A sample data binding layout

view_holder_feed_item.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools">
    <data>
        <variable name="content" type="com.example.epoxydemo.Content" />
        <variable
            name="listener"
            type="android.view.View.OnClickListener"/>
        <variable
            name="onLiked"
            type="android.view.View.OnClickListener"/>
    </data>
    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="@{listener::onClick}"
        >
        
        <ImageView
            android:id="@+id/by_image"
            app:srcCompat= "@mipmap/ic_launcher_round"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="10dp"/>

        <TextView
            android:id="@+id/by"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintStart_toEndOf="@id/by_image"
            tools:text="Test"
            android:padding="12dp"
            android:text="@{content.by}"
            />

        <TextView
            android:id="@+id/content"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintTop_toBottomOf="@id/by_image"
            android:padding="10dp"
            tools:text="Good morning!!!!"
            android:text="@{content.content}"
            android:onClick="@{listener::onClick}"
            />

        <TextView
            android:id="@+id/like"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="8dp"
            android:padding="10dp"
            android:text="@{content.likeCount > 0 ? content.likeCount + @string/likes: @string/like}"
            app:layout_constraintEnd_toStartOf="@+id/comment"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/content"
            android:onClick="@{onLiked::onClick}"
            />

        <TextView
            android:id="@+id/comment"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintStart_toEndOf="@+id/like"
            app:layout_constraintTop_toBottomOf="@id/content"
            app:layout_constraintEnd_toEndOf="parent"
            android:padding="10dp"
            android:text="Comment"
            android:onClick="@{listener::onClick}"
            />

        <View
            app:layout_constraintTop_toBottomOf="@id/like"
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:padding="10dp"
            android:background="@android:color/black"
            />

        
    </android.support.constraint.ConstraintLayout>

</layout>