Build multilingual-ready apps

3:18 - Specify textInputContextIdentifier

override var textInputContextIdentifier: String? {
    uniqueID
}

3:41 - Place a view directly above the keyboard

textView.inputAccessoryView = viewAboveKeyboard

4:00 - Use keyboardLayoutGuide to adapt to keyboard

view.keyboardLayoutGuide.topAnchor.constraint(equalToSystemSpacingBelow: textView.bottomAnchor, multiplier: 1.0).isActive = true

4:42 - Check for marked text before modifying

if textView.markedTextRange.empty {
    // Perform actions involving editing text
}

5:58 - Use localizedStandardRange when searching

let range = text.localizedStandardRange(of: search)

7:24 - Use color differences to highlight text

attributedString[range].foregroundColor = highlightColor

9:39 - Text Styles

// Text Styles

// SwiftUI
Text("Hello, world!") // uses .body Text Style by default
Text("Hello, world!").font(.title)

// UIKit
let label = UILabel()
label.text = "Hello, world!"
label.font = UIFont.preferredFont(forTextStyle: .body)

// AppKit
let textField = NSTextField(labelWithString: "Hello, world!")
textField.font = NSFont.preferredFont(forTextStyle: .body)

// Keep clipsToBounds off
clipsToBounds = false

10:03 - Typesetting language

// Typesetting language

// SwiftUI
Text(verbatim: "Hello, world!").typesettingLanguage(.init(languageCode: .english))

// UIKit
let label = UILabel()
label.text = "Hello, world!"
label.traitOverrides.typesettingLanguage = Locale.Language(languageCode: .english)

10:29 - Formatting names

// Formatting names

let nameComponents = PersonNameComponents
  (givenName: "瑗珺", familyName: "汪", nickname: "珺珺")

// Short Name (respects settings like “Prefer Nicknames”)
let shortName = 
 nameComponents.formatted(.name(style: .short)) // 珺珺

// Abbreviated Name (can be used for monograms)
let monogram = 
 nameComponents.formatted(.name(style: .abbreviated)) // 汪

12:20 - Examples of personalizing text

"^[Nuestro %@](inflect: true) está ^[hecho](agreeWithArgument: 1) de %@."
"अगर आप पहुँच नहीं ^[पाते हैं](inflect: true)"
"예: ‘^[%@을](inflect: true) 켤 때’"

13:43 - Format numbers using Text

Text("\(numberOfDays)-day forecast")

14:21 - Format numbers using AttributedString

AttributedString(localized: "10-day forecast")
AttributedString(localized: "0.5× zoom")

15:23 - Launch to your app’s settings

// Launch to your app’s settings
if let url =
URL(string: UIApplication.openSettingsURLString) {
   await UIApplication.shared.open(url)
}