This tag should be used only on questions that are about Objective-C features or depend on code in the language.
When trying to compile with Xcode, I am getting the following error: **Ld /Users/doronkatz/Library/Developer/Xcode/DerivedData/iKosher-bphnihrngmqtkqfgievrrumzmyce/…
objective-c ios xcode4I have a UIImage that is UIImageOrientationUp (portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I …
ios objective-c uiimage uikit core-graphicsI'm getting the following warning by the ARC compiler: "performSelector may cause a leak because its selector is unknown". Here's …
ios objective-c memory-leaks automatic-ref-countingI added a navigation control to switch between views in my app. But some of the views shouldn't have 'Back' (…
ios objective-c iphone navigation uinavigationcontrollerSo I was making an rss reader for my school and finished the code. I ran the test and it …
ios objective-c uitableviewI was using this in my iPhone app if (title == nil) { // do something } but it throws some exception, and the …
ios objective-c cocoa-touchUpdate: Solution found. You can read it at the end of the post. I'm trying to perform a POST request …
ios objective-c nsurlsessionI just started programming Objective-C and, having a background in Java, wonder how people writing Objective-C programs deal with private …
objective-c cocoa code-completionI am using new UIAlertController for showing alerts. I have this code: // nil titles break alert interface on iOS 8.0, so …
ios objective-c ios8 uialertview uialertcontrollerI use custom button in my app named "addButton" and I want to border it with white color how can …
ios objective-c