public class MainActivity extends Activity {

    private ListView lv;
    
    private List<Food>  data = new ArrayList<Food>();
    
    private MyAdapter mAdapter;
    
    private ProgressDialog  pd;
    
    private boolean isNextPage;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        
 
super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        lv = (ListView) findViewById(R.id.lv);
    
        pd = new ProgressDialog(this);
        
        mAdapter = new MyAdapter(this, data);
        
        lv.setAdapter(mAdapter);
        
        new
 
 MyFoodTask().execute();
        
        
    }

    
    private class MyFoodTask extends AsyncTask<String, Void, Map<String,Object>>{
        @Override
        protected void onPreExecute() {
            
            pd.setMessage("Loading...");
            
        }

        

        @Override
        
 
protected Map<String, Object> doInBackground(String... params) {
        
            String path  = "http://10.0.2.2:8080/TestWeb/bbb";
            HttpClient client = new DefaultHttpClient();
            HttpGet get = new HttpGet(path);
            
            try {
                HttpResponse resp = client.execute(get);
                if(resp.getStatusLine().getStatusCode()==200){
                    
                    HttpEntity entity = resp.getEntity();
                    String result = EntityUtils.toString(entity);
                    Log.i("111", "result="+result);
                    Map<String,Object> map =  parseJson(result);
                    return map;
                    
                }
            
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            
            
            
            return null;
        }
        
        
        @Override
        protected void onPostExecute(Map<String, Object> result) {
                
            pd.dismiss();
            isNextPage =  (Boolean) result.get("isNextPage");
            data.addAll(  (List<Food>) result.get("foodList")  );
            mAdapter.notifyDataSetChanged();
            
            for(int i = 0;i<data.size();i++){
                
                Food f = data.get(i);
                
                new MyImgTask().execute(f);
            
        }    
    }
    
    
    private Map<String,Object> parseJson(String json) throws Exception{
        
        Map<String ,Object> result = new HashMap<String,Object>();
        List<Food> lists = new ArrayList<Food>();
        JSONObject  bigObj = new JSONObject(json);
        result.put("isNextPage",  bigObj.getBoolean("isNextPage"));
        JSONArray array = bigObj.getJSONArray("foodList");
        Food  f = null;
        for(int i =0 ;i<array.length();i++){
            f = new Food();
            JSONObject smallObj = array.getJSONObject(i);
            
            f.setId( smallObj.getInt("id") );
            f.setName( smallObj.getString("name") );
            f.setDesc(smallObj.getString("desc"));
            f.setImgPath( smallObj.getString("imgPath") );
            lists.add(f);
        }
        result.put("foodList", lists);
        return result;
        
        
    }
    
    
    private class MyImgTask extends AsyncTask<Food, Void, Food>{

        @Override
        protected Food doInBackground(Food... params) {
        
            Food f =  params[0];
            String imgPath = "http://10.0.2.2:8080/TestWeb"+f.getImgPath();
            
            HttpClient client = new DefaultHttpClient();
            HttpGet get = new HttpGet(imgPath);    
            try {
                HttpResponse resp = client.execute(get);
                if(resp.getStatusLine().getStatusCode()==200){
                    
                    HttpEntity entity = resp.getEntity();
                    byte img [] = EntityUtils.toByteArray(entity);                
                    f.setImgData(img);            
                }
                
            } catch (Exception e) {
                e.printStackTrace();
            }
            return f;        
        }

        @Override
        protected void onPostExecute(Food result) {
            mAdapter.notifyDataSetChanged();
        }        
    }
    }
}