値org.json.jsonobjectは

Question

私は、データベースからマーカーを追加しよう

をjsonarrayに変換することはできませんが、私はエラー値org.json.jsonobjectが、これは私のコードである

05-12 22:30:18.300 2926-2926/com.example.getgpslocation W/System.err: org.json.JSONException: Value {"markers":[{"lat":"-0.6092131","lng":"35.2236078"},{"lat":"-0.6340827","lng":"35.1907590"},{"lat":"-0.6292730","lng":"35.1914282"},{"lat":"-0.6292730","lng":"35.2102234"},{"lat":"-0.6139107 ","lng":"35.2128532"},{"lat":"-0.6239696","lng":"35.2201147"},{"lat":"-0.6230255","lng":"35.2174852"},{"lat":"-0.6296344","lng":"35.2231999"},{"lat":"-0.6305786","lng":"35.2246723"},{"lat":"-0.6423803","lng":"35.2206756"},{"lat":"-0.6330677","lng":"35.2163282"},{"lat":"-0.6243836","lng":"35.2161752"},{"lat":"-0.6272590","lng":"35.2102847"},{"lat":"-0.6254565","lng":"35.2031314"},{"lat":"-0.6191050","lng":"35.2011677"},{"lat":"-0.6125390","lng":"35.1946448"},{"lat":"-0.6149852","lng":"35.1927510"},{"lat":"-0.6187617","lng":"35.1926107"},{"lat":"-0.6330677","lng":"35.2163282"},{"lat":"-0.6243836","lng":"35.2161752"},{"lat":"-0.6272590","lng":"35.2102847"},{"lat":"-0.6254565","lng":"35.2031314"},{"lat":"-0.6191050","lng":"35.2011677"},{"lat":"-0.6125390","lng":"35.1946448"},{"lat":"-0.6149852","lng":"35.1927510"},{"lat":"-0.6187617","lng":"35.1926107"},{"lat":"-0.6422793","lng":"35.1904012"},{"lat":"-0.6495749","lng":"35.1859469"},{"lat":"-0.6600892","lng":"35.1788616"},{"lat":"-0.6449401","lng":"35.1798438"},{"lat":"-0.6352412","lng":"35.1802647"},{"lat":"-0.6267440","lng":"35.1816327"},{"lat":"-0.6394620","lng":"35.2172748 "}]} of type org.json.JSONObject cannot be converted to JSONArray 

をjsonarrayに変換することができない持っています：私の知る限り、これは動作するはずですので

try{ 
    JSONObject jsonObj = new JSONObject(response); 
    JSONArray jsonArray = jsonObj.getJSONArray("markers"); 

：

StringRequest stringRequest = new StringRequest(Request.Method.POST, AppConfig.URL_Marker, 
       new Response.Listener<String>() { 
        @Override 
        public void onResponse(String response) { 

         try { 
          JSONArray jsonArray = new JSONArray(response); 


          for (int i = 0; i < jsonArray.length(); i++) { 
           jresponse = jsonArray.getJSONObject(i); 
           latitude = Double.parseDouble(jresponse.getString("lat")); 
           longitude = Double.parseDouble(jresponse.getString("lng")); 


           mMap.addMarker(new MarkerOptions() 
             .position(new LatLng(latitude,longitude)) 
             .icon(BitmapDescriptorFactory.fromResource(R.drawable.tram_48)) 
             .draggable(true)); 

          } 


         } catch (JSONException e) { 
          e.printStackTrace(); 
         } 
         //pDialog.dismiss(); 

        } 

       } 

Answer 1

あなたはこれを試すたいかもしれません。