java - Name and profile picture from Facebook into Android app -

i'm having problems displaying facebook picture , name. can't figure out right way it. login button facebook works fine.

i got error: profilepictureview.setprofileid(profile.getid()); error null

public class profile extends activity { /**  * called when activity first created.  */  webview web; arraylist<navigationdraweritem> listitems; drawerlayout drawerlayout; actionbardrawertoggle drawertoggle; listview list;  private callbackmanager callbackmanager; private profilepictureview profilepictureview;  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     facebooksdk.sdkinitialize(getapplicationcontext());     setcontentview(r.layout.activity_profile);     callbackmanager = callbackmanager.factory.create();     loginbutton loginbutton = (loginbutton) findviewbyid(r.id.login_button);     loginbutton.setreadpermissions("public_profile", "email", "user_friends");     final profilepictureview profilepictureview = (profilepictureview) findviewbyid(r.id.profilepic);         loginbutton.registercallback(callbackmanager, new facebookcallback<loginresult>() {           @override         public void onsuccess(loginresult loginresult) {             accesstoken accesstoken = loginresult.getaccesstoken();    com.facebook.profile profile = com.facebook.profile.getcurrentprofile();             profilepictureview.setprofileid(profile.getid()); intent = new intent(profile.this, profile.class);             startactivity(i);             system.out.print("logged in");          }           public final void getprofileid(){             log.i("profileid", "your profileid");         }           public final void setprofileid(string profileid)    {             log.i("profileid", "your profileid");         }          @override         public void oncancel() {             // app code          }          @override         public void onerror(facebookexception exception) {             // app code             log.i("error", "error");         }       }); 

my xml file shows no user image. not mine.

    <com.facebook.login.widget.profilepictureview         android:id="@+id/welcome_profile_pic"         android:layout_height="wrap_content"         android:layout_width="wrap_content"         android:layout_gravity="center"         android:gravity="center_horizontal"         facebook:preset_size="small" /> 

first me tells me might missing

@override public void onactivityresult(int requestcode, int resultcode, intent data) { super.onactivityresult(requestcode, resultcode, data);  }