RohitSurwase

sealed class MainViewEvent {
    data class NewsItemClicked(val newsItem: NewsItem) : MainViewEvent()
    object FabClicked : MainViewEvent()
    object OnSwipeRefresh : MainViewEvent()
    object FetchNews : MainViewEvent()
}

RohitSurwase

open class AacMviViewModelDH<STATE, EFFECT, EVENT>(application: Application, private val aacMviDH: AacMviDH<STATE, EFFECT>) :
    AndroidViewModel(application), ViewModelContract<EVENT> {

    fun viewStates(): LiveData<STATE> = aacMviDH.stateLiveData

    fun viewEffects(): LiveData<EFFECT> = aacMviDH.effectLiveData

    @CallSuper
    override fun process(viewEvent: EVENT) {
        Log.d(TAG, "processing viewEvent : $viewEvent")

RohitSurwase

open class AacMviDH<STATE, EFFECT> {

    private val _states: MutableLiveData<STATE> = MutableLiveData()
    val stateLiveData: LiveData<STATE>
        get() = _states

    private var _state: STATE? = null
    var state: STATE
        get() = _state
            ?: throw UninitializedPropertyAccessException("\"state\" was queried before being initialized")