Question

这是我的异步任务。我希望显示listview click的详细视图。在文本视图中显示数据时出现了一些错误。我知道我们无法访问doInBackground.i中的UI。不知道怎么做OnpostExecute.help我

class Enquiryview extends AsyncTask<String, Void, JSONObject> {

     protected void onPreExecute() {
         super.onPreExecute();
         pDialog = new ProgressDialog(EnquiryDetail.this);
        // pDialog.setMessage("Loding...");
         pDialog.setIndeterminate(false);
         pDialog.setCancelable(true);
         pDialog.show();
     }
        protected JSONObject doInBackground(String... args) {
            List<NameValuePair> params = new ArrayList<NameValuePair>();


           // final String URL_LIST = "http://staging.homeneedsonline.com/ws/ws_address_detail.php?user_id="+ userid1+"";
            final String URL_LIST = "http://staging.homeneedsonline.com/ws/ws_enq_detail.php?ser_enq_id="+ enq_id+"";

               System.out.println(URL_LIST);
            JSONParser jsonParser = new JSONParser();    

           final JSONObject json = jsonParser.getJSONFromUrl(URL_LIST, get, params);



            System.out.println("enq----do in ---"+json);
            try {    
               String res = json.getString(KEY_SUCCESS); 
                 System.out.println("enq---------------is"+enq_id);
                int res1 = Integer.parseInt(res);
               if (res1 == 1) {
                  // String res = json.getString(KEY_SUCCESS); 
                   //System.out.println(res);

                    JSONObject jsonObject = json.getJSONObject("detail");

                     // setListAdapter(mAdapter);

                     // JSONArray json1=new JSONArray("data");

                       //Log.d("Address JSON: ", "> " + albums);

                     // Storing each json item values in variable
                      final String enqid = jsonObject.getString(ENQID);
                       String enqdate = jsonObject.getString(ENQ_DATE);
                       String status = jsonObject.getString(STATUS);
                       String usc = jsonObject.getString(USC);
                       String amount = jsonObject.getString(AMOUNT);

                    String address = jsonObject.getString(ENQ_ADDRESS);
                     String city = jsonObject.getString(CITY);
                    String state = jsonObject.getString(STATE);


                System.out.println(enqid);
                System.out.println(enqdate);

                System.out.println(usc);

                System.out.println(address);

                System.out.println(city);

                System.out.println(state);
               // service.setText();
                amounttext.setText(amount);
                //exname.setText();
                statustext.setText(status);
                addresstext.setText(address);

                citytext.setText(city);

                statetext.setText(state);

                //billno.setText();
                usctext.setText(usc);
                date.setText(enqdate);
                enqidtext.setText(enqid);



               }
               else
               {
                   Log.d("Addressssssssssssssssssssssssssssssssss: ", "null");


               }

         } catch (JSONException e) {
             e.printStackTrace();
         }

            return json;
        }

        }

        protected void onPostExecute(final JSONObject json1) {
            // check for login response
           /// System.out.println("enq----on post ---"+json);

            pDialog.dismiss();
               // Check your log cat for JSON reponse

        }

Answer 1

class Enquiryview extends AsyncTask<String, Void, JSONObject> {


final JSONObject json;
protected void onPreExecute() {
    super.onPreExecute();
    pDialog = new ProgressDialog(EnquiryDetail.this);
   // pDialog.setMessage("Loding...");
    pDialog.setIndeterminate(false);
    pDialog.setCancelable(true);
    pDialog.show();
}
   protected JSONObject doInBackground(String... args) {
       List<NameValuePair> params = new ArrayList<NameValuePair>();


      // final String URL_LIST = "http://staging.homeneedsonline.com/ws/ws_address_detail.php?user_id="+ userid1+"";
       final String URL_LIST = "http://staging.homeneedsonline.com/ws/ws_enq_detail.php?ser_enq_id="+ enq_id+"";

          System.out.println(URL_LIST);
       JSONParser jsonParser = new JSONParser();    

      json = jsonParser.getJSONFromUrl(URL_LIST, get, params);

      return null;


   }

   protected void onPostExecute(final JSONObject json1) {
       // check for login response
      /// System.out.println("enq----on post ---"+json);

       System.out.println("enq----do in ---"+json);
       try {    
          String res = json.getString(KEY_SUCCESS); 
            System.out.println("enq---------------is"+enq_id);
           int res1 = Integer.parseInt(res);
          if (res1 == 1) {
             // String res = json.getString(KEY_SUCCESS); 
              //System.out.println(res);

               JSONObject jsonObject = json.getJSONObject("detail");

                // setListAdapter(mAdapter);

                // JSONArray json1=new JSONArray("data");

                  //Log.d("Address JSON: ", "> " + albums);

                // Storing each json item values in variable
                 final String enqid = jsonObject.getString(ENQID);
                  String enqdate = jsonObject.getString(ENQ_DATE);
                  String status = jsonObject.getString(STATUS);
                  String usc = jsonObject.getString(USC);
                  String amount = jsonObject.getString(AMOUNT);

               String address = jsonObject.getString(ENQ_ADDRESS);
                String city = jsonObject.getString(CITY);
               String state = jsonObject.getString(STATE);


           System.out.println(enqid);
           System.out.println(enqdate);

           System.out.println(usc);

           System.out.println(address);

           System.out.println(city);

           System.out.println(state);
          // service.setText();
           amounttext.setText(amount);
           //exname.setText();
           statustext.setText(status);
           addresstext.setText(address);

           citytext.setText(city);

           statetext.setText(state);

           //billno.setText();
           usctext.setText(usc);
           date.setText(enqdate);
           enqidtext.setText(enqid);



          }
          else
          {
              Log.d("Addressssssssssssssssssssssssssssssssss: ", "null");


          }

    } catch (JSONException e) {
        e.printStackTrace();
    }

       return ;
   }


       pDialog.dismiss();
          // Check your log cat for JSON reponse

   }

试试这个

Answer 2

您需要从doInBackground方法返回JsonObject，无论您正在执行doInBackground的json解析，都需要将其移动到onPostExecute（）方法。如果有帮助，请告诉我

Listview细节视图

2 个答案: