facebook - Android AccessToken.getCurrentAccessToken() always null in another activity -

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i'm trying implement activity shows facebook friend's of user.

graphrequest request = graphrequest.newmerequest(accesstoken.getcurrentaccesstoken(), new graphrequest.graphjsonobjectcallback() {             @override             public void oncompleted(jsonobject object, graphresponse response) {                 if (response.geterror() != null)                     log.d("xxx", "facebook graph request error");                 else                     log.d("xxx", "facebook graph request success");             }         });          bundle parameters = new bundle();         parameters.putstring("fields", "friends");         request.setparameters(parameters);         request.executeasync();

but currentaccesstoken null. if user logged in 10 seconds before.

this login code :

parsefacebookutils.loginwithreadpermissionsinbackground(this, arrays.aslist("public_profile", "user_birthday", "user_friends", "user_photos", "email"), new logincallback() {         @override         public void done(parseuser user, parseexception err) {             if (user == null) {                 log.d("xxx", "uh oh. user cancelled facebook login.");             } else if (user.isnew()) {                 log.d("xxx", "user signed , logged in through facebook!");                 makemerequest();             } else {                 log.d("xxx", "user logged in through facebook!");                 makemerequest();             }         }     });    private void makemerequest(){     graphrequest request = graphrequest.newmerequest(accesstoken.getcurrentaccesstoken(), new graphrequest.graphjsonobjectcallback() {         @override         public void oncompleted(jsonobject json, graphresponse response) {             if (response.geterror() != null) {                 log.d("xxx", "facebook graph request error");             } else {                 log.d("xxx", "facebook graph request success");                  ...             }         }     });      bundle parameters = new bundle();     parameters.putstring("fields", "id,name,picture.type(large),email,birthday,first_name,last_name,gender,locale");     request.setparameters(parameters);     request.executeasync(); }

i'm pretty sure ahve forgotten can't figure out ..

thanks,


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