Example of preferences module that I am using in project to inject preferences

PreferencesModule.kt

val preferencesModule = module {
    single { provideSettingsPreferences(androidApplication()) }
}

private const val PREFERENCES_FILE_KEY = "com.example.settings_preferences"

private fun provideSettingsPreferences(app: Application): SharedPreferences =
        app.getSharedPreferences(PREFERENCES_FILE_KEY, Context.MODE_PRIVATE)