java - How to use Facebook SDK to post article to specific friend's wall? [android] -

i beginner of facebook sdk. have reference facebook sdk sample inside "hellowfacebooksampleactivity"file , know how use request.newstatusupdaterequest (post user's own wall) not know how use request.newpostrequest post article specific friend's wall , not know how use inside parameters .in particular,i dont know how use third graphobject parameter. have been found lot of information, because api has been revised ,so information not used. there examples or website allows me accomplish goal? thank much! here code want used changed.

 private void poststatusupdate() {
  
if (user != null && haspublishpermission()) {             final string message = getstring(r.string.status_update, user.getfirstname(), (new date().tostring()));
          request request = request.newstatusupdaterequest(session.getactivesession(), message, new request.callback() {    //request request = request.newpostrequest(session.getactivesession(), "1000001851621**",graphobject??? , new request.callback() {                        @override                     public void oncompleted(response response) {                         showpublishresult(message, response.getgraphobject(), response.geterror());                     }                 });         request.executeasync();     } else {         pendingaction = pendingaction.post_status_update;     } } 

facebook updated sdk few months ago require use native feed dialog instead of own method. makes user has @ pre-made facebook window post on person's wall.

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