英文原版带目录精排AbouttheBookThisbookguidesyoudownthepathtocreatingyourowniOSapplications.IwanttogetyoupasttheinitialdifficultiestohelpyouunderstandthewaythatiOSapplicationsworkandhowtheyarebuilt.Asyouworkyourwaythroughthisbook,youwillcreateanumberofsmallapplications,eachdesignedt