Android Dynamically load Listview at scroll end?

Question

I am loading a listview from Http server, 20 at a time ,At the end of Listview I a want to load next 20 data from server and this process will continue till

Answer 1

This is what I used to load more data at the end of the listview

        listview.setOnScrollListener(new OnScrollListener(){

        @Override
        public void onScroll(AbsListView view,
        int firstVisibleItem, int visibleItemCount,
        int totalItemCount) {
        //Algorithm to check if the last item is visible or not
        final int lastItem = firstVisibleItem + visibleItemCount;
        if(lastItem == totalItemCount){                 
        // you have reached end of list, load more data             
        }
       } 
        @Override
        public void onScrollStateChanged(AbsListView view,int scrollState) {
        //blank, not using this
        }
        });