CODEWITHSUNDEEP
iphoneobjective-ciosaop
ramo
ramo

Reputation: 619

Aspect Oriented Programming in Objective-C for iPhone

Could anyone help me first when I can use AOP, and what is it exactly in an iphone programming.

I need to access to the app project source code and call some of the functions and be notified their views loaded from outside like a library.

I found these so far, but looks very complicated to follow. Some doesnt build or the source code removed.

https://github.com/ndcube/AOP-for-Objective-C

https://github.com/moszi/AOP-in-Objective-C

ACAspect on cocoadev

Upvotes: 0

Views: 901

Answers (1)

Duncan C
Duncan C

Reputation: 131426

If you have a specific view in a view controller and want to be notified when it is loaded, you can register for a KVO notification when that instance variable (the outlet) changes.

You'll want to read up on Key Value Observing in Cocoa. There are several methods you will need to learn how to use.

Do a search on "Introduction to Key-Value Observing Programming Guide" in the XCode docs and read that section.

Make sure you balance each call to addObserver:forKeyPath:options:context: with a call to removeObserver:forKeyPath:, or your app may crash after the observing object is deallocated.

Upvotes: 1

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