struct StringInterpolation Represents the contents of a string literal with interpolations while it’s being built, for use in creating a localized string key.
The string interpolation to use as the localization key.
Initializerinit(string
init(stringInterpolation:)
Creates a localized string key from the given string interpolation.
Availability 有効性
- iOS 13.0+
- iPadOS 13.0+
- macOS 10.15+
- Mac Catalyst 13.0+
- tvOS 13.0+
- watchOS 6.0+
Technology
- Swift
UI
Declaration 宣言
init(stringInterpolation: LocalizedStringKey .StringInterpolation )Parameters パラメータ
stringInterpolation
Discussion 議論
To create a localized string key from a string interpolation, use the \() string interpolation syntax. Swift matches the parameter types in the expression to one of the append methods in Localized. The interpolated types can include numeric values, Foundation types, and SwiftUI Text and Image instances.
The following example uses a string interpolation with two arguments: an unlabeled Date and a Text labeled style. The compiler maps these to the method append as it builds the string that it creates the Localized with.
let key = LocalizedStringKey("Date is \(company.foundedDate, style: .offset)")
let text = Text(key) // Text contains "Date is +45 years"You can write this example more concisely, implicitly creating a Localized as the parameter to the Text initializer:
let text = Text("Date is \(company.foundedDate, style: .offset)")