Programming: Swift: Create A Fully Functioning App: Learn In A Day! (Apps, PHP, HTML, Python, Programming Guide, Java, App Development) by Os Swift

Author:Os Swift [Swift, Os]
Language: eng
Format: epub
Published: 2015-05-30T18:30:00+00:00

AppDelegate.swift

The starting point of your application is a file called AppDelegate.swiftso let’s have a look at the code it contains. Ignore the comments that you see at the top of the file and go to the first piece of code. It should read

Import UIKit

This piece of code is going to allow you to access all that is available in UIKit. If you have done any programming with Objective C then you will find this very familiar but unlike Objective C, you will be importing an entire module instead of header files for a particular framework or class. You will do this in virtually every file in an application, whether it is for UIKit or for the simpler Foundation files.

On to the next line of code, it looks a little strange:

@UIApplicationMain

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