title: Changing width and height in ConstraintLayout programmatically doesn't work
body: <p>I would like to change the following UI to be full screen programmatically.</p>
  
  <pre><code>&lt;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:id="@+id/layout"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      tools:context=".MainActivity"
      &gt;
  
      &lt;TextView
          android:id="@+id/one"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="ONE"
          android:background="@android:color/darker_gray"
          app:layout_constraintBottom_toBottomOf="parent"
          app:layout_constraintLeft_toLeftOf="parent"
          app:layout_constraintTop_toTopOf="parent"
          app:layout_constraintRight_toLeftOf="@+id/two"
  
          /&gt;
  
      &lt;TextView
          android:id="@+id/two"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="TWO"
          android:background="@android:color/holo_blue_dark"
          app:layout_constraintBottom_toBottomOf="parent"
          app:layout_constraintRight_toRightOf="parent"
          app:layout_constraintTop_toTopOf="parent"
          app:layout_constraintLeft_toRightOf="@+id/one"
          /&gt;
  
  &lt;/android.support.constraint.ConstraintLayout&gt;
  </code></pre>
  
  <p>In my Kotlin file:</p>
  
  <pre><code>class MainActivity : AppCompatActivity() {
  
      override fun onCreate(savedInstanceState: Bundle?) {
          super.onCreate(savedInstanceState)
          setContentView(R.layout.activity_main)
  
          val param = ConstraintLayout.LayoutParams(0, 0)
  
          one.layoutParams = param
          two.layoutParams = param
      }
  }
  </code></pre>
  
  <p>Both TextView disappears after I set the width and height to 0 instead of being scratched fullscreen.</p>
  
  <p>Desired UI
  <a href="https://i.stack.imgur.com/vcHNP.png" rel="noreferrer"><img src="https://i.stack.imgur.com/vcHNP.png" alt="enter image description here"></a></p>