make a request to the facebook graph api with the given string parameters using an http get default method . see http://developers.facebook.com/docs/api note that this method is asynchronous and the callback will be invoked in a background thread ; operations that affect the ui will need to be posted to the ui thread or an appropriate handler . this method is deprecated . see facebook and com.facebook.request for more info . concode_field_sep Facebook fb concode_field_sep void onFileNotFoundException concode_elem_sep void logout concode_elem_sep void logout concode_elem_sep void onComplete concode_elem_sep void onIOException concode_elem_sep void onMalformedURLException concode_elem_sep void onFacebookError