Using a variable declared somewhere else in a different method - iphone

Question

I just started coding in Objective C, and am making an app that will track the users location, and send an alert with the latlng in it. This code isn't complete in the slightest, but I ran into a problem with trying to use the variable I created "lat" in the "viewDidLoad" for the alert. I declared the variable in the CLLocationManager delegate/method(I don't really know what it's called) and I don't know how to use it in other places.
- (void)viewDidLoad
{
locationManager =[[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
locationManager.distanceFilter = 100.0f;
[locationManager startUpdatingLocation];
UIAlertView *message = [[UIAlertView alloc] initWithTitle: #"Your current Latitude is:"
message:This is where I want to put the variable "lat"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[message show];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
-(void) locationmanager: (CLLocationManager *) manager
didUpdateToLocation: (CLLocation *) newLocation
fromLocation: (CLLocation *) oldLocation
{
NSString *lat = [[NSString alloc] initWithFormat: #"%g",newLocation.coordinate.latitude];
NSString *lng = [[NSString alloc] initWithFormat:#"%g", newLocation.coordinate.longitude];
}
Any help would be appreciated!

Answer 1

Simple solution.
Your ViewController .h should look something like this
#interface ViewController : UIViewController {
NSString *lat;
NSString *lng;
}
then this becomes
-(void) locationmanager: (CLLocationManager *) manager
didUpdateToLocation: (CLLocation *) newLocation
fromLocation: (CLLocation *) oldLocation
{
lat = [[NSString alloc] initWithFormat: #"%g",newLocation.coordinate.latitude];
lng = [[NSString alloc] initWithFormat:#"%g", newLocation.coordinate.longitude];
NSLog(lat);
NSLog(lng);
}
NSlog simple out puts to the console which is locate just below where you code
remove
UIAlertView *message = [[UIAlertView alloc] initWithTitle: #"Your current Latitude is:"
message:This is where I want to put the variable "lat"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[message show];
Because that will just show an alert as soon as the view is loaded
Hope this helps