android - Wrong Fragment Picked using View Pager -

i have 3 different fragments show using view pager. have added fragment adapter follows. title shown correct on click picking wrong fragment

 private void setupviewpager(viewpager viewpager) {         viewpageradapter adapter = new viewpageradapter(getsupportfragmentmanager());          adapter.addfragment(new acceptsfragment(), "accepts");         adapter.addfragment(new askedfragment(), "asked");         adapter.addfragment(new helpedfragment(), "helped");         viewpager.setadapter(adapter);     }  

here adapter implementation.

class viewpageradapter extends fragmentpageradapter {         private final list<fragment> mfragmentlist = new arraylist<>();         private final list<string> mfragmenttitlelist = new arraylist<>();          public viewpageradapter(fragmentmanager manager) {             super(manager);         }          @override         public fragment getitem(int position) {             log.d("fragment clicked ",string.valueof(position));             return mfragmentlist.get(position);         }          @override         public int getcount() {             //return mfragmentlist.size();             return mfragmentist.size();         }          public void addfragment(fragment fragment, string title) {             mfragmentlist.add(fragment);             mfragmenttitlelist.add(title);         }          @override         public charsequence getpagetitle(int position) {             return mfragmenttitlelist.get(position);         }     }