Notify parent class when an error occur

Question

I'm developing an iOS 4 application.

I have a ViewController that contains another class. In this class, I use CoreLocation to track GPS and heading.

I want to notify ViewController that there is an error on GPS tracking with this method:

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error

I want to check if user has disable Location tracking and show a AlertView, but I only can do that on a viewController.

How can I notify ViewController when this error occurs?

score 0 · Answer 1 · answered Nov 04 '11 at 10:16

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You need to subclass your UIViewController and add the method needed to receive a specific error notification from your view.

answered Nov 04 '11 at 10:16

simonpie

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score 0 · Accepted Answer · edited May 23 '17 at 12:11

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You would either use a notification or delegation. In this case, delegation is a better fit. See my answers to and you should be able to adapt them accordingly for your case.

edited May 23 '17 at 12:11

Community

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answered Nov 04 '11 at 10:17

Andrew

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Notify parent class when an error occur

2 Answers2