title: Expansion Files - Copying and Using
body: <p>I have been looking at a few different tutorials, however am really struggling to see exactly how the Expansion Files can be firstly copied to a location that the user cannot access adn the how to use them in my actual app.</p>
  
  <p>I will have a lot of key images within the Expansion file and therefore would also need to prevent users from playing the game until everything is downloaded.</p>
  
  <p>Finally, I would have to also access a density based section for a lot of the images, along with a handful of raw files such as videos, this is what I currently have to work out which folder to open within the extension files.</p>
  
  <pre><code>String ExpansionFolder = "";
  switch (getResources().getDisplayMetrics().densityDpi)
  {
      case DisplayMetrics.DENSITY_MEDIUM:
          ExpansionFolder = "mdpi";
          break;
      case DisplayMetrics.DENSITY_HIGH:
          ExpansionFolder = "hdpi";
          break;
      default: // This cover XHDPI, XXHDPI, TVDPI
          ExpansionFolder = "xhdpi";
          break;
  }
  </code></pre>
  
  <p>Some sample code that i can use would be much appreciated.</p>