title: How to use Roboto Font in TextView?
body: <p>how to use roboto font type for my text views ?
  I want to do it from xml and my app supports 4.1 above.
  below is something which I tried:</p>
  
  <pre><code> &lt;style name="BubbleNumber"&gt;
      &lt;item name="android:textStyle"&gt;normal&lt;/item&gt;    
      &lt;item name="android:fontFamily"&gt;sans-serif&lt;/item&gt; 
     &lt;item name="android:textSize"&gt;14sp&lt;/item&gt;
     &lt;item name="android:textColor"&gt;@color/bubble_text_color&lt;/item&gt;
   &lt;/style&gt;
  </code></pre>