Android: How to speed up load time, when retrieving XML info from a website?

[Powermax]

When I press a button, its supposed to retrieve data from a webpage and display it according to my layouts. It does this fine, but only if I click back, go back to my main activity(home activity) and press the button again.It takes forever to load the first time I press the button and sometimes doesn't work. But the second time is instant load[works fine].Here's the code - Three classes - HomeActivity.java, News.Java and MyNewsHandler.java\[code\]public class HomeActivity extends Activity{String username = " ";Button alog;Button news;Button forumTime;EditText usernameEntry;SharedPreferences preferences;ImageView image;TextView usernametv;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.home); forumTime = (Button)findViewById(R.id.timeButton); news = (Button) findViewById(R.id.newsButton); // <--- Heres the problem alog = (Button) findViewById(R.id.alogButton); usernameEntry = (EditText) findViewById(R.id.username); //For news button OnClickListener newsListener = new OnClickListener() { public void onClick(View v) { Intent intent = new Intent(HomeActivity.this, News.class); startActivity(intent); } }; //Attaching listeners //forumTime.setOnClickListener(timeListener); //alog.setOnClickListener(alogListener); news.setOnClickListener(newsListener);}public void display(String string){ Toast.makeText(getBaseContext(), string, 300000).show();}\[/code\]}\[code\]public class MyNewsHandler extends DefaultHandler{private Boolean inTitle = false;private Boolean inDescription = false;private Boolean inItem = false;private Boolean inCategory = false;static public ArrayList<String> title = new ArrayList<String>(), description = new ArrayList<String>(), category = new ArrayList<String>();private StringBuilder buff = null;// All methods auto called in this order - start, characters, end/* * Called when an xml tag starts * imgView.setImageResource(R.drawable.newImage); */@Overridepublic void startElement(String uri, String localName, String qName,Attributes attributes) { if (inItem) { if (localName.equals("title")) { inTitle = true; buff = new StringBuilder(); } if (localName.equals("description")) { inDescription = true; buff = new StringBuilder(); } if (localName.equals("category")) { inCategory = true; buff = new StringBuilder(); } } if (localName.equals("item")) { inItem = true; }}/* * Called when an xml tag ends */@Overridepublic void endElement(String uri, String localName, String qName)throws SAXException { if (!inTitle && !inDescription && !inCategory) { inItem = false; } else { if (inTitle) { String check = buff.toString().trim(); title.add(check); inTitle = false; buff = null; } if (inDescription) { String check2 = buff.toString().trim(); String array []; int index = 0; if (check2.contains("/>")) { array = check2.split("/>"); index = check2.indexOf("10;"); description.add(array[array.length - 1].trim()); } else description.add(check2); //description.add(array[1]); inDescription = false; buff = null; } if(inCategory) { String check = buff.toString().trim(); category.add(check); inCategory = false; buff = null; } }}/* * Called to get tag characters */@Overridepublic void characters(char ch[], int start, int length) { if (buff != null) { for (int i = start; i < start + length; i++) { buff.append(ch); } }}\[/code\]}\[code\]public class News extends ListActivity{String url;TextView text1;TextView text2;static ImageView img;// newsList contains the list items static ArrayList<HashMap<String, Object>> newsList = new ArrayList<HashMap<String, Object>>();// to store drawable id'sstatic HashMap<String, Integer> images = new HashMap<String, Integer>();public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); //Load xml containing image view and a linear layout with 2 textviews setContentView(R.layout.aloglistview); img = (ImageView)findViewById(R.id.imageView2); text1 = (TextView) findViewById(R.id.text1); text2 = (TextView) findViewById(R.id.text2); // url we are retrieving from url = "http://services.runescape.com/m=news/latest_news.rss"; HttpClient httpclient = new DefaultHttpClient(); HttpGet httpget = new HttpGet(url); String result = ""; // result of http Post try { // Execute HTTP get Request HttpResponse response = httpclient.execute(httpget); // Extract the page content returned from the response BufferedReader in = new BufferedReader(new InputStreamReader( response.getEntity().getContent())); StringBuffer sb = new StringBuffer(""); String line = ""; String NL = System.getProperty("line.separator"); while ((line = in.readLine()) != null) { sb.append(line + NL); } in.close(); result = sb.toString(); // resulting content of the page } catch (ClientProtocolException e) { Log.d("ERROR", "ClientProtocolException=" + e); System.err.println("ClientProtocolException=" + e); } catch (IOException e) { Log.d("ERROR", "IOException=" + e); System.err.println("IOException=" + e); } try { //Parse the resulting page Xml.parse(result, new MyNewsHandler()); } catch (SAXException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } //needs to match formulate list thing SimpleAdapter adapter = new SimpleAdapter(this, newsList, R.layout.newsitem, new String[] { "Title", "Description", "Image"}, new int[] { R.id.textnews1, R.id.textnews2, R.id.imageView2}); populateList(); //Add all items to the newslist setListAdapter(adapter);}public void populateList(){ //Method to add to images hashmap initMap(); //reset each time the list is populated newsList = new ArrayList<HashMap<String, Object>>(); //Display 10 items for (int i = 0; i < 11; i++) { HashMap<String, Object> temp = new HashMap<String, Object>(); String title = MyNewsHandler.title.get(i); String category = MyNewsHandler.category.get(i); //default drawable int drawable = R.drawable.item; //Match title text to hash keys to set correct image for (Map.Entry<String, Integer> entry : images.entrySet()) { String key = entry.getKey(); Object value = http://stackoverflow.com/questions/10423984/entry.getValue(); if(category.contains(entry.getKey())) { drawable = entry.getValue(); break; } else drawable = R.drawable.item; } temp.put("Title", title); temp.put("Description", " " + MyNewsHandler.description.get(i)); temp.put("Image",drawable); newsList.add(temp); }}public void display(String string){ Toast.makeText(getBaseContext(), string, 1000202).show();}public void initMap(){ images.put("Behind the Scenes News",R.drawable.behindthescenes); images.put("Customer Support News",R.drawable.customerservice); images.put("Game Update News",R.drawable.gameupdate); images.put("Website News",R.drawable.devblog); images.put("Technical News",R.drawable.technicalnews);}\[/code\]}Sorry the code is so long.. The problem is it works (ha..), but it doesn't load instantly when i want it to the first time.It does this:Start app> hit news button> "doesnt load, blank screen"but it works when I do this:start app> hit news button> hit back> hit news button> "instantly loads" I followed a suggestion where I pre-parsed before hitting the button, also did another attempt where I got rid of images altogether(thinking that might be the delay). No difference. Still the same behaviour.Any suggestion is appreciated!