对于 IOS 8，您必须将 NSLocationAlwaysUsageDescription 或 NSLocationWhenInUseUsageDescription 键添加到您的 plist.否则它不会请求许可.

For IOS 8 you have to add NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription key to your plist. Otherwise it does not ask for permission.

添加 CLLocationManagerDelegate

add CLLocationManagerDelegate

@implementation Locator <CLLocationManagerDelegate>

- (instancetype) init {
    //......
    self.locationManager.requestAlwaysAuthorization();
}