ConstraintLayout: set height of all views in row to match the tallest one

Answering, in case anyone is looking out for answer in future.

ConstraintLayout introduced Barrier in v1.1 to achieve one such functionality asked by the OP in the question

The above mentioned functionality can be achieved using below xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    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"
    android:layout_marginLeft="2dp"
    android:layout_marginRight="2dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

  <TextView
      android:id="@+id/id1"
      android:layout_width="60dp"
      android:layout_height="wrap_content"
      app:layout_constraintTop_toTopOf="parent"
      app:layout_constraintLeft_toLeftOf="parent"
      app:layout_constraintBottom_toBottomOf="@+id/barrier"
      app:layout_constraintVertical_bias="0.0"
      android:text="@string/id1_text" />

  <TextView
      android:id="@+id/id2"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      app:layout_constraintLeft_toRightOf="@+id/id1"
      app:layout_constraintRight_toRightOf="parent"
      app:layout_constraintTop_toTopOf="parent"
      app:layout_constraintBottom_toBottomOf="@+id/barrier"
      app:layout_constraintVertical_bias="0.0"
      android:text="@string/id2_text" />

  <android.support.constraint.Barrier
      android:id="@+id/barrier"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      app:barrierDirection="bottom"
      app:constraint_referenced_ids="id1,id2" />

</android.support.constraint.ConstraintLayout>