This tag should be used only on questions that are about Objective-C features or depend on code in the language.
Are there any shortcuts to (stringByAppendingString:) string concatenation in Objective-C, or shortcuts for working with NSString in general? For example, …
objective-c nsstring string-concatenationI am creating a free version of my iPhone game. I want to have a button inside the free version …
ios objective-c app-storeWith the iOS SDK: I have a UIView with UITextFields that bring up a keyboard. I need it to be …
ios objective-c uiscrollview uitextfield uikeyboardI've just upgraded to xcode 4.0 and I can no longer deploy to iPhone, I get a Apple Mach-O Linker Error, …
objective-c iphone xcode xcode4How can I check if a string (NSString) contains another smaller string? I was hoping for something like: NSString *string = @"…
ios objective-c string range substringHow much can a developer charge for an iPhone app like Twitterrific? I want to know this because I need …
iphone objective-c jobsHow can I create a basic UIButton programmatically? For example in my view controller, when executing the viewDidLoad method, three …
objective-c uibutton programmatically-createdHow do I use an NSTimer? Can anyone give me step by step instructions?
objective-c cocoa nstimerWhat do atomic and nonatomic mean in property declarations? @property(nonatomic, retain) UITextField *userName; @property(atomic, retain) UITextField *userName; @property(…
ios objective-c properties atomic nonatomicI want to check if the iOS version of the device is greater than 3.1.3 I tried things like: [[UIDevice currentDevice].…
ios objective-c