Keep getting NULL when updatingtonewlocation - ios

Question

- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
NSDateFormatter * formatter = [[[NSDateFormatter alloc] init] autorelease];
[formatter setDateFormat:#"yyyy-MM-dd HH:mm"];
NSString *latitude = [NSString stringWithFormat:#"%f", newLocation.coordinate.latitude];
NSString *longitude = [NSString stringWithFormat:#"%f", newLocation.coordinate.longitude];
NSString *stringFromDate = [formatter stringFromDate:newLocation.timestamp];
resultsLabel.text = [NSString stringWithFormat:#"(%#) %# Location %.06f %.06f %#", ([UIApplication sharedApplication].applicationState == UIApplicationStateBackground) ? #"bg" : #"fg", resultsLabel.tag == 0 ? #"gps:" : #"sig" , newLocation.coordinate.latitude, newLocation.coordinate.longitude, [formatter stringFromDate:newLocation.timestamp]];
NSLog(#"%#", resultsLabel.text);
LocationTestAppDelegate * appDelegate = (LocationTestAppDelegate *)[UIApplication sharedApplication].delegate;
[appDelegate log:resultsLabel.text];
}
But i get this as output.
(null)
on :
NSLog(#"%#", resultsLabel.text);
Does anyone know what im doing wrong?
- (id) initWithLabel:(UILabel*)label
{
resultsLabel = label;
return [super init];
}
And in my delegate i set the resultLabel here:
- (void) log:(NSString*)msg
{
NSDateFormatter * formatter = [[[NSDateFormatter alloc] init] autorelease];
[formatter setTimeStyle:NSDateFormatterMediumStyle];
NSString * logMessage = [NSString stringWithFormat:#"%# %#", [formatter stringFromDate:[NSDate date]], msg];
NSString * fileName = [self locationPath];
FILE * f = fopen([fileName UTF8String], "at");
fprintf(f, "%s\n", [logMessage UTF8String]);
fclose (f);}
EDIT
I deleted the GPS functionality.
Does anyone know how a proper NSLog would be in the newlocation. longitude latitude timestamp?
EDIT 2
I set the resultlabel here:
#interface LocationDelegate : NSObject <CLLocationManagerDelegate>
{
UILabel * resultsLabel;
NSString * _phonenumber;
}
- (id) initWithLabel:(UILabel*)label;
//-(id)initWithDictionary:(NSDictionary *)dict;
//-(id)initWithName:(NSString *)aName;
//-(NSDictionary *)toDictionary;
#property (nonatomic , retain) NSString *phonenumber;

Answer 1

Your init code is strange. This is more usual:
- (id) initWithLabel:(UILabel*)label
{
if (self = [super init]) {
resultsLabel = label; // Or maybe _resultsLabel, depending on your code
}
return self;
}
And then access what I presume is an instance variable through self.resultsLabel.
Presumably your problem is that resultsLabel is already nil when you try to set it's text. Sending a message to nil does nothing, not even give an error.