ShowCase not showing for custom listview

[Nik2505]

In Normal case my showcase view is working perfectly but when i put same code inside custom listview

listView.setOnHierarchyChangeListener(new ViewGroup.OnHierarchyChangeListener() {

        @Override
        public void onChildViewRemoved(View arg0, View arg1) {
            // TODO Auto-generated method stub

                           [ showing ShowCaseView here...]

        }

        @Override
        public void onChildViewAdded(View arg0, View arg1) {
            // TODO Auto-generated method stub

        }
    });

}

It goes inside procedure of showcase but i can't showing to my activity.