从Parse下载数据

Question

我尝试在解析类中下载数据，我有2个对象，它们在同一个trade_id中。但是，当我将它们下载到一个ArrayList中它仅显示1 .. 这里是我的代码：

final ArrayList<Photo> photos = new ArrayList<>(); 

      try { 
       ParseQuery<ParseObject> query1 = new ParseQuery<>("photo"); 
       query1.whereEqualTo("trade_id",idTrade); 
       list = query.find(); 
       for (ParseObject mPhoto : list) { 
        Photo newPhoto = new Photo(); 
        newPhoto.setPhoto((File) mPhoto.get("imageFile")); 
        photos.add(newPhoto); 
       } 
      } catch (com.parse.ParseException e) { 
       Log.e("Error", e.getMessage()); 
       e.printStackTrace(); 
      } 
      int photosize = photos.size(); 
      Toast.makeText(getActivity(),""+photosize,Toast.LENGTH_LONG).show(); 

告诉我该怎么解决？ pleae！

Answer 1

尝试query1.whereMatches将返回所有可能的匹配

ParseQuery<ParseObject> query1 = new ParseQuery<>("photo"); 
       query1.whereMatches("trade_id",idTrade); 
       list = query.find();