title: The activity doesn't go back to the previous one (using facebook sdk)
body: <p>I m using facebook sdk to allow users to log into my app using their facebook account, I m using a fragment that launches an other activity after the login access, and it works fine. The issue is that this activity doesn't come back to the previous one. Facebook SDK 4.0 uses an other activity which is implemented in the SDK and it handles the login, does it have something to do with this issue.
  The code I am using:</p>
  
  <pre><code>@Override
  public void onResume() {
      super.onResume();
      profileTracker.startTracking();
      tokenTracker.startTracking();
      Profile profile = Profile.getCurrentProfile();
      if (profile != null) {
          Intent intent = new Intent(getActivity(), PlayingActivity.class);
          getActivity().startActivity(intent);
      }
  }
  </code></pre>