2x screen SharedViewModel

CustomerDisplayViewModel.kt

class CustomerDisplayViewModel : ViewModel() {

    enum class CustomerDisplayState(val flipperViewIndex: Int) {
        DEFAULT(0), CART(1), CONFIRM_PRINT(2)
    }

    val stateLiveData = MutableLiveData<CustomerDisplayState>()

    val cartLiveData = MutableLiveData<OrderCartPresentationModel>()
    
    var confirmPrintReceiptListener: ConfirmPrintReceiptDialogFragment.ConfirmPrintReceiptListener? = null
    
    var isCustomerDisplayAvailable = false
    
    fun changeState(newState: CustomerDisplayState) {
        if(stateLiveData.value == newState){
            return
        }
        stateLiveData.postValue(newState)
    }
    [...]
}