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

Question

Currently i am developping an android application and i'm using an xml feed that i take from the internet.the problem is when my phone doesn't have an internet connection, my application crashs. I would like to obtain my xml file and put it in the assets.

My question is : is it possible ? And if yes, what's the best solution to do it ?

Answer 1

1. Check for 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)
               for (int i = 0; i < 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 to any 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)
       {
       }
       }
       }