objective-c Archives - Page 9 of 11

What is the difference between #import and #include in Objective-C?

What are the differences between #import and #include in Objective-C and are there times where you should use one over the other? Is ...

May 8, 2022
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Set UIButton title UILabel font size programmatically

I need to set the font size of the title UILabel of a UIButton programmatically. 19 Answers 19

May 8, 2022
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How dangerous is it to compare floating point values?

I know UIKit uses CGFloat because of the resolution independent coordinate system. But every time I want to check if for example frame.origin.x ...

May 7, 2022
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throwing an exception in objective-c/cocoa

What’s the best way to throw an exception in objective-c/cocoa? 13 Answers 13

May 7, 2022
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What goes into your .gitignore if you’re using CocoaPods?

I’ve been doing iOS development for a couple of months now and just learned of the promising CocoaPods library for dependency management. I ...

May 7, 2022
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How to print out the method name and line number and conditionally disable NSLog?

I’m doing a presentation on debugging in Xcode and would like to get more information on using NSLog efficiently. In particular, I have ...

May 5, 2022
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How do I set up NSZombieEnabled in Xcode 4?

How do I set up NSZombieEnabled and CFZombieLevel for my executable in Xcode 4? 7 Answers 7

May 5, 2022
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What is the difference between class and instance methods?

What’s the difference between a class method and an instance method? Are instance methods the accessors (getters and setters) while class methods are ...

May 5, 2022
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How do I iterate over an NSArray?

I’m looking for the standard idiom to iterate over an NSArray. My code needs to be suitable for OS X 10.4+. 8 Answers ...

May 5, 2022
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How to check if an NSDictionary or NSMutableDictionary contains a key?

I need to check if an dict has a key or not. How? 16 Answers 16 objectForKey will return nil if a key ...

May 5, 2022
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