Load More Item In Lazy Adapter And Listview

I am going to load more data in my list view. I can load more data but it will remove previous data. What should i do to append data in my list view ? Here is my source code: OnCr

Solution 1:

I don't see where you are instantiating 'pa' but the problem is you create a new adapter everytime and then overwrite the 'pa'. You need to move your logic up from:

adapter = new PostAdapter(_activity, PostList);
            adapter.notifyDataSetChanged(); 

            if ( pa == null ) {
                pa = adapter;
            } else {
                // I Think, I shoud update Adapter Here...! 
            }

            pa.notifyDataSetChanged();

            _list.setAdapter(pa);

To

if ( pa == null ) {
                adapter = new PostAdapter(_activity, PostList);
                pa = adapter;
            }else{
                pa.append(PostList); //You would need to create this method.
             }

            pa.notifyDataSetChanged();

            _list.setAdapter(pa);