Objective-c is a highly dynamic message-based object-oriented language, superset of C, that is a primarily used for programming Apple's Mac OS X and iOS platforms.

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Manage the persistence of entities on iOS in several places: CoreData on the device, iCloud and on a REST API

For the needs of a project, I would persist the datas contained in Core Data in several places depending on the state of the user. If the user is logged to my API -> Persist the datas on my API. ...
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Create an Objective-C category to route methods depending on a specified type

For one project, I needed to find a solution to avoid code like this: if ([self.desiredColor isEqualToString:@"Red"]) [self constructRedMenu]; else if ([self.desiredColor ...
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Why isn't the isa pointer hardwired in Objective-C classes?

I've been studying the Objective-C runtime for some years, and even hacked libobjc a little bit (both Apple's and GNUStep's), and I've been wondering about a design decision on the compilers. Every ...
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Do iOS frameworks require the same internal versioning as OSX frameworks?

I have been reading through the apple documentation for creating frameworks for OSX and iOS. Reading about the structure of frameworks, I began to wonder if there is really any need to create the ...
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Will adding Swift to my Objective-C project slow down my app or IDE?

I have been working on an iOS app in Objective-C for a few months now, and I'd like to try out Swift. Both languages can be used alongside each other via a briding header. Right now my project is ...
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Objective-C Lesson in Class Design

I have the following classes: Teacher Student Class (like a school class) They all extend from KObject that has the following code: - initWithKey - send - processKey Teacher, Student ...
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Can PhoneGap and RoboVm work in harmony?

The Goal is to make an iOS app using phonegap and java. When writing phonegap plugins that interact with native code (objective-c) would it be possible instead to make it interact with java when using ...
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What are the bad points of using Core Data for iOS like an ORM

I just starting to use Core Data for my iOS app and I am thinking about how use Core Data for my needs. What are the features of my app: The user look for products proposed from a catalog. The user ...
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Designing object oriented programming

Basically, I want to make api calls using an SDK I am writing. I have the following classes: Car CarData (stores input values needed to create a car like model, make, etc) Basically to create a ...
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Abstracting AutoLayout sensibly - why is this so conceptually tough and where should I begin?

Below are some babbling, probably incoherent thoughts, but I am so stuck on this problem and I feel like an elegant solution is possible. Though it is indisputably awesome, and makes programatic view ...
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Delegate method privately called from delegate itself?

One has established design patterns so ingrained in their brain, that when sometimes somebody does something unexpected, it is a revelation. My colleague in an iOS project did call the delegate ...