityGroup = true

let button1 = UIButton()
button1.accessibilityLabel = "Save"
button1.accessibilityHint = "Saves the document"

let button2 = UIButton()
button2.accessibilityLabel = "Cancel"
button2.accessibilityHint = "Cancels the current operation"

group.accessibilityElements = [button1, button2]

// In iOS Simulator, go to Settings > General > Accessibility > VoiceOver
// Toggle VoiceOver on to test accessibility features

let label = UILabel()
label.font = UIFont.preferredFont(forTextStyle: .title1)
label.adjustsFontForContentSizeCategory = true

let customFont = UIFont.systemFont(ofSize: 16)
let scaledFont = UIFontMetrics.default.scaledFont(for: customFont)
label.font = scaledFont

class CustomView: UIView {
    override func accessibilityPerformEscape() -> Bool {
        // Example: Close a modal view
        if let modalViewController = self.superview?.window?.rootViewController?.presentedViewController {
            modalViewController.dismiss(animated: true)
        }
        return true
    }

    override func accessibilityPerformMagicTap() -> Bool {
        // Example: Toggle a feature
        self.isAccessibilityElement = !self.isAccessibilityElement
        return true
    }
}

import UIKit

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Post a screen change notification
        NotificationCenter.default.post(name: UIAccessibilityScreenChangedNotification, object: nil)
    }
    
    @IBAction func announceButtonTapped(_ sender: UIButton) {
        // Announce a message to VoiceOver users
        UIAccessibility.post(notification: .announcement, argument: "Button was tapped successfully")
    }
}

import XCTest

class AccessibilityTests: XCTestCase {
    func testAccessibility() {
        let app = XCUIApplication()
        app.launch()
        
        // Check if elements are accessible
        XCTAssert(app.staticTexts["Welcome Message"].exists)
        
        // Verify accessibility labels
        XCTAssertEqual(app.staticTexts["Welcome Message"].label, "Welcome to our app")
    }
}

import UIKit

if UIAccessibility.reduceMotionEnabled {
    // Adjust animations or transitions to be less intense
    print("Reduce motion is enabled")
} else {
    // Use standard animations
    print("Reduce motion is disabled")
}