Android data binding, Radio Button not updating

Question

I have some RadioButtons and I want them to be checked/unchecked as the model changes, using Data Binding.
I managed to set up an EditText and it is working fine.
Anyway, the RadioButtons behave as the android:checked property wouldn't be there.

<RadioButton 
    android:id="@+id/radio_kitchen"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/kitchen"
    android:checked="@{radiator.room==@string/kitchen?true:false}"
/>

Answer 1

This is what I am currently doing for this:

        <RadioButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="@{() -> car.setModel(@string/car_model_toyota)}"
        android:checked="@{car.model.equals(@string/car_model_toyota)}"
        android:text="@string/car_model_toyota"/>

It's cheating since I am kind of giving some code logic to the View... but at least I don't have to implement an onchange listener on every single radiogroup and I still get the binding to happen...

Unless someone correct me and gives me a more ethic and professional solution I think I am going to stick with this one.