listview底部增多更多数据后，总是刷新到最顶部了_Android

listview底部增加更多数据后，总是刷新到最顶部了


		protected void onPostExecute(Void result)
                {
		getapp();
                //mListView.setAdapter(adapter);已在getapp中实现
		adapter.notifyDataSetChanged();	
                mListView.onLoadMoreComplete();
		super.onPostExecute(result);
                }

请高手给指导一二
------解决方案--------------------

引用:


		protected void onPostExecute(Void result)
                {
		getapp();
                //mListView.setAdapter(adapter);已在getapp中实现
		adapter.notifyDataSetChanged();	
                mListView.onLoadMoreComplete();
		super.onPostExecute(result);
                }

请高手给指导一二

修改为：


		protected void onPostExecute(Void result)
                {
		getapp();
                //mListView.setAdapter(adapter);已在getapp中实现

                int nLastPos = mListView.getFirstVisiblePosition();
    		adapter.notifyDataSetChanged();	
                mListView.setSelection(nLastPos);
                mListView.onLoadMoreComplete();
		super.onPostExecute(result);
                }