is there a performSelector on some boolean in ios development [closed]
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15-06-2021 - |
Question
I'm using CoreLocation,and I want to call a method to do some computations on the latitude and longitude after they have been assigned valid values or after these values have been updated.
How do you implement this? I was considering using performSelector, but those methods take a time delay -- i don't want a time delay, i want to know that latitude and longitude have valid values first.
Solution
Why not call whatever method you want in Core Locations delegate method:
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation;
Rule of thumb is to ignore the first set of CLLocation coordinates.
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