android - Setting FragmentStatePagerAdapter count to 0 does not destroy any current visible fragments -

i have pageradapter dynamic number of elements. can modify number of tabs single call, clears list , count 0. unfortunately, not remove fragment showing.

public class mypageradapter extends fragmentstatepageradapter {      private list<pojo> pojos = new arraylist<>;      @override     public int getcount() {         return pojos.size();     }        public void removeall() {         this.pojos.clear();         notifydatasetchanged();     } } 

does know how force viewpager clear himself?

update 1:

if use viewpager.removeallviews() viewpager unusable afterwards after adapter notifies new data changes.