title: FacebookDialog.ShareDialogBuilder in Facebook Android SDK
body: <p>I'm using the following way to post a message via Android Facebook SDK</p>
  
  <pre><code>FacebookDialog shareDialog = new FacebookDialog.ShareDialogBuilder(mActivity)
                  .setApplicationName("My app")
                  .setName("Hi All:")
                  .setPicture("https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/27928_228440670639329_1320586523_n.jpg")
                  .setDescription("I've just created a card, Check it out!")
                  .setLink(shareLink)
                  .build();
  </code></pre>
  
  <p>To be confused, on Facebook feed, there would an advertisement inserted. What's wrong with my code?
  <img src="https://i.stack.imgur.com/4eI32.png" alt="enter image description here"></p>