Question

Update 1

main.java file

//how would i return those errors on the main.java file? so that i can display on the UI.
directory_listings = obj.get_webpage_source();

end

I am new to Android mobile application development. I would like to know, how can I handle the exception like HttpConnection related exceptions or any other important exceptions.

i am thinking of top of my head:

server is down
file not exists
no data found

my code is here:

the below code is in its own java class and i am calling this code from main.java

public class Get_Webpage {

public String get_webpage_source(){

 HttpClient client = new DefaultHttpClient();
 HttpGet request = new HttpGet(parsing_url);
 HttpResponse response = null;
 ...............
 ...............
 ...............
}
}

Answer 1

you need to catch all the below exception when reading file from the web.

 try
  {
  }
  catch (SocketTimeoutException e) {
            e.printStackTrace();
            return "error";
        }
        catch (ConnectTimeoutException e)
        {
            e.printStackTrace();
            return "error"; 
        }
        catch (ClientProtocolException e)
        {
            e.printStackTrace();
            return "error";
        }
        catch (IOException e)
        {
           e.printStackTrace();
           return "error";
        } 
        finally {
            client.getConnectionManager().shutdown();
        }