String(localized:) and NSLocalizedString Returns Wrong Value

[muhasturk]

Do you have any idea why the following codes are not working? You can reproduce on your example project by inserting below code snipped somewhere and you are going to see that the result string is based on device language not the set Locale.

Not Working 1

String(localized: "Hello")

Not Working 2

NSLocalizedString("Hello", comment: "")

Working

Text("Hello")

MainView.swift Reproduce

struct MainView: View {

    // MARK: - State properties

    @State private var isPresented = false

    // MARK: - body

    var body: some View {
        NavigationView {
            VStack {
                Image("logo")
                    .resizable()
                    .aspectRatio(contentMode: .fit)
                    .frame(width: 240, height: 100)
                Text("Hello")
                    .fontWeight(.bold)
                    .padding()
                Text("About")
                    .padding()
                Button("Change the language") {
                    isPresented = true
                }
            }
            .navigationTitle(String(localized: "Hello"))
        }
        .buttonStyle(AppButtonStyle())
        .fullScreenCover(isPresented: $isPresented) {
            LangaugeView()
        }
    }
}

[anilateapp]

Maybe this will help you

extension Bundle {
    private static var associatedLanguageKey = "AppLanguageKey"
    
    static var appLanguage: String {
        get {
            return UserDefaults.standard.string(forKey: associatedLanguageKey) ?? Locale.current.language.languageCode?.identifier ?? ""
        }
        set {
            guard let path = Bundle.main.path(forResource: newValue, ofType: "lproj"),
                  let newBundle = Bundle(path: path) else {
                return
            }
            
            object_setClass(Bundle.main, type(of: newBundle))
            UserDefaults.standard.set(newValue, forKey: associatedLanguageKey)
            UserDefaults.standard.synchronize()
        }
    }
}
struct CustomLanguage {
    static func bundle() -> Bundle {
        let selectedLanguage = Bundle.appLanguage
        let path = Bundle.main.path(forResource: selectedLanguage, ofType: "lproj")
        return Bundle(path: path!)!
    }
}

Use change

 withAnimation {
                                languageSettings.selectedLanguage = Bundle.appLanguage.hasPrefix("en") ? .ru : .en
                                Bundle.appLanguage = Bundle.appLanguage.hasPrefix("en") ? "ru" : "en"
                            }

String

`
NSLocalizedString("scanQR",bundle:CustomLanguage.bundle(), comment: "")

`

[maliknaqibullah]

I face the same issue and the above code did not work for me .@muhasturk did you found any solution