This tag should be used only on questions that are about Objective-C features or depend on code in the language.
If you can target iOS 4.0 or above Using GCD, is it the best way to create singleton in Objective-C (thread …
ios objective-c singleton grand-central-dispatchI put a UIScrollView in my nib's view, and linked it to a an IBOutlet property. Now, when I do …
objective-c ios uiscrollviewSo I'm trying to update the text on a UIButton when I click it. I'm using the following line to …
objective-c ios xcode event-handling uibuttonI want to send my JSON to a URL (POST and GET). NSMutableDictionary *JSONDict = [[NSMutableDictionary alloc] init]; [JSONDict setValue:"myValue" …
objective-c swift post get nsurlsessionI am currently testing my app with Xcode 6 (Beta 6). UIActivityViewController works fine with iPhone devices and simulators but crashes with …
ios objective-c swift uiactivityviewcontrollerAfter updating to Xcode 5, the navigation bars in all of my app's views have shifted down. Here are some screenshots, …
ios objective-c ios7 uinavigationbar uistatusbarI know it's a new feature and this may not be possible, but I would love to be able to …
ios objective-c xcode assetsIn Java you can suspend the current thread's execution for an amount of time using Thread.sleep(). Is there something …
ios objective-c cocoa-touch sleepI want to use AutoLayout to size and layout a view in a manner that is reminiscent of UIImageView's aspect-fit …
ios objective-c xcode autolayoutIn the new iOS7 Facebook iPhone app, when the user scrolls up the navigationBar gradually hides itself to a point …
ios iphone objective-c ios7 uinavigationbar