java - Take an xml feed from the internet and put it in my assets -

currently developping android application , i'm using xml feed take internet.the problem when phone doesn't have internet connection, application crashs. obtain xml file , put in assets.

my question : possible ? , if yes, what's best solution ?

1. check network connection:

       public static boolean isconnectedtointernet(context context) {     connectivitymanager connectivity = (connectivitymanager) context.getsystemservice(context.connectivity_service);     if (connectivity != null)     {         networkinfo[] info = connectivity.getallnetworkinfo();         if (info != null)             (int = 0; < info.length; i++)                 if (info[i].getstate() == networkinfo.state.connected)                 {                     return true;                 }     }     return false; } 

2. download xml string

     public string getxmlstring(string url) {      try     {         url url1 = new url(url);         urlconnection tc = url1.openconnection();         tc.setconnecttimeout(timeout);         tc.setreadtimeout(timeout);         bufferedreader br = new bufferedreader((new inputstreamreader(tc.getinputstream())));         stringbuilder sb = new stringbuilder();         string line;         while ((line = br.readline()) != null)         {             sb.append(line + "\n");         }         br.close();         return sb.tostring();     } catch (exception e)     {         log.d("error", "in xmldownloading");     }      return null; } 

3. save string directory in sd card:

      private void writestringtotextfile(string s, string f) {      file sdcard = environment.getexternalstoragedirectory();     file dir = new file(sdcard.getabsolutepath());     dir.mkdirs();      file file = new file(dir, f);     try     {         fileoutputstream f1 = new fileoutputstream(file, false);         printstream p = new printstream(f1);         p.print(s);         p.close();         f1.close();     } catch (filenotfoundexception e)     {     } catch (ioexception e)     {     }     }     }