android - Fragment have 2 toolbars, its own and that of activity -

i have homeacivity 4 fragments. 3 of fragments have no toolbar of own , showing activity's toolbar in them. however, 4th fragment have toolbar of own.

currently seeing 2 toolbars in 4th fragment, 1 own , other of activity.how can hide activity's toolbar , show own toolbar?

please note don't want update content of activity's toolbar instead of showing new toolbar inside fragment. want show fragments own toolbar , hide of activity.

please me out.

you can hide activity's toolbar 4th fragment

@override public view oncreateview(layoutinflater inflater, viewgroup container,                          bundle savedinstancestate) {     // inflate layout fragment     view rootview = inflater.inflate(r.layout.fragment_view, container, false);      ((toolbarview)getactivity().findviewbyid(r.id.toolbarview)).setvisibility(view.gone);      return rootview; } 

and show activity's toolbar other 3 fragments

@override public view oncreateview(layoutinflater inflater, viewgroup container,                          bundle savedinstancestate) {     // inflate layout fragment     view rootview = inflater.inflate(r.layout.fragment_view, container, false);      ((toolbarview)getactivity().findviewbyid(r.id.toolbarview)).setvisibility(view.visible);      return rootview; }