This is what i am doing to get user detail. I am able to get FbId,user name and usergender,I wants to get user birthdate too.please check below code Thanks in advance :- 

```
GraphRequest request = GraphRequest.newMeRequest(AccessToken.getCurrentAccessToken(),
                    new GraphRequest.GraphJSONObjectCallback() {
                        @Override
                        public void onCompleted(JSONObject user, GraphResponse response) {
                            // Application code
                            if (AccessToken.getCurrentAccessToken() != null) {
                                if (user != null) {
                                    Log4Android.e(FaceBookLogin.this, user.toString());
    //                                Log.e("onCompleted ", "  1= > " + new Gson().toJson(user));
                                    facebookUser = new Gson().fromJson(user.toString(), FacebookUser.class);
                                    try {
    //                                    Log.e("onCompleted ", "  2= > " + new Gson().toJson(user));
                                        Log.e("onCompleted ", "  22= > " + new Gson().toJson(facebookUser));
                                        if (facebookUser.getEmail() != null || !facebookUser.getEmail().equals("")) {
                                            checkUserStatus(context, facebookUser.getId());
                                        } else {
                                            UtilitySingleton.getInstance(context).ShowToast(R.string.email_error);
                                        }
                                    } catch (Exception e) {
                                        e.printStackTrace();
                                        facebookUser = getUsableData(response);
                                        UtilitySingleton.getInstance(context).ShowToast(R.string.email_error);
                                    }
                                }
                            }
                        }
                    });

            Bundle parameters = new Bundle();
    //        parameters.putString("fields", "id,name,email,first_name,last_name");
            parameters.putString("fields", "id,name,email,gender,birthday,first_name,last_name");
            request.setParameters(parameters);
            request.executeAsync();

```