ios day 19

CoreLocationController.h

#import <Foundation/Foundation.h>
#import "CoreLocation/CoreLocation.h"

@protocol CoreLocationControllerDelegate
@required
- (void)update:(CLLocation *)location;
- (void)locationError:(NSError *)error;
@end

@interface CoreLocationController : NSObject <CLLocationManagerDelegate>

@property (nonatomic, retain) CLLocationManager *locationManager;
@property (nonatomic, retain) id delegate;

@end

CoreLocationController.m

#import "CoreLocationController.h"
#import "CoreLocation/CoreLocation.h"

@implementation CoreLocationController

- (id)init {
  self = [super init];
	if(self != nil) {
		self.locationManager = [[CLLocationManager alloc] init];
		self.locationManager.delegate = self;
	}
	return self;
}

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
		[self.delegate update:newLocation];
}

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
		[self.delegate locationError:error];
}

@end

CoreLocationController2.h

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import "CoreLocationController.h"

@interface ViewController : UIViewController <CoreLocationControllerDelegate>
@property (weak, nonatomic) IBOutlet UILabel *lblLongitude;
@property (weak, nonatomic) IBOutlet UILabel *lblLatitude;
@property (weak, nonatomic) IBOutlet MKMapView *mapView;
@property (nonatomic, retain) CoreLocationController *locationController;

@end

ViewController1.h

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>

@interface ViewController : UIViewController
@property (weak, nonatomic) IBOutlet UILabel *lblLongitude;
@property (weak, nonatomic) IBOutlet UILabel *lblLatitude;
@property (weak, nonatomic) IBOutlet MKMapView *mapView;

@end

ViewController3.m

- (void)viewDidLoad
{
    [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
    
    self.mapView.showsUserLocation = YES;
    
    self.locationController = [[CoreLocationController alloc] init];
	self.locationController.delegate = self;
	[self.locationController.locationManager startUpdatingLocation];
}

ViewController4.m

- (void)update:(CLLocation *)location {
    self.lblLatitude.text= [NSString stringWithFormat:@"Latitude: %f", [location coordinate].latitude];
    self.lblLongitude.text = [NSString stringWithFormat:@"Longitude: %f", [location coordinate].longitude];
}

- (void)locationError:(NSError *)error {
    self.lblLatitude.text = [error description];
    self.lblLongitude.text = nil;
}

viewDidLoad.m

- (void)viewDidLoad
{
    [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
    
    self.mapView.showsUserLocation = YES;
}