This tag should be used only on questions that are about Objective-C features or depend on code in the language.
I need to hide the right button in the Navigation Bar, then unhide it after the user selects some options. …
ios objective-c uibarbuttonitem rightbarbuttonitemSO, I am adding a gesture recogniser to an overlay view. When tapped on screen i want this overlay to …
iphone objective-c ios ipad ios4After updating to Xcode 6.1 beta 2 when I run my app that contains tableview cells, the debug assistant says: Warning once …
ios objective-c swift xcode uitableviewI am trying to check to see if a string that I am going to use as URL starts with …
ios objective-c iphone nsstring nsmutablestringMy project is using AFNetworking. https://github.com/AFNetworking/AFNetworking How do I dial down the timeout? Atm with no …
objective-c ios xcode networking afnetworkingFor the most part with ARC (Automatic Reference Counting), we don't need to think about memory management at all with …
objective-c memory-management xcode4.2 automatic-ref-countingI have just discovered completion blocks: completion:^(BOOL finished){ }]; What do I need to do to have my own method …
objective-c objective-c-blocksThe following is in my .h file: NSDictionary *originalValues; @property (nonatomic, retain) NSDictionary *originalValues; This is the .m file to …
objective-c ios xcode nsdictionaryWhat is the easiest and fastest code to do a conversion between NSData and a base64 string? I've read a …
ios objective-c nsstring nsdataIs there a way to get the current view controller from the AppDelegate? I know there is rootViewController, but that's …
objective-c ios uiviewcontroller