Instance Method
localizedString(forCollatorIdentifier:)
iOS 8.0+
iPadOS 8.0+
Mac Catalyst 8.0+
macOS 10.10+
tvOS 9.0+
watchOS 2.0+
Returns a localized string for a specified ICU collator identifier.
func localizedString(forCollatorIdentifier collatorIdentifier: String) -> String?