Localization with SwiftUI

I have been performing a bit of localization lately on an Xcode project and was looking for a way to reduce human errors due to typos and other human errors.

The best method I found was to create a separate a simple Translation.swift file to storage all the i18n code. Here I extend the LocalizedStringKey struct with my own project based localized strings for easy access on the Xcode autocomplete menu.

import SwiftUI

extension LocalizedStringKey {
    static var ourLocalizedProjectName: LocalizedStringKey {
        return "OurLocalizedProjectName"

struct Translation: View {
    var key: LocalizedStringKey

    var body: some View {

    init(_ key: LocalizedStringKey) {
        self.key = key

struct Translation_Previews: PreviewProvider {
    static var previews: some View {
            .environment(\.locale, .init(identifier: "en"))

And add to your Localizable.strings file, strings that correspond to the keys in the extension created earlier.

// Localized project strings
"OurLocalizedProjectName" = "Project Name";

Note, I don’t use the View anywhere in the project, other than to use it for previews in Xcode. I usually populate the view with translations and adjust the locale environment variable to see the different project translations.

Happy translating and stay save in COVIDLand.

Jul 6, 2020 - Filed in: SwiftUI iOS macOS
Words: 200