主介面MainActivity.class
public class MainActivity extends Activity implements OnScrollListener{
    private ProgressBar loadInfo;
    private ListView listView;
    private LinearLayout loadLayout;
    private ArrayList items;
    private DatabaseService service;
    private int currentPage = 1; //預設在第一頁
    private static final int lineSize =10;    //每次顯示數
    private int allRecorders = 0;  //全部記錄數
    private int pageSize = 1;  //預設共一頁
    private Aleph0 baseAdapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        listView = (ListView) findViewById(R.id.listview);
        service = new DatabaseService(this);
        //建立一個角標線性佈局用來顯示正在載入
        loadLayout = new LinearLayout(this);
        loadLayout.setGravity(Gravity.CENTER);
        //定義一個ProgressBar表示“正在載入”
        loadInfo = new ProgressBar(this,null,android.R.attr.progressBarStyleSmall);
        //增加
 
元件
        loadLayout.addView(loadInfo, new LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
        //增加到listView頭部
        listView.addHeaderView(loadLayout);
        listView.setOnScrollListener(this);
         
        showAllData();
         
         
    }
     
    /**
     * 讀取全部資料
     */
    public void showAllData(){
         
        allRecorders = service.getCount();
        //計算總頁數
        pageSize = (allRecorders + lineSize -1) / lineSize; 
        items = service.getAllItems(currentPage, lineSize);
        Collections.reverse(items);  //倒序
        baseAdapter = new Aleph0();
        listView.setAdapter(baseAdapter);
        listView.setSelection(items.size());//直接定位到最底部
    }
    int firstItem=-1;
 
    @Override
    public void onScroll(AbsListView absView, int firstVisibleItem,
            int visibleItemCount, int totalItemCount) {
        firstItem=firstVisibleItem;
    }
    @Override
    public void onScrollStateChanged(AbsListView view, int scorllState) {
        if (firstItem==0&& currentPage < pageSize&& scorllState == OnScrollListener.SCROLL_STATE_IDLE) {// 不再滾動
            Log.e(log, 滑到第一位);
            currentPage++;
            // 增加資料
            appendDate();
        }
    }
     
    /**
     * 增加資料
     */
    private void appendDate(){
        final ArrayList additems = service.getAllItems(currentPage, lineSize);
        Collections.reverse(additems);
        baseAdapter.setCount(baseAdapter.getCount() + additems.size());
        //判斷，如果到了最末尾則去掉“正在載入”
        if(allRecorders == baseAdapter.getCount()){
            listView.removeHeaderView(loadLayout);
        }
        items.addAll(0, additems);
         
        baseAdapter.notifyDataSetChanged();
        listView.setSelection(additems.size());
         
    }
     
    class Aleph0 extends BaseAdapter {
        int count = lineSize;
 
        public int getCount() {
            return count;
        }
         
        public void setCount(int count){
            this.count = count;
        }
 
        public Object getItem(int pos) {
            return pos;
        }
 
        public long getItemId(int pos) {
            return pos;
        }
 
        public View getView(int pos, View v, ViewGroup p) {
            TextView view = new TextView(MainActivity.this);
            view.setTextSize(60);
            if(items != null){
                view.setText(items.get(pos));
            }else{
                view.setText(pos);
            }
            return view;
        }
    }
     
     
 
}
    /**
     * 重新整理檢視 *
     */
    public void setList(List bcData) {
        Collections.reverse(bcData);
        this.listMsg = bcData;
        notifyDataSetInvalidated();
        lv.setSelection(bcData.size());

    }

    /**
     * 載入更多 *
     */
    public void addList(final List newMsgData) {
        if (this.listMsg != null) {
            Collections.reverse(newMsgData);
            this.listMsg.addAll(0, newMsgData);
            notifyDataSetChanged();
            lv.setSelection(newMsgData.size() + 1);
        } else {
            setList(newMsgData);
        }
    }
 

2,主介面佈局檔案activity_main.xml

<linearlayout android:layout_height="fill_parent" android:layout_width="fill_parent" android:orientation="vertical" xmlns:android="http://schemas.android.com/apk/res/android">

    <listview android:id="@+id/listview" android:layout_height="fill_parent" android:layout_width="fill_parent">


</listview></linearlayout>

 
    
 

4，效果圖