Hey friends, is it possible to change the locale o...

# compose

[Sudarshan]

Hey friends, is it possible to change the locale of a Compose Multiplatform app in real-time across all platforms? For example, updating the app’s language instantly when the user selects their preferred language. If yes, could someone guide me on how to achieve this?

[Sudarshan]

How do I set up my Compose Multiplatform app so that the locale updates in real-time when the user selects a language? For example. I've this viewmodel which should be able to change the locale in real-time based on the events it received from the composable.

// Viewmodel

import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope
import compose.app.shared.util.LocaleManager
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.update
import kotlinx.coroutines.launch
import legalbot.user.onboarding.domain.model.language.Language
import legalbot.user.onboarding.domain.useCase.language.LanguageUseCase

internal class LanguagePageViewModel(
    private val languageUseCase: LanguageUseCase,
    private val localeManager: LocaleManager
) : ViewModel() {
    var uiState = MutableStateFlow(value = LanguagePageUiState())
        private set

    init {
        viewModelScope.launch {
            languageUseCase.getLanguages().collect { languages ->
                uiState.update { value ->
                    value.copy(languages = languages)
                }
            }
        }
    }

    fun updateSelectedLanguage(language: Language) {
        languageUseCase.updateSelectedLanguage(language = language)
        localeManager.setLocale(locale = language.locale)
    }
}

[Sudarshan]

// Locale manager class
@Suppress("EXPECT_ACTUAL_CLASSIFIERS_ARE_IN_BETA_WARNING")
expect class LocaleManager {
    fun setLocale(locale: String)
}

[Konstantin Tskhovrebov]

https://www.jetbrains.com/help/kotlin-multiplatform-dev/compose-resource-environment.html#locale

[Pavel Habžanský]

I believe the question is about remote handling of localization, for example if user changes locale on Android, he wants that same user to have changed localization on iOS too.

[Sudarshan]

No, it’s not about remote localization. It’s about making the UI automatically translate as the user selects their language, without needing to restart the app.

[Orlando]

this guide can help you:
https://medium.com/@dzenanbecirovicc/compose-multiplatform-localization-ec6745961ddc

[Nikola Hadzic]

Hi,
You can checkout our gradle plugin.
It has support for in app language changing and also for string templates, arrays and plurals.
https://github.com/hyperether/compose-multiplatform-localize