CODEWITHSUNDEEP
objective-cios7xcode5cllocationmanager
Thomas Wadney
Thomas Wadney

Reputation: 11

CLLocationManager not getting location

Hi I am having trouble using CLLocationManager to find the current user location. Here is my code:

- (void)viewDidLoad {

    [super viewDidLoad];
    locationManager = [[CLLocationManager alloc] init];
}

- (IBAction)pressed:(id)sender {

    locationManager.delegate = self;
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;

    [locationManager startUpdatingLocation];
}


#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 didUpdateToLocation:(CLLocation   *)newLocation fromLocation:(CLLocation *)oldLocation
{
    [locationManager stopUpdatingLocation];

    NSLog(@"didUpdateToLocation: %@", newLocation);
    CLLocation *currentLocation = newLocation;

    if (currentLocation != nil) {
        NSLog(@"%.8f", currentLocation.coordinate.longitude);
        NSLog(@"%.8f", currentLocation.coordinate.latitude);
    }
}

When I run this code, nothing happens at all. There is no reaction in the debugger. As I understand, didUpdateToLocation is deprecated in iOS6 but I thought it was still usable. If anyone can tell me what I am doing wrong or suggest an alternative please let me know. Thanks!

Upvotes: 0

Views: 416

Answers (1)

jplego
jplego

Reputation: 91

How'd you define stuff in your .h file? I assume like:

#import <UIKit/UIKit.h>
#import <CoreLocation/CLLocationManager.h>
#import <CoreLocation/CLLocationManagerDelegate.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate, CLLocationManagerDelegate>

@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) CLLocationManager *locationManager;

@end

And the main .m file I ran:




#import "AppDelegate.h"


@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];

    self.locationManager = [[CLLocationManager alloc] init];

    self.locationManager.delegate = self;
    self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;

    [self.locationManager startUpdatingLocation];

    return YES;
}


#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 didUpdateToLocation:(CLLocation   *)newLocation fromLocation:(CLLocation *)oldLocation
{
    [self.locationManager stopUpdatingLocation];

    NSLog(@"didUpdateToLocation: %@", newLocation);
    CLLocation *currentLocation = newLocation;

    if (currentLocation != nil) {
        NSLog(@"%.8f", currentLocation.coordinate.longitude);
        NSLog(@"%.8f", currentLocation.coordinate.latitude);
    }
}

Here's the output on the simulated iOS:

2014-08-12 13:36:28.933 tester[5577:60b] Application windows are expected to have a root view controller at the end of application launch
2014-08-12 13:36:35.237 tester[5577:60b] didUpdateToLocation: <+37.78******,-122.40******> +/- 5.00m (speed -1.00 mps / course -1.00) @ 8/12/14, 1:36:35 PM Central Daylight Time
2014-08-12 13:36:35.237 tester[5577:60b] -122.40******
2014-08-12 13:36:35.238 tester[5577:60b] 37.78******

Upvotes: 1

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