This tag should be used only on questions that are about Objective-C features or depend on code in the language.
There are a couple of different ways to remove HTML tags from an NSString in Cocoa. One way is to …
ios objective-c iphone cocoa-touch nsstringI just need to ask something as follow. Suppose I am having a dictionary. NSMutableDictionary *xyz=[[NSMutableDictionary alloc] init]; [xyz …
ios objective-c nsdictionaryHow do I convert a negative number to an absolute value in Objective-C? i.e. -10 becomes 10?
objective-cI have a game in which the orientation of the device affects the state of the game. The user must …
iphone objective-c ios orientation gyroscopeI tend to use CGFloat all over the place, but I wonder if I get a senseless "performance hit" with …
iphone objective-c cocoa-touchCan someone please instruct me on the easiest way to change the font size for the text in a UITableView …
ios objective-c swift uitableview uitableviewsectionheaderI've read all of the related posts regarding this and I am still having an error: 'Invalid update: invalid number …
ios objective-c arrays nsmutablearrayIs it possible to set a symbol for conditional compilation by setting up properties in an Xcode project? My aim …
objective-c xcode c-preprocessorI want to create a clickable label on my app leading me to a Safari webpage. I also want the …
iphone objective-c url uilabelI've googled but not been able to find out what the swift equivalent to respondsToSelector: is. This is the only …
objective-c swift selector