CODEWITHSUNDEEP
iosobjective-cmultithreadingcallbackcllocationmanager
Nikita
Nikita

Reputation: 1853

CLLocationManager does not call back method in delegate

CLLocationManager does not call back method: 

locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status;

after user's permission.

I'm allocating CLLocationManager instance in singleton class (sort of manager), assigning delegate to self, all is looking fine, but is not working.

Also I have many multithreading logic in my app, and I think, the problem is a deadlock or some other problem related to multithreading.

How can I reveal what is the problem.

P.S. I have also tried to call 

startMonitoringSignificantLocationChanges;

on main thread and this does not help.

Upvotes: 2

Views: 1175

Answers (3)

zevarito
zevarito

Reputation: 362

alloc/init CLocationManager as soon as viewDidLoad gets called worked for me.

- (void)viewDidLoad {
    [super viewDidLoad];

    locationManager = [[CLLocationManager alloc] init];
}

Upvotes: 0

Can Poyrazoğlu
Can Poyrazoğlu

Reputation: 34780

Do you have a strong reference to the CLLocationManager? It should be a strong property @property CLLocationManager *myManager; or an ivar (instance variable) inside your class' implementation. If you are instantiating the CLLocationManager inside a function/method, and not assinging any reference, it will be released as soon as you finish that function.

Have a strong reference to the instance.

Upvotes: 0

Nikita
Nikita

Reputation: 1853

Ok, after hours of trying things, I have found this: post.

The solution is to allocate CLLocationManager on main thread.

Upvotes: 2

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