title: Android create a folder in phone memory
body: <p>When I connect my phone to PC I can see different folders, like Movies, Pictures, but also some folders created by apps I have installed, like a "WhatsApp" folder. How can I create my own folder at the same level of Movies, WhatsApp, etc., like other apps do?</p>
  
  <p>I tried with</p>
  
  <pre><code>private static final String DNAME = "zip";
  
  rootPath = new File(Environment.getExternalStorageDirectory(), DNAME);          
  if(!rootPath.exists()) {                
   Log.i(TAG, "!rootPath " + rootPath.getAbsolutePath());
   rootPath.mkdirs();         
  }
  </code></pre>
  
  <p>but when "zip" folder is not present, it is not created. If I create it via Windows explorer from my PC, it is not seen by the app.</p>