This document provides an overview of iOS development, covering the history of iOS, the core technologies involved like Objective-C and Swift, the Xcode integrated development environment, and the different layers that make up the iOS software stack like Cocoa Touch and Core OS. It outlines the course roadmap and requirements for building iOS apps, and demonstrates how to get started with the development process through Apple's tutorials and resources.

1. INTRO TO
IOS DEVELOPMENT
Jamal O’Garro
Code Crew
Software Engineer + Instructor
CODE CREW | INTRO TO IOS DEVELOPMENT

2. • Overview of iOS
• Objective-C
• Xcode
• Sample App
CODE CREW | INTRO TO IOS DEVELOPMENT
CLASS ROADMAP

3. HISTORY OF IOS
CODE CREW | INTRO TO IOS DEVELOPMENT
• iOS (Formerly iPhone OS) is Apple’s operating system
for mobile apps
• Derives from Mac OS
• Runs on iPhones, iPads, iPods, Apple TV and the
Apple Watch
• Provides interactions (tapping, swiping, pinch-to-zoom,
etc.)

4. IOS DEVICES OVER THE YEARS
CODE CREW | INTRO TO IOS DEVELOPMENT

5. IPHONE 6 + APPLE WATCH
CODE CREW | INTRO TO IOS DEVELOPMENT

6. BEHIND THE SCENES
CODE CREW | INTRO TO IOS DEVELOPMENT

7. REQUIREMENTS
CODE CREW | INTRO TO IOS DEVELOPMENT
• Apple computer
• Apple mobile device (iPhone, iPad, etc.)
• Xcode
• iOS SDK
• Developer account (optional)

8. OPTIONS FOR BUILDING IOS APPS
CODE CREW | INTRO TO IOS DEVELOPMENT
• Native development with Objective-C/Swift
• Hybrid applications (PhoneGap, Ionic, Sencha)
• Langauge Compilers: Ruby Motion, Titanium, React
Native

9. OBJECTIVE-C
CODE CREW | INTRO TO IOS DEVELOPMENT

10. SWIFT
CODE CREW | INTRO TO IOS DEVELOPMENT

11. MEMORY MANAGEMENT
CODE CREW | INTRO TO IOS DEVELOPMENT
• Reference counting
• Strong and weak references

12. IOS LAYERS
CODE CREW | INTRO TO IOS DEVELOPMENT
COCOA TOUCH
MEDIA
CORE SERVICES
CORE OS

13. COCOA TOUCH
CODE CREW | INTRO TO IOS DEVELOPMENT
• UIKit
• iAd
• MessageUI
• MapKit
• AddressBookUI

14. MEDIA
CODE CREW | INTRO TO IOS DEVELOPMENT
• CoreAudio
• CoreImage
• CoreVideo
• MediaPlayer
• SpriteKit

15. CORE SERVICES
CODE CREW | INTRO TO IOS DEVELOPMENT
• Foundation
• MultipeerConnectivity
• CoreLocation
• CoreData

16. CORE OS
CODE CREW | INTRO TO IOS DEVELOPMENT
• Security
• System
• ExternalAccessory

17. XCODE
CODE CREW | INTRO TO IOS DEVELOPMENT

18. LET’S BUILD OUR APP!
CODE CREW | INTRO TO IOS DEVELOPMENT

19. HOW TO GET STARTED
CODE CREW | INTRO TO IOS DEVELOPMENT
• Sign up for an Apple Developer Account
• Learn Objective-C and/or Swift
• Follow Apple’s “Start Developing iOS Apps Today”
tutorial
• Build your own app and submit it to the app store!

20. RESOURCES
CODE CREW | INTRO TO IOS DEVELOPMENT
• Apple Developer Guides
• Apple’s Development Videos
• Big Nerd Ranch Guide to Objective-C
• Big Nerd Ranch Guide to iOS Programming
• iOS Dev Weekly
• Stanford iTunesU Course
• r/iOSProgramming

21. THANKS MUCH!!!
Jamal O’Garro
Code Crew
Software Engineer + Instructor
CODE CREW | INTRO TO IOS DEVELOPMENT