objective-c Archives - Page 23 of 28

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 ...

I want to be able to debug C structures without having to explicitly type every property that they consist of. i.e. I want ...

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

I’m using Core Data to locally persist results from a Web Services call. The web service returns the full object model for, let’s ...

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

I read The Programming Language Swift by Apple in iBooks, but cannot figure out how to make an HTTP request (something like cURL) ...

I’m trying to submit my universal iOS 9 apps to Apple (built with Xcode 7 GM) but I receive this error message for ...

I’d like to show the current language that the device UI is using. What code would I use? I want this as an ...

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

I am playing around with some of the new iOS 7 features and working with some of the Image Effects as discussed in ...