Magic Strings: keep them at top (after the ` imports`) like this: `static NSString *const kFollowSegmentedControl = "Follow";`

It would be preferable to have something like this as well:
```objective-c
NSString *followLocalizedString = NSLocalizedString(kFollowSegmentedControlOption, nil);
NSString *nearbyLocalizedString = NSLocalizedString(kNearbySegmentedControlOption, nil);
NSArray *segmentedOptionsArray = @[followLocalizedString,nearbyLocalizedString];
```
Indeed you have more code, but it's clear than the previous one.