UserViewModel.kt

@HiltViewModel
class UserViewModel @Inject constructor(
    application: Application,
    private val userRepository: UserRepository
) : AndroidViewModel(application) {

    /**
     * A [SharedPreferences] for storing user preferences.
     */
    private val userPreferences = application.getSharedPreferences(
        UserPreferences.NAME,
        Context.MODE_PRIVATE
    )

    // ...
    // OTHER CODE HERE
    // ...

    /**
     * Creates a new user with [name] and [email] and sets active session of that created user.
     */
    fun setUserSession(name: String, email: String) {
        viewModelScope.launch {
            val user = userRepository.add(name, email)
            
            withContext(Dispatchers.IO) {
                userPreferences.edit {
                    putInt(UserPreferences.Keys.ID, user.id)
                    putString(UserPreferences.Keys.NAME, user.name)
                    putString(UserPreferences.Keys.EMAIL, user.email)
                }
            }
            
            // Update LiveData/StateFlow/Rx or any other stream
        }
    }

    /**
     * Object holding user preference key details
     */
    private object UserPreferences {
        const val NAME = "user_pref"

        object Keys {
            const val ID = "user_id"
            const val NAME = "user_name"
            const val EMAIL = "user_email"
        }
    }
}