ConsumableDetailViewModel.kt

package com.jephtecolin.kwii.ui.consumable_detail

import androidx.databinding.Bindable
import androidx.databinding.Observable
import androidx.databinding.ObservableDouble
import androidx.databinding.PropertyChangeRegistry
import androidx.lifecycle.LiveData
import androidx.lifecycle.MediatorLiveData
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import com.jephtecolin.kwii.util.ObservableViewModel
import com.jephtecolin.model.Consumable
import com.jephtecolin.model.Topping
import dagger.hilt.android.lifecycle.HiltViewModel
import javax.inject.Inject

@HiltViewModel
class ConsumableDetailViewModel @Inject constructor() : ObservableViewModel() {


    val topping = Topping("1", "Hot Cheese", 30.00)

    val consumable = Consumable(
            "1",
            "Griot de boeuf",
            "Food",
            250.00,
            "https://www.innovatorsmag.com/wp-content/uploads/2017/03/IF-Burger-1024x772.jpg",
            "Griot de boeuf en sauce, servis avec des bananes pese, des frites et du salade",
            "Boeuf, Banane, Choux, Radis",
    )

    var totalCost: ObservableDouble = ObservableDouble(0.0)
        @Bindable get() {
            return field
        }
        set(value) {
            totalCost.set(value.get())
            field = value
        }
}