Слишком много времени, чтобы получить большие данные json с сервера с помощью php volley library

Question

Я разрабатываю приложение, которое синхронизирует данные с сервера PHP с помощью библиотеки volley. Я получаю ответ json от php. Когда ответа мало, он работает отлично. Но проблема возникает, когда json очень большой. Я использую xaamp для синхронизации. Для загрузки данных требуется слишком много времени. Иногда не получается получать какие-либо данные. Я готовлю инструкцию от json массив php и добавив его в список простых массивов.

подвожу ошибка LogCat как:

36.713ms 
W/art: Suspending all threads took: 7.657ms 
I/art: Waiting for a blocking GC Alloc 
W/art: Suspending all threads took: 85.126ms 
W/art: Suspending all threads took: 40.203ms 
I/art: Background partial concurrent mark sweep GC freed 541(18KB) AllocSpace objects, 33(130MB) LOS objects, 11% free, 123MB/139MB, paused 42.528ms total 557.827ms 
I/art: WaitForGcToComplete blocked for 328.549ms for cause Alloc 
I/art: Starting a blocking GC Alloc 
W/art: Suspending all threads took: 5.369ms 
I/art: Background sticky concurrent mark sweep GC freed 105(3KB) AllocSpace objects, 3(11MB) LOS objects, 0% free, 142MB/142MB, paused 7.807ms total 52.573ms 
W/art: Suspending all threads took: 5.261ms 
W/art: Suspending all threads took: 294.041ms 
W/art: Suspending all threads took: 38.308ms 
I/art: Background partial concurrent mark sweep GC freed 388(13KB) AllocSpace objects, 26(103MB) LOS objects, 10% free, 133MB/149MB, paused 40.009ms total 515.759ms 
W/art: Suspending all threads took: 5.063ms 
I/art: Background sticky concurrent mark sweep GC freed 157(5KB) AllocSpace objects, 3(11MB) LOS objects, 0% free, 150MB/150MB, paused 7.052ms total 34.742ms 
I/art: Waiting for a blocking GC Alloc 
W/art: Suspending all threads took: 129.556ms 
I/art: Background partial concurrent mark sweep GC freed 494(16KB) AllocSpace objects, 36(142MB) LOS objects, 12% free, 110MB/126MB, paused 1.517ms total 672.880ms 
I/art: WaitForGcToComplete blocked for 485.833ms for cause Alloc 
I/art: Starting a blocking GC Alloc 
W/art: Suspending all threads took: 13.120ms 
I/art: Background sticky concurrent mark sweep GC freed 104(3KB) AllocSpace objects, 0(0B) LOS objects, 0% free, 138MB/138MB, paused 16.321ms total 38.525ms 
W/art: Suspending all threads took: 9.983ms 
W/art: Suspending all threads took: 285.230ms 
W/art: Suspending all threads took: 38.702ms 
I/art: Background partial concurrent mark sweep GC freed 435(14KB) AllocSpace objects, 27(106MB) LOS objects, 11% free, 127MB/143MB, paused 40.305ms total 493.740ms 
W/art: Suspending all threads took: 5.107ms 
I/art: Background sticky concurrent mark sweep GC freed 156(5KB) AllocSpace objects, 3(11MB) LOS objects, 0% free, 145MB/145MB, paused 6.856ms total 25.414ms 
W/art: Suspending all threads took: 413.504ms 
W/art: Suspending all threads took: 56.440ms 
I/art: Background partial concurrent mark sweep GC freed 14(464B) AllocSpace objects, 9(35MB) LOS objects, 12% free, 115MB/131MB, paused 59.022ms total 496.519ms 
I/art: Background sticky concurrent mark sweep GC freed 154(5KB) AllocSpace objects, 3(11MB) LOS objects, 0% free, 133MB/133MB, paused 5.741ms total 23.296ms 
I/art: Waiting for a blocking GC Alloc 
W/art: Suspending all threads took: 96.541ms 
W/art: Suspending all threads took: 43.589ms 
I/art: Background partial concurrent mark sweep GC freed 548(18KB) AllocSpace objects, 33(130MB) LOS objects, 11% free, 122MB/138MB, paused 45.755ms total 511.247ms 
I/art: WaitForGcToComplete blocked for 332.277ms for cause Alloc 
I/art: Starting a blocking GC Alloc 
W/art: Suspending all threads took: 12.093ms 
I/art: Background sticky concurrent mark sweep GC freed 104(3KB) AllocSpace objects, 0(0B) LOS objects, 0% free, 150MB/150MB, paused 15.972ms total 51.520ms 
W/art: Suspending all threads took: 7.796ms 

