This tag should be used only on questions that are about Objective-C features or depend on code in the language.
I'm looking for the best way to change the backgroundColor of an NSView. I'd also like to be able to …
objective-c macos background-color nsviewI need to get the time elapsed between two events, for example, the appearance of a UIView and the user's …
ios objective-cI successfully implemented the OpenCV square-detection example in my test application, but now need to filter the output, because it's …
c++ objective-c image-processing opencv computer-visionPossible Duplicate: Best practices for validating email address in Objective-C on iOS 2.0? I am developing an iPhone application where I …
objective-c cocoa email email-validationHow to make a custom edit view in iOS7 UITableView with Objective C like the Evernote or the Apple Reminders …
ios objective-c swift uitableview swipeI am testing some code that does asynchronous processing using Grand Central Dispatch. The testing code looks like this: [object …
objective-c unit-testing grand-central-dispatchGreets, I'm reading that the default behaviour of UITableView is to pin section header rows to the top of the …
ios objective-c uitableviewI'm a newbie in obj-c and have been using asihttp for some of my projects. When doing a post request …
ios objective-c afnetworking afnetworking-2How do I make a UIScrollView scroll to the top?
ios objective-c iphone uiscrollview uikitI want to add an image to a UIButton, and also want to scale my image to fit with the …
ios objective-c cocoa-touch uibutton uikit