确定用户是否已拒绝CoreLocation权限

Question

Is it possible to determine programmatically that a user has denied permission to use their location?

Secondly, if a user has denied permission, is it possible to re-prompt the user?

Answer 1

You can determine your authorization status using the authorizationStatus class method on CLLocationManager . This returns a CLAuthorizationStatus which is defined as:

typedef enum {
   kCLAuthorizationStatusNotDetermined = 0,
   kCLAuthorizationStatusRestricted,
   kCLAuthorizationStatusDenied,
   kCLAuthorizationStatusAuthorized
} CLAuthorizationStatus;

The system will prompt the user to authorize your application if the authorization status is undetermined when you attempt to start the location manager.

Additionally, you can check the locationServicesEnabled class method to determine if location is enabled system wide.

Answer 2

此外 - 如果locationServicesEnabled返回NO并且您尝试无论如何都尝试启动位置服务，系统将提示用户确认是否应重新启用位置服务。