title: How to use Roboto in xml layout
body: <p>I hear it often nowadays: “Roboto is the default font type”. But how do I use this default font type? What I mean specifically is that in the old days when I used to download the assets, etc., I used to have to specify things like</p>
  
  <pre><code>&lt;item name="typeface"&gt;roboto_bold&lt;/item&gt;
  </code></pre>
  
  <p>Imagine I am interested in using all of say (in turn)</p>
  
  <pre><code>roboto_thin
   roboto_thin_italic
   roboto_light
   roboto_light_italic
   roboto_regular
   roboto_italic
   roboto_medium
   roboto_medium_italic
   roboto_bold
   roboto_bold_italic
   roboto_black
   roboto_black_italic
   roboto_condensed_light
   roboto_condensed_light_italic
   roboto_condensed_regular
   roboto_condensed_italic
   roboto_condensed_bold
   roboto_condensed_bold_italic
   roboto_slab_thin
   roboto_slab_light
   roboto_slab_regular
   roboto_slab_bold
  </code></pre>
  
  <p>How do I specify them in my xml layout file or <code>style.xml</code> file?</p>