CLLocation Manager Delegates Not Called? - ios

Question

I have made one demo for getting Current Location.
I have used .GPX file for my current Location.
I have used Delegates method of CLLocation Method.
I have Also use Key "Privacy - Location When In Use Usage Description" in my plist file.
I know this question already asked so many time but could not able to get result.
code is
#import "ViewController.h"
#import <CoreLocation/CoreLocation.h>
#import <MapKit/MapKit.h>
#interface ViewController ()<CLLocationManagerDelegate,MKMapViewDelegate>
#property (nonatomic,assign)CLLocationCoordinate2D cordinateLocation;
#property (nonatomic,strong)MKPointAnnotation *point;
#property (nonatomic,weak)IBOutlet MKMapView *mapView;
#end
#implementation ViewController
CLLocationManager *locationManager;
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
locationManager = [[CLLocationManager alloc]init];
locationManager.delegate = self;
self.mapView.delegate = self;
[self updateCurrentLocation];
}
- (void)updateCurrentLocation {
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
if ([locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[locationManager requestWhenInUseAuthorization];
}
[locationManager startUpdatingLocation];
}
//-(void)getCurrentLocation
//{
// [locationManager requestWhenInUseAuthorization];
// locationManager.desiredAccuracy = kCLLocationAccuracyBest;
// [locationManager startUpdatingHeading];
// [locationManager startUpdatingLocation];
//
//}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
NSLog(#"didFailWithError: %#", error);
UIAlertController *errorAlert =[UIAlertController alertControllerWithTitle:#"Error" message:#"error reported" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *alertStyle = [UIAlertAction actionWithTitle:#"OK" style:UIAlertActionStyleDefault handler:nil];
[errorAlert addAction:alertStyle];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations
{
CLLocation *updatedLocation = [locations lastObject];
if(updatedLocation != nil)
{
self.cordinateLocation=CLLocationCoordinate2DMake(updatedLocation.coordinate.latitude, updatedLocation.coordinate.longitude);
[manager stopUpdatingLocation];
[self setCurrentLocationFocus];
}
else{
NSLog(#"Can't access desire location");
}
}
-(void)setCurrentLocationFocus{
MKCoordinateRegion region;
region.center = self.cordinateLocation;
//Adjust span as you like
MKCoordinateSpan span;
span.latitudeDelta = 1;
span.longitudeDelta = 1;
region.span = span;
[self.mapView setRegion:region animated:YES];
///Drop the pin on Current Locatio ////
self.point = [[MKPointAnnotation alloc] init];
self.point.coordinate = self.cordinateLocation;
self.point.title = #"FlockStation";
self.point.subtitle = #"It Department";
[self.mapView addAnnotation:self.point];
//set a new camera angle
MKMapCamera *newCamera=[[MKMapCamera alloc] init];
[newCamera setCenterCoordinate:self.cordinateLocation];
[newCamera setPitch:60.0]; ///For zooming purpose///
[newCamera setHeading:90]; ///For Compass Purpose ///
[newCamera setAltitude:100.0]; ///On which height you want to see your map ///
[self.mapView setCamera:newCamera animated:YES];
}
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UIViewController *viewController = [mainStoryBoard instantiateViewControllerWithIdentifier:#"NewViewController"];
[self presentViewController:viewController animated:YES completion:nil];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateHeading:(CLHeading *)newHeading
{
// self.updatedHeading.text = [NSString stringWithFormat:#"%f",newHeading.magneticHeading];
}
Help Me guys not able to get location.Because delegates method is not calling.
Every Time it called this method.
- (void)locationManager:(CLLocationManager *)manager didFailWithError:`(NSError *)error

Answer 1

You need to check permission of location. then after you can call the delegate methods.
- (void)viewDidLoad {
[super viewDidLoad];
locationManager=[[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
[locationManager requestWhenInUseAuthorization];
}
if ([CLLocationManager locationServicesEnabled]){
NSLog(#"Location Services Enabled");
if ([CLLocationManager authorizationStatus]==kCLAuthorizationStatusDenied){
alert = [[UIAlertView alloc] initWithTitle:#"Permission Denied"
message:#"To re-enable, please go to Settings and turn on Location Service for this app."
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
}
}
}
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
CLLocation *currentLocation = newLocation;
txtlocations.text = [NSString stringWithFormat:#"%f & %f",currentLocation.coordinate.latitude, currentLocation.coordinate.longitude];
}

Answer 2

Tried with your code with little changes and its working fine.
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self updateCurrentLocation];
}
- (void)updateCurrentLocation {
if([CLLocationManager locationServicesEnabled] &&
[CLLocationManager authorizationStatus] != kCLAuthorizationStatusDenied) {
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate=self;
locationManager.desiredAccuracy=kCLLocationAccuracyBest;
locationManager.distanceFilter=kCLDistanceFilterNone;
[locationManager requestWhenInUseAuthorization];
[locationManager startMonitoringSignificantLocationChanges];
[locationManager startUpdatingLocation];
// show the map
} else {
// show error
}
}