title: How to set default font family for entire Android app
body: <p>I'm using the Roboto light font in my app. To set the font I've to add the <code>android:fontFamily="sans-serif-light"</code> to every view. Is there any way to declare the Roboto font as default font family to entire app? I've tried like this but it didn't seem to work.</p>
  
  <pre><code>&lt;style name="AppBaseTheme" parent="android:Theme.Light"&gt;&lt;/style&gt;
  
  &lt;style name="AppTheme" parent="AppBaseTheme"&gt;
      &lt;item name="android:fontFamily"&gt;sans-serif-light&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>