title: TextView in relative layout doesn't expand to fill available space
body: <p>why does the gray box (transaction_amount) in the following layout doesn't expand to full space available even though the layout:height is match parent for it.</p>
  
  <p><img src="https://i.stack.imgur.com/HhyTW.png" alt="enter image description here"></p>
  
  
  
  <p></p>
  
  <pre><code>&lt;TextView android:id="@+id/transaction_amount"
      android:layout_width="120dp"
      android:layout_height="match_parent"
      android:textAppearance="@android:style/TextAppearance.DeviceDefault.Large"
      android:textColor="@android:color/primary_text_light"
      android:background="@drawable/rounded_rectangle"
      tools:text="100"/&gt;
  
  &lt;TextView
      android:id="@+id/transaction_name"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_toRightOf="@+id/transaction_amount"
      android:textAppearance="@android:style/TextAppearance.DeviceDefault.Medium"
      android:textColor="@android:color/secondary_text_light"
      tools:text="Mast Kalandar Dinner"/&gt;
  
  &lt;TextView
      android:id="@+id/shared_bw_label"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignStart="@id/transaction_name"
      android:layout_toRightOf="@+id/transaction_amount"
      android:layout_below="@id/transaction_name"
      android:textAppearance="@android:style/TextAppearance.DeviceDefault.Small"
      android:textColor="@android:color/secondary_text_light_nodisable"
      android:text="Shared Between"/&gt;
  
  &lt;TextView
      android:id="@+id/shared_bw_csv"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_toRightOf="@id/shared_bw_label"
      android:layout_alignBaseline="@id/shared_bw_label"
      android:textAppearance="@android:style/TextAppearance.DeviceDefault.Small"
      android:textColor="@android:color/secondary_text_light_nodisable"
      tools:text="Ashu, Amol"/&gt;
  </code></pre>
  
  <p></p>