progressbar in UIAlertview issue while parsing - iphone

Question

I want to resign UIAlertView containing activity indicator. I am putting following code. It is working while loading data but the UIalertview is not resigning after successful parsing. What condition should I give here???
- (void) updateFilterProgress{
NSAutoreleasePool *pool = [NSAutoreleasePool new];
UIAlertView *alert = [[[UIAlertView alloc] initWithTitle:#"Loading..." message:nil delegate:self cancelButtonTitle:nil otherButtonTitles: nil] autorelease];
[alert show];
UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
// Adjust the indicator so it is up a few pixels from the bottom of the alert
indicator.center = CGPointMake(alert.bounds.size.width / 2, alert.bounds.size.height - 50);
[indicator startAnimating];
[alert addSubview:indicator];
[indicator release];
[pool release];
}
ON my button click event I put following code
// **EDIT==1**
[NSThread detachNewThreadSelector:#selector(updateFilterProgress) toTarget:self withObject:nil];toTarget:self withObject:nil]; //for calling updateFilterProgress
NSString *url = [NSString stringWithFormat:#"http://....url...../hespdirectory/phpsqlsearch_genxml.php?lat=%f&radius=%f&lng=%f",lati,longi,radius];
//NSLog(#"NSString *url");
NSLog(#"%#", url);
//NSString *escapedUrl = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]
NSURL *URL = [NSURL URLWithString:url];
NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithContentsOfURL:URL];
//Initialize the delegate.
XMLParser *parser = [[XMLParser alloc] initXMLParser];
//Set delegate
[xmlParser setDelegate:parser];
//Start parsing the XML file.
BOOL success = [xmlParser parse];
if(success)
{ **//EDIT==2**
[alert dismissWithClickedButtonIndex:0 animated:YES]; //for resigning alertview
for (int i = 0; i < [appDelegate.markers count]; i++)
{
//marker *aMarker = [[marker alloc] init];
marker *aMarker = [appDelegate.markers objectAtIndex:i];
location.latitude = [aMarker.lat floatValue];
location.longitude =[aMarker.lng floatValue];
AddressAnnotation *annobj = [[AddressAnnotation alloc] initWithCoordinate:location];
annobj.title = aMarker.name;
[mapView addAnnotation:annobj];
[annobj release];
}
}
I want to resign this UIAlertView containing activity indicator.......

Answer 1

Set your UIAlertView and ActivityIndicator (and all objects inside the alert view) as members of your class file.
Then, where you'd normally release these items (and where you want to dismiss the alert) you can call this:
[myAlertView dismissWithClickedButtonIndex:0 animated:YES];
This has the same effect as if though the user clicked the cancel button on it, which is perfectly acceptable.
Hope this helps!