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Modernize SwitchControlViewController
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@NickEntin
NickEntin committed Aug 8, 2023
1 parent f58bdb0 commit c1feedd
Showing 1 changed file with 119 additions and 96 deletions.
215 changes: 119 additions & 96 deletions Example/AccessibilitySnapshot/SwitchControlViewController.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -19,112 +19,135 @@ import UIKit

final class SwitchControlViewController: AccessibilityViewController {

// MARK: - Private Properties
// MARK: - UIViewController

private let switchControls: [UISwitch] = (0..<8).map { _ in UISwitch() }
override func loadView() {
view = View()
}

/// UIView with the switch button trait that acts like a switch, but is not a UISwitch.
private let fakeSwitchView: UIView = .init()
}

/// UIView with the button and switch button traits that acts like a switch, but is not a UISwitch.
private let fakeSwitchButton: UIView = .init()
// MARK: -

private extension SwitchControlViewController {

final class View: UIView {

// MARK: - Life Cycle

override init(frame: CGRect) {
super.init(frame: frame)

switchControls[0].isOn = true

switchControls[1].isOn = false

switchControls[2].isOn = true
switchControls[2].accessibilityLabel = "Label"

switchControls[3].isOn = false
switchControls[3].accessibilityLabel = "Label"

switchControls[4].isOn = true
switchControls[4].accessibilityLabel = "Label"
switchControls[4].accessibilityValue = "Value"

switchControls[5].isOn = true
switchControls[5].accessibilityLabel = "Label"
switchControls[5].accessibilityValue = "Value"
switchControls[5].accessibilityHint = "Hint"

switchControls[6].isOn = false
switchControls[6].accessibilityLabel = "Label"
switchControls[6].accessibilityValue = "Value"
switchControls[6].accessibilityHint = "Hint"
switchControls[6].accessibilityTraits.insert([
.selected,
.button,
.header,
.link,
.adjustable,
.image,
.searchField,
])

switchControls[7].isOn = false
switchControls[7].accessibilityLabel = "Label"
switchControls[7].accessibilityValue = "Value"
switchControls[7].accessibilityHint = "Hint"
switchControls[7].accessibilityTraits.insert([
.selected,
.notEnabled,
.button,
.header,
.link,
.adjustable,
.image,
.searchField,
])

switchControls.forEach { addSubview($0) }

// Add a fake switch that has the switch button trait only, but is not a UISwitch.
fakeSwitchView.isAccessibilityElement = true
fakeSwitchView.accessibilityLabel = "Fake Label"
fakeSwitchView.accessibilityValue = "Value"
fakeSwitchView.accessibilityTraits.insert(UIAccessibilityTraits(rawValue: 0x0020000000000000))
fakeSwitchView.frame.size = .init(width: 48, height: 32)
fakeSwitchView.backgroundColor = .lightGray
fakeSwitchView.layer.cornerRadius = 16
addSubview(fakeSwitchView)

// Add a fake switch that has the switch button and button traits, but is not a UISwitch.
fakeSwitchButton.isAccessibilityElement = true
fakeSwitchButton.accessibilityLabel = "Fake Label"
fakeSwitchButton.accessibilityValue = "Value"
fakeSwitchButton.accessibilityTraits.insert(.button)
fakeSwitchButton.accessibilityTraits.insert(UIAccessibilityTraits(rawValue: 0x0020000000000000))
fakeSwitchButton.frame.size = .init(width: 48, height: 32)
fakeSwitchButton.backgroundColor = .lightGray
fakeSwitchButton.layer.cornerRadius = 16
addSubview(fakeSwitchButton)
}

