带有来自JSON Response的标签的Android GridView

Question

任何人都知道如何通过加载具有图像和标签的JSON中的图像和标签来获取GridView。我已经完成了图像加载部分，但每次打开页面时，它都会复制图像并发现设置标签时遇到困难。请让我知道解决这个问题的方法。下面是适配器代码

public class ImageAdapterGrid extends BaseAdapter implements ListAdapter{
private Context mContext;

public ImageAdapterGrid(Context c){
    super();
    this.mContext = c;
    SymGridConfig.addImageUrls();        
}

  public int getCount() {
   return SymGridConfig.getUrl_list().size();

 }

public Object getItem(int position) {
   return SymGridConfig.getUrl_list().get(position);
 }

public long getItemId(int position) {
   return position;
 }

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

   View view = convertView;
   ImageView imageView;
   if(convertView==null)
   {

       imageView=new ImageView(mContext);
       imageView.setLayoutParams(new GridView.LayoutParams(180,180));
       imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
       imageView.setPadding(5,5,5,5);
   }else{
       imageView=(ImageView)convertView;

   }
   imageView.setImageDrawable(LoadImageFromURL(SymGridConfig.
                            getUrl_list().get(position)));       
   return imageView;

 }

  private Drawable LoadImageFromURL(String url)
   {
   try
   {
   InputStream is = (InputStream) new URL(url).getContent();
   Drawable d = Drawable.createFromStream(is, "src");
   return d;
   }catch (Exception e) {
   System.out.println(e);
   return null;
   }
   }
   }

和类SymGridConfig如下：

public class SymGridConfig {


 private static String url = "http://192.168.0.6/tele_medicine/index.php/symptoms/list";  

   private static final String SYMP_ID = "symp_id";
   private static final String SYMP_NAME = "symptom_name";
   private static final String SYMP_LOGO_URL = "symptom_logo";

  static ArrayList<String> url_list=new ArrayList<String>();
  static ArrayList<String> title_list = new ArrayList<String>();
  static ArrayList<Item> gridArray = new ArrayList<Item>();

  public static ArrayList<Item> getGridArray(){
    return gridArray;

  }
  public static void setGridArray(ArrayList<Item> gridArray)
  {
      SymGridConfig.gridArray = gridArray;
  }

   public static ArrayList<String> getUrl_list() {
       return url_list;
    }

   public static void setUrl_list(ArrayList<String> url_list) {
       SymGridConfig.url_list = url_list;
    }

  public static ArrayList<String> getTitles(){
        return title_list;
    }

   public static void setTitle_list(ArrayList<String> url_list) {
       SymGridConfig.url_list = url_list;
    }

   public static void addImageUrls(){   
     ServiceHandler sh = new ServiceHandler();

       // Making a request to url and getting response
       String jsonStr = sh.makeServiceCall(img_url, ServiceHandler.GET);

       if (jsonStr != null) {
           try {
            JSONArray jsonArray = new JSONArray(jsonStr);

            for (int i = 0; i < jsonArray.length(); i++) {
                JSONObject jsonObject = jsonArray.getJSONObject(i);

                   String diag_id = jsonObject.getString(SYMP_ID);   
                   String diag_name = jsonObject.getString(SYMP_NAME);
                   String img_url = jsonObject.getString(SYMP_LOGO_URL);
                   String logo_url="http://m2mapps.co.in/images/symptoms/";                        
                   img_url = logo_url.concat(img_url);
                   title_list.add(diag_name);
                   url_list.add(img_url);
                   gridArray.add(new Item(img_url,diag_name));

               }
           } catch (JSONException e) {
               e.printStackTrace();
           }
       } else {
           Log.e("ServiceHandler", "Couldn't get any data from the url");
       }    
  }
  }

上述代码会在我重新打开页面时加载图像并重复，并且在设置图像标签时遇到问题。标签应为symptom_name。