``` open class BaseViewModel private val event = SingleLiveEvent lt Events gt val event LiveData lt Events gt = event sealed class Events data class ShowMessage val message String Events class LoginViewModel BaseViewModel object LoginSuccess Events Cannot access lt init gt it is private in Events This type is sealed so it can be inherited by only its own nested classes or objects ``` is there a way to achieve it somehow i m getting gt `Cannot access lt init gt it is private in Events This type is sealed so it can be inherited by only its own nested classes or objects `

open class BaseViewModel {
    private val _event = SingleLiveEvent<Events>()
    val event: LiveData<Events> = _event

    sealed class Events {
        data class ShowMessage(val message: String) : Events()
    }
}

class LoginViewModel : BaseViewModel() {

    object LoginSuccess : Events()
    //Cannot access '<init>': it is private in 'Events'.
    // This type is sealed, so it can be inherited by only its own nested classes or objects.
}

is there a way to achieve it somehow ? i'm getting ->

Cannot access '<init>': it is private in 'Events'.This type is sealed, so it can be inherited by only its own nested classes or objects.

Javier

07/25/2020, 8:57 AM

Use

protected

instead of

private

Joost Klitsie

07/25/2020, 10:04 AM

@Javier a sealed constructor is always private if I'm not wrong, so that will not work. @Kulwinder Singh I think the error tells you what to do: put the events next to each other in the same file/class, because now they are in nested classes. Also you can re-evaluate if you really need a sealed for this, would an interface not suffice?

Javier

07/25/2020, 10:05 AM

Ah, I didn't read the problem correctly. I thought he can't access to the mutableLiveData

You can't extend a sealed class outside the same file. I think it will be possible in future kotlin version.

https://github.com/Kotlin/KEEP/blob/master/proposals/sealed-class-inheritance.md

Elmira Asadzadeh

07/26/2020, 3:31 AM

open class BaseViewModel {
    private val _event = SingleLiveEvent<Events>()
    val event: LiveData<Events> = _event
    sealed class Events {
        data class ShowMessage(val message: String) : Events()
        object LoginSuccess : Events()
    }
}
class LoginViewModel : BaseViewModel() {
   val loginSuccess = Events.LoginSuccess
// can be either showMessage or loginSuccess 
   lateinit var eventType: Events
}

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