This tag should be used only on questions that are about Objective-C features or depend on code in the language.
I have two view controllers A and B, and they both have each other as their delegates. When I did …
objective-c cocoa-touch protocolsWhen I try to extract a string from a larger string it gives me a range or index out of …
objective-c cocoa nsstring nsrangeSay I want a bundled image to take up all available screen width in an iPhone app - for example …
ios objective-c iphone cocoa-touch iphone-6I have a textfield in my iOS app where the user is supposed to input some text. But I was …
objective-c ios lowercaseI have trouble with deleting all of layer's sublayers. I currently do this manually, but that brings unnecessary clutter. I …
objective-c cocoa core-animationHow do I display an image in the UIImageView component from the hard drive? I have a local folder called "…
ios objective-c iphone imagesourceI have used NSSets many times in my apps, but I have never created one myself. When is it better …
ios objective-c arrays cocoa cocoa-touchCan I set a range of numbers when using arc4random()? For example 50-100 only.
ios objective-c arc4randomI know that there is no public API for the SIRI-Services, but is there an API for simple Speech-Recognition? So …
ios objective-c speech-recognition siriMy Cocoa app needs some small dynamically generated windows. How can I programmatically create Cocoa windows at runtime? This is …
objective-c cocoa nswindow