iOS 7 Significant location change launch after termination

Question

My app automatically wakes up after termination when new location data arrives on iOS 6, but not on iOS 7.

[[UIApplication sharedApplication] setBackgroundRefreshStatus] is UIBackgroundRefreshStatusAvailable.

In Info.plist I set UIBackgroundModes with value "location".

CLLocationManager started this way:

- (void) start {
  if (locationManaher == nil) {
    locationManager = [[CLLocationManager alloc] init];
    locationManager.delegate        = self;
    locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters;
  }

  [locationManager startMonitoringSignificantLocationChanges]
}

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

  CLLocationCoordinate2D newCoordinate = newLocation.coordinate;
  CLLocationCoordinate2D oldCoordinate = oldLocation.coordinate;

  if (newCoordinate.latitude == oldCoordinate.latitude && newCoordinate.longitude == oldCoordinate.longitude) return;

  float distance = [newLocation distanceFromLocation:oldLocation];

  if (distance < distanceFilter) {
    //send to server 
  }
}

Does anybody know where is a problem?

BTW, I don't believe you need that background mode setting [for significant change service](https://developer.apple.com/library/ios/documentation/general/Reference/InfoPlistKeyReference/Articles/iPhoneOSKeys.html#//apple_ref/doc/uid/TP40009252-SW22). That's only needed for standard location services. — Rob, Sep 27 '13 at 12:05
Possible dublicated http://stackoverflow.com/questions/18946881/background-location-services-not-working-in-ios-7 — Igor, Nov 08 '13 at 12:22
It's iOS 7 feature. http://stackoverflow.com/questions/18212171/application-doesnt-launch-with-location-key-after-a-significant-location-change — Artem, Nov 23 '13 at 08:32

score 4 · Answer 1 · answered Nov 04 '13 at 08:43

4

It is 7.0 iOS feature, if user closes the app manually (from home button double click), the application doesn't triggers on location change.

answered Nov 04 '13 at 08:43

Tatiana

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I couldn't see any kinds of information in Location programming guide. Could you please provide a link for it? – kkocabiyik Jan 04 '14 at 12:46

score 1 · Answer 2 · answered Sep 27 '13 at 11:27

1

The locationManager:didUpdateToLocation:fromLocation: method is deprecated, effective iOS 6. You should use now locationManager:didUpdateLocations:.

answered Sep 27 '13 at 11:27

Rob

415,655
72
787
1,044

In my code I use both methods: 1. - (void) locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations 2. - (void) locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation – Artem Sep 27 '13 at 13:15

iOS 7 Significant location change launch after termination

2 Answers2

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