title: Google Drive API File list: It is not possible to get the file of shared folder
body: <p>There is a folder shared with everyone (shared set of "Anyone with the link can view").<br>
  I want to get all spreadsheets in the folder by using the Drive API.</p>
  
  <p>I tried to get them by using the Files list of Drive API.<br>
  Then q parameter is the following.;</p>
  
  <ul>
  <li><a href="https://www.googleapis.com/drive/v2/files?q=" rel="nofollow">https://www.googleapis.com/drive/v2/files?q=</a>'{publishFolderId}' in parents and mimeType = 'application/vnd.google-apps.spreadsheet' and trashed = false</li>
  </ul>
  
  <p>But I could not get them. many tmes.</p>
  
  <pre><code>// response
  {
    "kind": "drive#fileList",
    "etag": "\"xxxxxxxxxxxxx\"",
    "selfLink": "xxxxxxxxxxx",
    "items": [
    ]
  }
  </code></pre>
  
  <p>Could I realize the above requirements by using the API of the Files list?</p>
  
  <p>　
  　<br>
  Remarks<br>
  In my guess...<br>
  Once I open the folder from the web browser, I can get them from the folder. </p>
  
  <p>Althogh I could not get them many times in eary August 2015,  the phenomnon seems to be reolved at this moment.</p>