What's new in Mac Catalyst

2:26 - Push Button

let button = UIButton(type: .system)

2:29 - Toggle Button

let button = UIButton(type: .system)
button.changesSelectionAsPrimaryAction = true

2:40 - Pull-down Menu

let button = UIButton(type: .system)
button.menu = UIMenu()
button.showsMenuAsPrimaryAction = true

2:48 - Pop-up Button

let button = UIButton(type: .system)
button.menu = UIMenu()
button.showsMenuAsPrimaryAction = true
button.changesSelectionAsPrimaryAction = true

3:50 - UIToolTipInteraction

let toolTipInteraction = UIToolTipInteraction(defaultToolTip: string)
view.addInteraction(tooltipInteraction)

4:06 - UIControl ToopTip

control.toolTip = "Enable updates"

4:44 - ToolTips: UILabel

label.showsExpansionTextWhenTruncated = true

4:52 - Printing APIs

<key>UIApplicationSupportsPrintCommand</key>
</true>

5:44 - Print Support

func printContent(_ sender: Any?) {
    let printInteractionController = UIPrintInteractionController.shared
    ...
}

6:01 - Window Subtitle

scene.subtitle = "My subtitle"

7:34 - Behavioral Style

let button = UIButton(configuration: config)
button.preferredBehavioralStyle = .pad

7:43 - Window Tab Opt-Out

<key>UIApplicationSceneManifest</key>
	<dict>
		<key>UIApplicationSupportsMultipleScenes</key>
		<true/>
		<key>UIApplicationSupportsTabbedSceneCollection</key>
		<false/>
	</dict>

8:23 - UIPointerShape

UIPointerShape.beam(preferredLength:0 axis: .horizontal)
UIPointerShape.beam(preferredLength:0 axis: .vertical)

8:33 - Hidden Cursor

UIPointerStyle.hidden

13:25 - Scene subtitles

let subtitle: String = "..."
let scene: UIScene = ...
scene.subtitle = subtitle

14:54 - ToolTips

// ToolTip Interaction
let imageView: UIImageView = UIImageView(frame: .zero)
let interaction = UIToolTipInteraction(defaultToolTip: "...")
imageView.addInteraction(interaction)

// ToolTips - Label Expansion Text
let label: UILabel = UILabel()
label.text = "..."
label.showsExpansionTextWhenTruncated = true

// ToolTips — On UIControls
let switchControl = UISwitch()
switchControl.toolTip = "..."

17:49 - Primary button

let submitButton = UIButton(type: .system)
submitButton.role = .primary
submitButton.setTitle("Submit", for: .normal)

18:06 - Toggle button with menu

// Toggle button with menu
let toggleButton = UIButton(configuration: .filled(), primaryAction: nil)
toggleButton.configuration?.title = "Points Multiplier"
toggleButton.changesSelectionAsPrimaryAction = true
toggleButton.menu = ...

// Elsewhere...
toggleButton.configuration?.baseBackgroundColor = .systemRed

19:09 - Plain, destructive button

let resetButton = UIButton(configuration: .plain(), primaryAction: nil)
resetButton.configuration?.title = "Reset"
resetButton.role = .destructive
resetButton.tintColor = .systemRed

19:36 - Pop-up button

let popup = UIButton(type: .system)
popup.changesSelectionAsPrimaryAction = true
popup.showsMenuAsPrimaryAction = true
popup.menu = ...

21:01 - iPad behavioral style toggle

let button = UIButton(configuration: .filled(), primaryAction: nil)
button.configuration?.image = UIImage(systemName: "leaf")
button.preferredBehavioralStyle = .pad
button.configuration?.preferredSymbolConfigurationForImage =   
    UIImage.SymbolConfiguration(pointSize: 60)
button.changesSelectionAsPrimaryAction = true
button.configurationUpdateHandler = colorUpdateHandler

24:21 - Printing

override func printContent(_: Any?) {
    ...
}

override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
    if action == #selector(self.printContent(_:)) {
        ...
    } else {
        return super.canPerformAction(action, withSender: sender)
    }
}

override func target(forAction action: Selector, withSender sender: Any?) -> Any? {
    switch action {
    case #selector(UIResponder.printContent(_:)):
        ...
    default:
        return super.target(forAction: action, withSender: sender)
    }
}