iPhone App开发 - 很少有初学者的问题

I've been tasked with creating an app, but I have zero experience with iOS development. I have general programming knowledge, particularly with Java, JavaScript and PHP (I'm more a web developer than a programmer). I have dabbled with C, Xcode and various other languages and IDEs in the past, but I remember very little.I've been tasked with creating an app, but I ha