CODEWITHSUNDEEP
iosobjective-ciphonecocoa-touchcllocationmanager
FS.O
FS.O

Reputation: 401

Significant location changes monitoring stops while in background

I have an app that checks if the user approaches one of my client's stores and when he does, the app sends him a notification telling him he is near a store.

Of course I'm using geofencing (locationManager: didEnterRegion) and I have more than 20 stores so on locationManager: didUpdateLocations I'm sorting the 20 nearest stores to the user.

I'm configuring my CLLocationManager this way on the AppDelegate and then setting my ViewController locationManager property to the object (because I want to use the same locationManager on the AppDelegate as well:

-(void)configureLocationManager
{
    //Initializing "locationManager"'s(CLLocationManager)
    self.locationManager=[[CLLocationManager alloc] init];
    //Setting "locationManager"'s(CLLocationManager)'s delegate to "monitorLocationVC"(monitorLocationViewController)
    self.locationManager.delegate=self.monitorLocationVC;
    //Setting "locationManager"'s(CLLocationManager)'s distance filter to 10
    self.locationManager.distanceFilter=10;
    //Setting "locationManager"'s(CLLocationManager)'s activityType to navigation
    self.locationManager.activityType=CLActivityTypeAutomotiveNavigation;
    //setting "locationManager"'s(CLLocationManager) desiredAccuracy to "best"
    self.locationManager.desiredAccuracy=kCLLocationAccuracyBest;
    //Setting "locationManager"'s(CLLocationManager)'s pausesLocationUpdatesAutomatically to NO
    self.locationManager.pausesLocationUpdatesAutomatically=NO;
    //If OS version is 9 or above - setting "allowsBackgroundLocationUpdates" to YES
    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 9) {
        self.locationManager.allowsBackgroundLocationUpdates = YES;
    }
}

Until now everything worked fine, but now I see that the app started not to notify for stores in the background after a few minutes it is running (notifies about 15 minutes and then suddenly stops).

Note: Sometimes when I launch my app from the home screen (just a normal launch) the app crashes, could it be the problem?

Thank you!

Upvotes: 1

Views: 399

Answers (1)

Marouane Lanouari
Marouane Lanouari

Reputation: 487

check this documentation and add background fetch mode: documentation apple

and add this code:

if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)])
{
    [self.locationManager requestAlwaysAuthorization];
}
if ([self.locationManager respondsToSelector:@selector(setAllowsBackgroundLocationUpdates:)]) {
    [self.locationManager setAllowsBackgroundLocationUpdates:YES];
}

Upvotes: 0

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