android - How to get parent activity reference in fragment constructor? -

i have gameactivity activity 1 of methods is:

/** show "game finished" dialog. */ public void showfinisheddlg(int bodymsgres) {     gamefinisheddlgfragment.newinstance(bodymsgres).show(             this.getfragmentmanager(), "finished_dlg"); } 

this dialog fragment method creates:

public class gamefinisheddlgfragment extends dialogfragment {      static gamefinisheddlgfragment newinstance(int bodymsgres) {          gamefinisheddlgfragment frag = new gamefinisheddlgfragment();         bundle bundle = new bundle();         bundle.putint("body_msg", bodymsgres);         frag.setarguments(bundle);         return frag;     }      @override     public dialog oncreatedialog(bundle savedinstancestate) {         bundle args = getarguments();         int bodymsgres = args.getint("body_msg");          // use builder class convenient dialog construction         alertdialog.builder builder = new alertdialog.builder(getactivity());         builder.setmessage(bodymsgres)                 .setpositivebutton(r.string.new_game, new dialoginterface.onclicklistener() {                     public void onclick(dialoginterface dialog, int id) {                         // problem here. todo: restart gameactivity                         this.parentactivity.recreate();                     }                 });          // create alertdialog object , return         return builder.create();     } } 

i'm trying make onclick of dialog's button restart gameactivity, can't figure out how reference activity instance.

if try:

this.parentactivity.recreate(); 

the compiler tells me:

cannot resolve symbol 'parentactivity' 

please override onattach method of fragment. incoming activity param parent activity.

lifecycle methods of fragment: http://developer.xamarin.com/guides/android/platform_features/fragments/part_1_-_creating_a_fragment/images/fragment_lifecycle.png

official reference: http://developer.android.com/reference/android/app/dialogfragment.html#onattach(android.app.activity)

or call getactivity() @ everywhere code, after onattach has completed! calling it, before onattach gives null

(read comments below)