Мой массив JSON как ссылку. http://www.ktronsystem.com/data.json

мой андроид код

 public void m461async(){ 
     if (!(co.loggedInUserUniqid == "")) { 
      jdialog= new ProgressDialog(all.this); 
      jdialog.setMessage("m462 Please wait..We are processing your request."); 
      jdialog.setIndeterminate(false); 
      jdialog.setCancelable(false); 
      jdialog.show(); 

      final Cursor mall = co.data_db.rawQuery("select * from mall", null); 
      mall.moveToFirst(); 
      final int mrows = mall.getCount(); 
      System.out.print(mrows+" ababababababababqa"); 

      for (int idx = 0; idx < mrows; idx++) { 
       System.out.print("loop of m462 55555555555555555555555"); 
       mall.moveToPosition(idx); 
       mtempidx = idx; 
       final String mfilename = f1.getCol(mall, "filename").toLowerCase().trim(); 
       String mfilepath = co.getDataPath(cn) + "/"; 
       final String mfilefullname = mfilepath + mfilename; 

       if (new File(mfilefullname).exists()) { 
        StringRequest stringRequest= new StringRequest(Request.Method.POST, murl + "getonlinem461data.php", 
          new Response.Listener<String>() { 
           @Override 
           public void onResponse(final String response) { 
            mjay = mjay + 1; 
            System.out.println(mjay+ " m461111111111111111"+response); 

            class m461prepare extends AsyncTask<String, String, Integer> { 
             @Override 
             protected Integer doInBackground(String... params) { 
              msuccess=1; 
              System.out.println(mjay+" m46211111111111111"+response); 
              final String mquery="insert into m462 (accode,book,date,vno1,vno2,vno3,part,tot_debit,tot_credit,balance,cl_type,m462index) values "; 
              String mquery2=""; 

              try { 
               System.out.print("zzzzzzzzzzzzzzzzzzzzzzzzzzz"); 

               final SQLiteDatabase mdb1 =SQLiteDatabase.openDatabase(co.getDataPath(cn)+"/"+mfilename, null, SQLiteDatabase.OPEN_READWRITE); 
               mdb1.execSQL("delete from m462"); 
               mdb1.close(); 
               JSONArray arr = new JSONArray(response); 
               final ContentValues insertValues = new ContentValues(); 
               System.out.print("xxxxxxxxxxxxxxxxxxxxxx"); 

               if (arr.isNull(0)==false) { 
                System.out.print("ccccccccccccccccccccccccc"); 

                for (int i = 0; i < arr.length(); i++) { 
                 final JSONObject obj = (JSONObject) arr.get(i); 
                 final String maccode = obj.get("maccode").toString(); 
                 final String mbook = obj.get("mbook").toString(); 
                 final String mdate = obj.get("mdate").toString(); 
                 final String mvno1 = obj.get("mvno1").toString(); 
                 final String mvno2 = obj.get("mvno2").toString(); 
                 final String mvno3 = obj.get("mvno3").toString(); 
                 final String mpart = obj.get("mpart").toString(); 
                 final String mtot_debit = obj.get("mtot_debit").toString(); 
                 final String mtot_credit = obj.get("mtot_credit").toString(); 
                 final String mbalance = obj.get("mbalance").toString(); 
                 final String mcl_type = obj.get("mcl_type").toString(); 
                 final String mm462index = obj.get("mm462index").toString(); 

                 mquery2 = mquery2 
                   + "('" + f1.abc(maccode) + "'," + 
                   "'" + mbook + "'," + 
                   "'" + mdate + "'," + 
                   "'" + mvno1 + "'," + 
                   "'" + mvno2 + "'," + 
                   "'" + mvno3 + "'," + 
                   "'" + mpart + "'," + 
                   "'" + mtot_debit + "'," + 
                   "'" + mtot_credit + "'," + 
                   "'" + mbalance + "'," + 
                   "'" + mcl_type + "'," + 
                   "'" + mm462index + "'),"; 
                } 
                System.out.print("vvvvvvvvvvvvvvvvvvvvvvv"); 

                String mfinalquery = (mquery.trim() + mquery2.trim()); 
                mfinalquery = mfinalquery.substring(0, mfinalquery.length() - 1); 

                ArrayQuery.add(mfinalquery); 
                ArrayFilename.add(mfilefullname); 
               } 
              } catch (JSONException e) { 
               e.printStackTrace(); 
              } 
              System.out.print("bbbbbbbbbbbbbbbbbbbbbbb"); 

              return 0; 
             } 
             @Override 
             protected void onPostExecute(Integer a){ 
              System.out.print("nnnnnnnnnnnnnnnnnnnnnnnnnnnn"); 

              if (mall.isLast()) { 
               System.out.println("333333333333"); 
               jdialog.dismiss(); 
//            trasync(); 
              } 
             } 
            } 

            new m461prepare().execute(); 
           } 
          }, 
          new Response.ErrorListener() { 
           @Override 
           public void onErrorResponse(VolleyError error) { 
            merror=1; 
            jdialog.dismiss(); 
            f1.wait_wind("Please check your internet connection", cn); 
           } 
          }) { 
         @Override 
         protected Map<String, String> getParams() throws AuthFailureError { 
          Map<String, String> params = new HashMap<>(); 
          params.put("uniqid_guid", co.loggedInUserUniqid); 
          params.put("filename", mfilename); 
          return params; 
         } 
        }; 
        stringRequest.setRetryPolicy(new DefaultRetryPolicy(999999999, -1, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT)); 

        AppController.getInstance().addToRequestQueue(stringRequest,"m462_req"); 

       } 
      } 
      mall.close(); 
     } 
     else{ 
      f1.wait_wind("Please login first !",cn); 
     } 
    } 

спасибо заранее.

Answer 1

Если длина файла велика, вы должны запустить этот метод на фоне. попробуйте этот код:

@Override 
public void onResponse(String response) { 
    new Thread(new Runnable() { 
     @Override 
     public void run() { 
      JSONArray arr = new JSONArray(response); 

      int len = arr.length(); 
      for (int i = 0; i < len; i++) { 

       //write your parsing logic here 



      } 

     } 
    }).start(); 
}