如何解決嘗試更新列表視圖時出現的IllegalStateException錯誤？

我試圖讓這段代碼運行，但是當我運行這段代碼時，我得到一個IllegalStateException，說沒有通知listview的內容，但是我有更新數據的通知。這是一個自定義列表視圖適配器。這裏是我的代碼的相關部分：如何解決嘗試更新列表視圖時出現的IllegalStateException錯誤？

class LoadingThread extends Thread { 
    public void run() { 
     int itemsOriginallyLoaded = 0; 
     synchronized(items) { 
      itemsOriginallyLoaded = items.size(); 
     } 
     for(int i = itemsOriginallyLoaded ; i < itemsToLoad ; ++i) { 
      Log.d(LOG_TAG, "Loading item #"+i); 
      //String item = "FAIL"; 
      //try { 
      String item = "FAIL"; 
      try { 
       item = stockGrabber.getStockString(dataSource.get(i)); 
      } catch (ApiException e) { 
       Log.e(LOG_TAG, "Problem making API request", e); 
      } catch (ParseException e) { 
       Log.e(LOG_TAG, "Problem parsing API request", e); 
      } 
      //} catch (ApiException e) { 
      // Log.e(TAG, "Problem making API request", e); 
      //} catch (ParseException e) { 
      // Log.e(TAG, "Problem parsing API request", e); 
      //} 
      synchronized(items) { 
       items.add(item); 
      } 
      itemsLoaded = i+1; 
      uiHandler.post(updateTask); 
      Log.d(LOG_TAG, "Published item #"+i); 
     } 
     if(itemsLoaded >= (dataSource.size() - 1)) 
      allItemsLoaded = true; 
     synchronized(loading) { 
      loading = Boolean.FALSE; 
     } 
    } 
} 

class UIUpdateTask implements Runnable { 
    public void run() { 
     Log.d(LOG_TAG, "Publishing progress"); 
     notifyDataSetChanged(); 
    } 
}

來源

2010-05-03 Michael Vetrano