title: How to make a widget fill remaining space in a Column
body: <p>In Android, we can do the following to make <code>ImageView</code> to fill as much space as possible depending on the size of the <code>TextView</code>.</p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical"&gt;
      &lt;ImageView
          android:layout_width="wrap_content"
          android:layout_height="0dp"
          android:layout_weight="1"/&gt;
      &lt;TextView
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"/&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>How do we achieve this in <code>Flutter</code>? Assume I need to make <code>Datetime</code>(green) to fill as much as possible.</p>
  
  <pre class="lang-dart prettyprint-override"><code>new Column(
      children: &lt;Widget&gt;[
          new Text('Title',
              style: new TextStyle(fontWeight: FontWeight.bold)
          ),
          new Text('Datetime',
              style: new TextStyle(color: Colors.grey)
          ),
      ],
  )
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/9HdBC.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9HdBC.png" alt="enter image description here"></a></p>