有時候我們需要修改列表裡的資料，並實時重新整理，我們除了在在外部呼叫adapter.notifyDataSetChanged()方法來通知activity重新整理，  如果在adapter內部有涉及到更新資料，刪除或者增加資料，就可以直接在adapter內部呼叫notifyDataSetChanged()這個方法，前提是該listview繫結的資料有改變。

以下例子結合Handler，執行緒展示

public class MyAdapter extends BaseAdapter {
	private final static String tag = "MyAdapter";
	private List<Alarm> alarms;
	private static final int MODIFY_FAIL = 13;
	private static final int MODIFY_SUCCESS = 12;
	private static final int DELETE_SUCCESS= 10;
	private static final int STUDY_SUCCESS = 11;
	private Context context;
	private LayoutInflater inflater;
	private TextView tvDeviceName;
	int msgType;
	private Alarm alarm;
	private Dialog confirmDlg;
	// BaseHandler baseHandler;
	public MyAdapter(Context context, List<Alarm> alarms) {
		// TODO Auto-generated constructor stub
		this.context = context;
		this.alarms = alarms;
		inflater = LayoutInflater.from(context);
	}
	
	.......

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {

		alarm = alarms.get(position);
		if (convertView == null) {
			convertView = inflater.inflate(R.layout.alarm_manage_item, parent,
					false);

		}
		tvDeviceName = (TextView) convertView.findViewById(R.id.tv_device_name);
		tvDeviceName.setText(alarm.getName());	
		.......
		
		return convertView;
	}
 

由於程式碼太多，中間部分省略了

以下是Handler部分，通過Handler,Thread,Message可進行非同步操作 ，記住，在Handler的CallBack（）方法內不能對UI進行操作，但是可以傳送一個空訊息到訊息佇列

contextHandler.sendEmptyMessage(MODIFY_FAIL);

handleMessage()方法就能夠處理訊息佇列中的訊息了，在這個方法裡面可對UI進行操作，

</pre><p></p><h5>要在BaseAdapter內進行通知重新整理，關鍵在於一句 .this.notifyDataSetChanged();</h5><pre name="code" class="java">
 

</pre><p></p><p></p><pre name="code" class="java">private BaseHandler contextHandler = new BaseHandler(context) {

		@Override
		public void callBack(String recvHex) {
			// TODO Auto-generated method stub
			super.callBack(recvHex);
			recvHex = recvHex.toUpperCase().trim();
			String[] strs = recvHex.split(" ");
			msgType = OutPutProtocol.analysisOutPutOperInfo(recvHex);
			// 修改名稱應答
			if (DeviseSettingProtocol.modifyDeviceNameMsg(recvHex) == Resp.Rst_Success) {
				if(strs[3].equals("00"))
				{
				SettingThread thread = new SettingThread(
						contextHandler,// 返回結果handler
						context, SettingThread.OperType_EditAlarm, alarm);
				thread.start();
				ProgressDialog.dismissProgressDialog();
				}
				else if(strs[3].equals("02")||strs[3].equals("FF"))
				{
					contextHandler.sendEmptyMessage(MODIFY_FAIL);//將一個空訊息送到訊息佇列
				}
			}
	}
		
		@Override
		public void handleMessage(Message msg) {
			// TODO Auto-generated method stub
			super.handleMessage(msg);

			switch (msg.what) {
			//修改名稱失敗
			case MODIFY_FAIL:
			{
				Toast.makeText(context, "修改失敗", Toast.LENGTH_SHORT).show();
			}
			case Resp.Rst_Fail:
			{
				Toast.makeText(context, "刪除失敗", Toast.LENGTH_SHORT).show();
			}
			case SettingThread.OperType_DelAlarm:
			{
				MyAdapter.this.notifyDataSetChanged();
				Toast.makeText(context, "刪除成功!",
						Toast.LENGTH_SHORT).show();
			}
			case SettingThread.OperType_EditAlarm:
			{
				MyAdapter.this.notifyDataSetChanged();
				Toast.makeText(context, "修改成功!",
						Toast.LENGTH_SHORT).show();
			}
			default:
				break;
			}
		}

	};
 

// 通過執行緒刪除資料庫中的資料
				SettingThread thread = new SettingThread(
						contextHandler,// 返回結果handler
						context, SettingThread.OperType_DelAlarm, alarm);
				thread.start();

執行緒機制，將Handler和一個識別符號

SettingThread.OperType_DelAlarm