locationManager not working on iOS 9

Question

I have a problem with the refresh information on your GPS position. The function given by me "locationManager" when you click the button does not refresh the information in the "Label".

My code: http://pastebin.com/hWeq6gTS

I am a novice programmer iOS. Please help.

Answer 1

The issue that is not always obvious with the location services is that you have to have one of these two keys in your Info.plist:

1. NSLocationWhenInUseUsageDescription
2. NSLocationAlwaysUsageDescription

Then, when starting updating of your position, don't forget to request permissions first (again, depending on your requirements (when in use/always):

1. [self.locationManager requestWhenInUseAuthorization]
2. [self.locationManager requestAlwaysAuthorization]

Answer 2

Add these two properties in info.plist

'NSLocationAlwaysUsageDescription' and below property

Create CocoaTouch Class 'LocationManager' inherit from NSObject like below class.

Singleton Location Manager Class .h

#import <Foundation/Foundation.h>

@interface LocationManager : NSObject <CLLocationManagerDelegate>
{
    CLLocationManager *locationManager;
}

@property (strong, nonatomic) NSString *longitude;
@property (strong, nonatomic) NSString *latitude;
@property (strong, nonatomic) CLLocation *currentLocation;

+ (instancetype)sharedInstance;

@end

Implementation here .m

#import "LocationManager.h"

@implementation LocationManager

- (id) init
{
    self = [super init];

    if (self != nil)
    {
        [self locationManager];
    }
    return self;
}


+ (instancetype)sharedInstance
{
    static LocationManager *sharedInstance = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sharedInstance = [[LocationManager alloc] init];
        // Do any other initialisation stuff here
    });
    return sharedInstance;
}

- (void) locationManager
{
    if ([CLLocationManager locationServicesEnabled])
    {
        locationManager = [[CLLocationManager alloc] init];
        locationManager.delegate = self;
        locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        locationManager.distanceFilter = kCLDistanceFilterNone;
        if ([locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)])
        {
            [locationManager requestWhenInUseAuthorization];
        }
        [locationManager startUpdatingLocation];
    }
    else{

        UIAlertView *servicesDisabledAlert = [[UIAlertView alloc] initWithTitle:@"Location Services Disabled" message:@"You currently have all location services for this device disabled. If you proceed, you will be showing past informations. To enable, Settings->Location->location services->on" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:@"Continue",nil];
        [servicesDisabledAlert show];
        [servicesDisabledAlert setDelegate:self];
    }
}

- (void)requestWhenInUseAuthorization
{
    CLAuthorizationStatus status = [CLLocationManager authorizationStatus];

    // If the status is denied or only granted for when in use, display an alert
    if (status == kCLAuthorizationStatusAuthorizedWhenInUse || status == kCLAuthorizationStatusDenied) {
        NSString *title;
        title = (status == kCLAuthorizationStatusDenied) ? @"Location services are off" : @"Background location is not enabled";
        NSString *message = @"To use background location you must turn on 'Always' in the Location Services Settings";

        UIAlertView *alertViews = [[UIAlertView alloc] initWithTitle:title
                                                             message:message
                                                            delegate:self
                                                   cancelButtonTitle:@"Cancel"
                                                   otherButtonTitles:@"Settings", nil];
        [alertViews show];
    }
    // The user has not enabled any location services. Request background authorization.
    else if (status == kCLAuthorizationStatusNotDetermined) {
        [locationManager requestWhenInUseAuthorization];
    }
}


#pragma mark - CLLocationManagerDelegate

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
    NSLog(@"didFailWithError: %@", error);
    UIAlertView *errorAlert = [[UIAlertView alloc]
                               initWithTitle:@"Error" message:@"Failed to Get Your Location" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
//    [errorAlert show];
}

-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
    switch (status) {
        case kCLAuthorizationStatusNotDetermined:
        case kCLAuthorizationStatusRestricted:
        case kCLAuthorizationStatusDenied:
        {
            // do some error handling
        }
            break;
        default:{
            [locationManager startUpdatingLocation];
        }
            break;
    }
}

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

    CLLocation *location;
    location =  [manager location];
    CLLocationCoordinate2D coordinate = [location coordinate];
    _currentLocation = [[CLLocation alloc] init];
    _currentLocation = newLocation;
    _longitude = [NSString stringWithFormat:@"%f",coordinate.longitude];
    _latitude = [NSString stringWithFormat:@"%f",coordinate.latitude];
    //    globalObjects.longitude = [NSString stringWithFormat:@"%f",coordinate.longitude];
    //    globalObjects.latitude = [NSString stringWithFormat:@"%f",coordinate.latitude];
}


@end

import

#import "LocationManager.h"

in your AppDelegate.h

and call that in your AppDelegate.m's like this

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    [LocationManager sharedInstance];
    return true;
}

Then just get [LocationManager sharedInstance].longitude or latitude for updated lat long.