// MARK: - UIViewController
@available(*, unavailable)
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}

override func viewDidLoad() {
super.viewDidLoad()

switchControls[0].isOn = true

switchControls[1].isOn = false

switchControls[2].isOn = true
switchControls[2].accessibilityLabel = "Label"

switchControls[3].isOn = false
switchControls[3].accessibilityLabel = "Label"

switchControls[4].isOn = true
switchControls[4].accessibilityLabel = "Label"
switchControls[4].accessibilityValue = "Value"

switchControls[5].isOn = true
switchControls[5].accessibilityLabel = "Label"
switchControls[5].accessibilityValue = "Value"
switchControls[5].accessibilityHint = "Hint"

switchControls[6].isOn = false
switchControls[6].accessibilityLabel = "Label"
switchControls[6].accessibilityValue = "Value"
switchControls[6].accessibilityHint = "Hint"
switchControls[6].accessibilityTraits.insert([
.selected,
.button,
.header,
.link,
.adjustable,
.image,
.searchField,
])

switchControls[7].isOn = false
switchControls[7].accessibilityLabel = "Label"
switchControls[7].accessibilityValue = "Value"
switchControls[7].accessibilityHint = "Hint"
switchControls[7].accessibilityTraits.insert([
.selected,
.notEnabled,
.button,
.header,
.link,
.adjustable,
.image,
.searchField,
])

switchControls.forEach { view.addSubview($0) }

// Add a fake switch that has the switch button trait only, but is not a UISwitch.
fakeSwitchView.isAccessibilityElement = true
fakeSwitchView.accessibilityLabel = "Fake Label"
fakeSwitchView.accessibilityValue = "Value"
fakeSwitchView.accessibilityTraits.insert(UIAccessibilityTraits(rawValue: 0x0020000000000000))
fakeSwitchView.frame.size = .init(width: 48, height: 32)
fakeSwitchView.backgroundColor = .lightGray
fakeSwitchView.layer.cornerRadius = 16
view.addSubview(fakeSwitchView)

// Add a fake switch that has the switch button and button traits, but is not a UISwitch.
fakeSwitchButton.isAccessibilityElement = true
fakeSwitchButton.accessibilityLabel = "Fake Label"
fakeSwitchButton.accessibilityValue = "Value"
fakeSwitchButton.accessibilityTraits.insert(.button)
fakeSwitchButton.accessibilityTraits.insert(UIAccessibilityTraits(rawValue: 0x0020000000000000))
fakeSwitchButton.frame.size = .init(width: 48, height: 32)
fakeSwitchButton.backgroundColor = .lightGray
fakeSwitchButton.layer.cornerRadius = 16
view.addSubview(fakeSwitchButton)
}
// MARK: - Private Properties

private let switchControls: [UISwitch] = (0..<8).map { _ in UISwitch() }

/// UIView with the switch button trait that acts like a switch, but is not a UISwitch.
private let fakeSwitchView: UIView = .init()

override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
/// UIView with the button and switch button traits that acts like a switch, but is not a UISwitch.
private let fakeSwitchButton: UIView = .init()

switchControls.forEach { $0.sizeToFit() }
// MARK: - UIView

let statusBarHeight = UIApplication.shared.statusBarFrame.height
override func layoutSubviews() {
switchControls.forEach { $0.sizeToFit() }

var distributionSpecifiers: [ViewDistributionSpecifying] = [ statusBarHeight.fixed, 1.flexible ]
for subview in switchControls {
distributionSpecifiers.append(subview)
distributionSpecifiers.append(1.flexible)
let statusBarHeight = window?.windowScene?.statusBarManager?.statusBarFrame.height ?? 0

var distributionSpecifiers: [ViewDistributionSpecifying] = [ statusBarHeight.fixed, 1.flexible ]
for subview in switchControls {
distributionSpecifiers.append(subview)
distributionSpecifiers.append(1.flexible)
}
distributionSpecifiers.append(
contentsOf: [
fakeSwitchView.distributionItem,
1.flexible,
fakeSwitchButton.distributionItem,
1.flexible,
]
)
applySubviewDistribution(distributionSpecifiers)
}
distributionSpecifiers.append(contentsOf: [
fakeSwitchView.distributionItem,
1.flexible,
fakeSwitchButton.distributionItem,
1.flexible,
])
view.applySubviewDistribution(distributionSpecifiers)

}

}

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