Drawing NSAttributedStrings with Superscripts and Subscripts (iOS/Xcode) on December 19, 2013 CATextLayer iOS iOS 6 iOS 7 NSAttributedString NSMutableAttributedString UILabel UITextView Xcode +
NSMutableArray, indexOfObject:, NSNull and NSNotFound (Xcode for iOS) on December 11, 2013 arrays indexOfObject: iOS NSMutableArray NSNotFound NSNull Xcode +