Convert files xls to pdf with Android and http apache mime -

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that such night, write ask if , coregir following code, right through listview , presslong, took path of file, try , turn service: of: http://www.convertapi.com/excel-pdf-api

i have not use webview, or use hidden way thank

code is:

mprefs = getsharedpreferences("rutapath", context.mode_private);                         string rutasave = mprefs.getstring("externa", "");                          string resultcode = "0";                          httppost httppost = new httppost("http://do.convertapi.com/excel2pdf/json");                          multipartentity entity = new multipartentity( httpmultipartmode.browser_compatible );                          // file parameters                         file=new file(rutasave+"prueba.xls");                        //toast.maketext(this,"cargando: " +rutasave+"prueba.xls",toast.length_short).show();                         outputdir=rutasave;                         entity.addpart("file", new filebody(file, "binary/octet-stream"));//"file"                          httppost.setentity( entity );                          httpclient httpclient = new defaulthttpclient();                        // return new boolean(true);//eliminar despues                         try {                             httpresponse response = httpclient.execute(httppost);                             header rcheader = response.getfirstheader("result");                             if(rcheader != null){                                  resultcode = rcheader.getvalue();                                  if("true".equals(resultcode)){                                       filesize = response.getfirstheader("filesize").getvalue();                                     filename = response.getfirstheader("outputfilename").getvalue();                                      //toast.maketext(this,"archivo: " +filename,toast.length_short).show();                                     httpentity hentity = response.getentity();                                     if(hentity != null){                                          inputstream istream = hentity.getcontent();                                         file file = new file(outputdir+filename+".pdf");//outputdir  file.separator                                         fileoutputstream ostream = new fileoutputstream(file);                                          byte[] b = new byte[1024];                                         int num = 0;                                         while( (num = istream.read(b, 0, b.length)) > 0)                                             ostream.write(b, 0, num);                                         istream.close();                                         ostream.flush();                                         ostream.close();                                         return new boolean(true);                                      }                                 }                             }                          } catch (clientprotocolexception e) {


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