Android - retrieving the xml data from the url

[hellokitty]

I would like to enable progress bar in xmlparsing example actually it does not retrieve the xml data from the url.\[code\]\\this is my main activity\\public class act extends Activity {\\the progress bar have enable on the click of the button Button b; public ProgressDialog mDialog; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); b=(Button)findViewById(R.id.button1); b.setOnClickListener(new OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub new GetTask().execute(); } });}\[/code\]