Question

Please take it easy on me. I’m a newbie and is trying to learn mapkit. Just wondering if you can help me find my way with this one.. I have a function which find the coordinate in AppViewController.m

• (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
  {

  CLLocationCoordinate2D location = [newLocation coordinate];
  NSString *lat = [[NSString alloc] initWithFormat:@”%f”, loc.latitude];
  latitude.text = lat;
  …

}

My question is, is there a way I can access the variable lat, say something like declaring it as a global varaible, from function – (void) viewDidLoad { … }

This might sound a stupid question for most of you, but please give me a hint.. I’ve been reading about singleton.. but couldn’t understand how I can use implement this in this one.

Kind Regards,
David

Answer 1

You have to make lat an instance variable. Declare it in your class’s @interface section, then you can access it from any method inside the class.

@interface AppViewController : UIViewController
{
    NSString *lat;
}

...

@end