title: Android How to use string resource in gradle file
body: <p>On <a href="https://developer.android.com/studio/publish/versioning.html" rel="noreferrer">this</a> page, it is written:</p>
  
  <blockquote>
    <p>versionName — A string used as the version number shown to users.
    This setting can be specified as a raw string or as a reference to a
    string resource.</p>
  </blockquote>
  
  <p>I would like to use a resource as version number. Something like @string/version .</p>
  
  <p>What's the way ?</p>
  
  <p>Thanks</p>
  
  <p>Julien</p>