iOS8: Blue bar “is Using Your Location” appears shortly after exiting app

Question

I would like to get the blue bar when tracking in the background, but not when not.

My app uses location services all the time when active, so in iOS8 I use the

Answer 1

This is not a bug, you still have an active location manager somewhere in you app. Do you have a map view with showsUserLocation = YES for example? That could be it.

I went over my project thoroughly and when i stopped all location managers the bar disappeared when it should.

Answer 2

To show blue notification you need to add Privacy - Location When In Use Usage Description in Plist file (this is important, with Always Location the blue bar didn´t appear ever)

 self.locationManager.delegate = self;
 self.locationManager.requestWhenInUseAuthorization()
 self.locationManager.pausesLocationUpdatesAutomatically = true/false
 self.locationManager.allowsBackgroundLocationUpdates = true

then star the location: locationManager.startUpdatingLocation()

Also override methods:

 func locationManager(_ manager: CLLocationManager, didUpdateLocations
  locations: [CLLocation]) {
       print(manager.location?.coordinate.latitude ?? "No data")
 }


 func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
     if status == .authorizedWhenInUse {
         if CLLocationManager.isMonitoringAvailable(for: CLBeaconRegion.self) {
             if CLLocationManager.isRangingAvailable() {
                 // do stuff
                 print(manager.location?.coordinate.latitude ?? "No data")
                 locationManager.startUpdatingLocation()
             }
         }
     }
 }

Remember the import!!:

 import CoreLocation

And also remember the Delegate (CLLocationManagerDelegate):

 class ViewController: UIViewController, CLLocationManagerDelegate{

Answer 3

We frequently report things to Apple, and sometimes they actually act upon it. Exactly to prevent the blue bar from appearing shortly as described in the question, Apple has introduced a new property on CLLocationManager in iOS-9. Set it at the moment you know you will need the location in the background:

theLocationManager.allowsBackgroundLocationUpdates = YES;

or, in a backward compatible way:

if ([theLocationManager respondsToSelector:@selector(setAllowsBackgroundLocationUpdates:)]) {
    [theLocationManager setAllowsBackgroundLocationUpdates:YES];
}

in Swift:

if #available(iOS 9.0, *) {
    theLocationManager.allowsBackgroundLocationUpdates = true 
}

If this property is not set, then the Blue Bar will not appear when exiting the app, and the user location is not available to your app. Note that in iOS 9, you must set the property in order to be able to use location in the background.

See the WWDC video for Apple's explanation.

Answer 4

If you follow steps below, Blue bar will not appear in background mode

• set NSLocationAlwaysUsageDescription in Info.plist
• check Capabilities > Background Modes > Location Updates
• in code locationManager.requestAlwaysAuthorization()

Answer 5

The blue bar only show when you enable Background Location Updates and request when-in-use authorization in iOS 8.

Blue bar “is Using Your Location” appears shortly after exiting app

Sounds like location manager can't stop immediately. So the blue bar will appear until location manager stop completely. Or maybe it's just a bug like Keith said.

Answer 6

To show blue bar on header that your app is using location when pressing home button you have to set Privacy - Location When In Use Usage Description in Plist file

 self.locationManager.delegate = self;

 locationManager.desiredAccuracy = kCLLocationAccuracyBest

 self.locationManager.requestWhenInUseAuthorization()

 self.locationManager.pausesLocationUpdatesAutomatically = true

 self.locationManager.allowsBackgroundLocationUpdates = true

when you use self.locationManager.requestAlwaysAuthorization() then it will not display blue header

you need only use self.locationManager.requestWhenInUseAuthorization() then it will display blue header when you app is in background that your app is using Location

you have to also set background mode in capabilities in target for location