Android Test

You want to use the MVVM architecture pattern in your application. You are using Data Binding and ViewModel architecture components.

You have the field "favorite" in your ViewModel class provided with required getters and setters. You would like to implement two-way data binding; avoid calling the ViewModel method onFavoriteChanged() when the checked status changes in the UI.

You have prepared the ViewModel class for two-way data binding for the "favorite" field and provided your ViewModel instance to data binding in the layout.

How should you bind your ViewModel to the UI such that two-way data binding would work?

Options

• &lt;CheckBox<br />&nbsp;&nbsp;&nbsp;&nbsp;android:id=&quot;@+id/favoriteCheckBox&quot;<br />&nbsp;&nbsp;&nbsp;&nbsp;android:checked=&quot;@={viewmodel.favorite}&quot;/&gt;<br />&nbsp;
• &lt;CheckBox<br />&nbsp;&nbsp;&nbsp;&nbsp;android:id=&quot;@+id/favoriteCheckBox&quot;<br />&nbsp;&nbsp;&nbsp;&nbsp;android:checked=&quot;@{viewmodel.favorite}&quot;/&gt;<br />&nbsp;
• &lt;CheckBox<br />&nbsp;&nbsp;&nbsp;&nbsp;android:id=&quot;@+id/favoriteCheckBox&quot;<br />&nbsp;&nbsp;&nbsp;&nbsp;android:checkable=&quot;@={viewmodel.favorite}&quot;/&gt;<br />&nbsp;
• &lt;CheckBox<br />&nbsp;&nbsp;&nbsp;&nbsp;android:id=&quot;@+id/favoriteCheckBox&quot;<br />&nbsp;&nbsp;&nbsp;&nbsp;android:checkable=&quot;@{viewmodel.favorite}&quot;/&gt;<br />&nbsp;