title: Android CardView corner radius not applying in Kitkat
body: <p>I am working with <code>CardView</code> in android. I am trying to give corner radius to the <code>CardView</code>. I am able to do so from the XML. The code is working in expected way in Lollipop and above, but on android 4.4 devices, I am not seeing the corner radius being applied.</p>
  
  <pre><code>&lt;android.support.v7.widget.CardView
      android:id="@+id/cardView"
      android:layout_width="250dp"
      android:layout_height="wrap_content"
      card_view:cardCornerRadius="20dp"
      card_view:cardBackgroundColor="@android:color/transparent"
      app:cardUseCompatPadding="true"
      app:cardPreventCornerOverlap="false"
      card_view:cardElevation="0dp"&gt;
  </code></pre>