Download MP3 file from server in sd card in Android -

i want download mp3 files server 1 one , save sd card folder. have no errors or exception mp3 not downloaded , not show in sd card. can how solve issue.here code.

if (imagename.endswith(mp3_pattern))                     {                         str_downloadurl = namespace + "/downloadfile/filename/" + imagename;                          log.e("#########  ", "str_downloadurl  = " + str_downloadurl);                         download_mp3file(str_downloadurl);                          strdownloadstatus = "1";                         dbhelper.update_downloadstatus(imagename, strdownloadstatus);                     }   void download_mp3file(final string fileurl) {          new asynctask<string, integer, string>()         {             @override             protected string doinbackground(string... arg0)             {                 int count;                 file file = new file(newfolder, system.currenttimemillis() + imagename);                 try                 {                     url url = new url(fileurl);                     urlconnection conexion = url.openconnection();                     conexion.connect();                     // useful can show tipical 0-100% progress bar                     int lenghtoffile = conexion.getcontentlength();                      // downlod file                     inputstream input = new bufferedinputstream(url.openstream());                     outputstream output = new fileoutputstream(file);                      byte data[] = new byte[1024];                      long total = 0;                      while ((count = input.read(data)) != -1) {                         total += count;                         // publishing progress....                         publishprogress((int) (total * 100 / lenghtoffile));                         output.write(data, 0, count);                     }                      output.flush();                     output.close();                     input.close();                 } catch (exception e) {                 }                 return  null;             }         }.execute();      } 

place breakpoint in inputstream object see there stream. debug output stream see results.