This tag should be used only on questions that are about Objective-C features or depend on code in the language.
I have a working app and I'm working on converting it to ARC in Xcode 4.2. One of the pre-check warnings …
objective-c ios objective-c-blocks automatic-ref-countingIs there any built-in function that allows me to deep copy an NSMutableArray? I looked around, some people say [aMutableArray …
objective-c cocoa-touch cocoa nsarray deep-copyIn iOS8 and prior I can use: NSString *str = ...; // some URL NSString *result = [str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; in iOS9 stringByAddingPercentEscapesUsingEncoding …
ios objective-c url encoding deprecatedI need to set the HTTP header for a request. In the documentation for the NSURLRequest class I didn't find …
iphone objective-c cocoa cocoa-touch iosI'm new to iOS. I've been trying to make an application that will store an image captured from the camera …
ios objective-c core-datahow can I reload and animate just one cell/row ? Right now i download some files. Everytime a file finished …
objective-c cocoa-touch uitableview animationThis question has evolved over the past several weeks to cover more general issues with xcode4 (and upgrading projects form …
objective-c compiler-construction xcode4 clang c-preprocessorI have been reading a lot about iOS7 UI transition. I am not able to get what these three properties …
ios objective-c xcode uiviewcontroller ios7I don't know this type. Is that the biggest one from all? I think it is an integer type, right? …
c objective-c long-longI have been tasked with investigating the feasibility of writing an iPhone App to access our internal VoIP/SIP systems. …
iphone objective-c open-source voip sip