title: Callback after sharing intent completes
body: <p>I'm using the following code to share stuff on my android app:</p>
  
  <pre><code>Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
  shareIntent.setType("text/plain");
  shareIntent.putExtra(android.content.Intent.EXTRA_TEXT, "blah blah blah");
  this.startActivity(Intent.createChooser(shareIntent, "Choose a sharing option:"));
  </code></pre>
  
  <p>I need to know if the user did share with success or if it failed. Is there anyway to get a callback when the sharing action is complete?</p>