发出前向地理编码多个地址

Question

I am connecting to a remote web service which basically returns an XML back. I am then parsing that XML into a Property object (think real state sort of thing)

But now, the web service returns a postal code for each property alone. It does not provide a coordinate which is what I need to place an annotation in the map. I am able to geocode an address provided a postal code. However, my problem is it is not allowing me to do multiple requests

Here's my code

- (void)processProperties:(Property *)property {

    [geocoder geocodeAddressString:property.postalCode
                 completionHandler:^(NSArray* placemarks, NSError* error){
                     placemark = [placemarks lastObject];
                     for (CLPlacemark* aPlacemark in placemarks)
                     {
                         [sublet setLatitude:aPlacemark.location.coordinate.latitude];
                         [sublet setLongitude:aPlacemark.location.coordinate.longitude];  
                     }
                 }];
}


- (void)addAnnotations:(NSArray *)objects {
    CLLocationDegrees lat;
    CLLocationDegrees longitude;
    CLLocationCoordinate2D mCoords;
    NSString *fullAddress;

    // Add the annotations found nearby
    for (Property *property in objects) {

        [self processProperties:property];
        lat = property.latitude;
        longitude = property.longitude;

        fullAddress = [NSString stringWithFormat:@"%@ %@ %@", property.houseNumber, @" ", property.streetName];
        [self createAnnotationWithCoords:mCoords :fullAddress :[NSString stringWithFormat:@"$%.2f", property.rent]];
    }
    zoomLevel = 0.1;
    mCoords = CLLocationCoordinate2DMake(lat,longitude);
    MKCoordinateRegion region = MKCoordinateRegionMake(mCoords,MKCoordinateSpanMake(zoomLevel,zoomLevel));

   [self.mapView setRegion:region animated:YES];
}

For some reason it's just geocoding 1 property. Is not going through the loop accordingly.

Any ideas folks?

Answer 1

Use this on your Forward Geo Function. geocoder needs to be release and initialized again to start a new address, hope this helps.

- (void)processProperties:(Property *)property { 
CLGeocoder *geocoder = [[CLGeocoder alloc] init]; 
[geocoder geocodeAddressString:property.postalCode
             completionHandler:^(NSArray* placemarks, NSError* error){
                 placemark = [placemarks lastObject];
                 for (CLPlacemark* aPlacemark in placemarks)
                 {
                     [sublet setLatitude:aPlacemark.location.coordinate.latitude];
                     [sublet setLongitude:aPlacemark.location.coordinate.longitude];  
                 }
                 [geocoder release];
             }];
  }