title: How logout works in Facebook SDK Android
body: <p>I'm a bit confused about how facebook.logout(context) works.</p>
  
  <p>Because even after calling log out, I am able to get access to information that requires an auth_token. So how is that even possible?  I came across this topic, which let me a bit confused: <a href="https://stackoverflow.com/a/6597688/487940">https://stackoverflow.com/a/6597688/487940</a></p>
  
  <p>After reading that answer, this is my question: So if the user grants access to [my] application, he will always be authenticated if he is logged into the [official] facebook application? Even if I try to call facebook.logout(context) in [my] application, he will be logged in and my application will be able to make calls to Facebook API?'</p>
  
  <p>Sorry, about I'm not able to understand this behavior.</p>
  
  <p><strong>UPDATE:</strong> After reading Torid's reponse, I am confused about facebook.logout() function.  What is the purpose of this function if it does not log the user out?  Because, I don't see the purpose of calling this purpose anymore. It doesn't log the user out.</p>