Paperback:854pagesPublisher:Apress;2nded.2015edition(December16,2015)Language:EnglishISBN-10:1484217535ISBN-13:978-1484217535ThisisthedefinitiveguidetotheSwiftprogramminglanguageandtheiOS9SDK,andthesourcecodehasbeenupdatedtoreflectXcode7andSwift2.There’sup-to-datecoverageofnewApp