Include tag and dataBinding

You can pass that from parent.xml

<include layout="@layout/custom"
    android:id="@+id/layout1"
    app:user="@{object of user1`}"/>

<include layout="@layout/custom"
    android:id="@+id/layout2"
    app:user="@{object of user2`}"/>

Here you need to pass User object from parent.xml

Make sure you have <data> in custom.xml

<data>
   <variable name="user" type="com.myproject.model.User"/>
</data>

Here is detailed answer related to this, refer it