My iOS 12 app has two modes;

1. needs kCLAuthorizationStatusAuthorizedWhenInUse
2. needs kCLAuthorizationStatusAuthorizedAlways

When the user has never been asked about kCLAuthorizationStatusAuthorizedAlways then requestAlwaysAuthorization shows a nice panel asking for permission and stating NSLocationAlwaysAndWhenInUseUsageDescription.

But when the user has once allowed “WhenInUse” but declined “Always” then no panel will come up.

In this case I would like to do:

NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
[ UIApplication.sharedApplication openURL: url options: [NSDictionary dictionary] completionHandler: …

But how do I know whether the user has been asked (and declined) this question already?

Also: I cannot always direct the user to the Settings app, because when the question about “Always” has never come up, there will be no option for “Always” in the Setting app.


Gerriet.