© Wallace Wang 2019
Wallace WangBeginning iPhone Development with Swift 5https://doi.org/10.1007/978-1-4842-4865-2_1

1. Understanding iOS Programming

Wallace Wang1 
(1)
San Diego, CA, USA
 
All programming involves the same task of writing commands for a computer to follow. To learn iOS programming, you need to learn three different skills:
  • How to write commands in the Swift programming language

  • How to use Apple’s software frameworks

  • How to create user interfaces in Xcode

While it’s possible to create an entire iOS app using nothing but Swift code, this is a tedious, time-consuming, and error-prone method. Trying to write an entire iOS app in Swift means you’ll need to write code to create your user interface, write more code to work with the hardware of ...

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