This tag should be used only on questions that are about Objective-C features or depend on code in the language.
I have a method that accepts a block and a completion block. The first block should run in the background, …
objective-c cocoa-touch ios6 objective-c-blocks grand-central-dispatchA "quicky": how can I get the size (width) of a NSString? I'm trying to see if the string width …
iphone objective-c xcode nsstring widthI'm a bit confused about how and when to use beginBackgroundTaskWithExpirationHandler. Apple shows in their examples to use it in …
ios objective-c network-programming multitasking background-threadCan you guide me how to properly link static library to iPhone project. I use static library project added to …
iphone objective-c static-libraries categoriesI am working on adding In-App purchases to my app. I am able to receive the productsRequest:didReceiveResponse method, and …
iphone objective-c in-app-purchase storekitI have a UITextView which is managed via Interface Builder. As data detection I have "Links" checked. In iOS 6 everything …
ios objective-c ios6 uitextview ios7I searched some posts, I think I cannot write an extension under swift, and call it from Objective-C code, right ? @…
objective-c swift swift-extensionsiOS 8 revealed a new API yesterday concerning App Groups. It was kind of messy before to share data and communicate …
ios objective-c ios8 ios-app-extensionI am working with Map Kit in iOS 8 using Obj-C NOT SWIFT. I cannot get the device location it is …
objective-c mapkit cllocationmanager ios8I have Latitude and Longitude of two points and Want to Draw line between these two points with Pin on …
iphone objective-c ios ipad mapkit