Fragment Life cycle issue

Question

I have implemented a Fragment and override its lifecycle callbackas as following:

@Override
    public void onActivityCreated(final Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        dactivity = getActivity();
        dactivity.bindService(new Intent(dactivity,EventosDatabaseService.class), this, 0);
    }
    @Override
    public void onDestroy() {
        super.onDestroy();
        dactivity.unbindService(this);
    }

It is documented that onActivityCreated call must heppen prior to onDestroy, then how come i get NullPointerException thrown because dactivity is null on onDestroy? what should i do to avoid it while making sure the binding wont produce a leak?

BTW, the RetainInstance of this fragment is false if that metters

Answer 1

Try bind your service in Fragment.onResume with registering broadcast listeners if available, and use Fragment.onPause to unbind service and unregister listeners

Answer 2

I wish the image i posted could offer better understanding to figure out how fragments work.