The document discusses iOS app development in Swift. It covers tools used like Xcode and Mac OS X, the app lifecycle and states, design patterns like MVC and delegation, storyboards, debugging, and resources for learning iOS development like Apple's documentation and Stanford University's iOS courses on iTunes. The presentation includes demonstrations of these concepts.

1. iOS Apps in Swift
Nuno Dias Developer
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

2. The Pleiadians
“You have accepted a thousand years of definition from those
you consider authorities because they happen to speak louder
or publish books or gather degrees. That is nonsense.”

3. Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015
Skills
0
25
50
75
100
94%
3%1%2%
Social Public Speaking iOS Sleeping

4. Some apps I’ve done…
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

5. Work Clock

6. CREDIBERIA - Properties & Mortgage Lending

7. News

8. 4s Vendor

9. 4s Vendor 2.0

10. 4s Loan

11. Disaster Recovery

12. The Talk
• Tools of the trade
• Rules? of engagement
• Debugging
• Resources

13. Tools of The Trade
• Mac with OS X
• Developer Account
• Swift
• Xcode
• Device

14. Tools of The Trade
• Mac with OS X
• Developer account
• Swift
• Xcode
• Device
• iPhone
• iPad
• Apple Watch (watchOS)
• Apple TV (tvOS)

15. Demo
Nuno Dias // nmdias@icloud.com
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

16. Rules? of engagement
• The application life cycle
• Not Running
• Inactive
• Active
• Background
• Suspended

17. State changes in an iOS application life cycle
Not running
Foreground
Inactive
Active
Background
Suspended

18. Demo
Nuno Dias // nmdias@icloud.com
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

19. Rules? of engagement
• Design Patterns
• Model View Controller (MVC)

20. MVC Design Pattern in iOS & OS X
ViewController
User Action
Model
Update
Notify Update
CompositeMediatorObserver

21. Whoa!
Time out…
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

22. Rules? of engagement
• View Controllers
• Update the view
• Respond to user interactions
• Manage the layout
• Navigation Controllers

23. The views of a Navigation Controller …from Apple’s documentation on the UINavigationController class

24. Rules? of engagement
• Design Patterns
• MVC
• Delegation

25. Delegation Design Pattern in iOS & OS X
To delegate [verb], is to:
“entrust (a task or responsibility)”

26. Protocol
Declaration
Protocol
Implementation
Delegation Design Pattern in iOS & OS X
What to do
Object Object
Take responsibility
Delegate
Do it

27. Table View Delegate
Protocol
Table View Delegate
Implementation
Delegation Design Pattern in iOS & OS X
What to do
Controller Table View
Assign a reference of “self”
Code // did select row at index
did select row at index
Delegate

28. Demo
Nuno Dias // nmdias@icloud.com
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

29. Rules? of engagement
• Design Patterns
• MVC
• Delegation
• Target-Action
• Observer
• Lazy Initialisation
• Singleton
• Prototype
• Decorator
• Introspection
• …

30. Rules? of engagement
• Storyboards
• Scenes
• Segues
• References

31. “MyTodo” app storyboard
Contains
Navigation
Controller
Table View
Controller
Shows
View
Controller

32. An iOS application storyboard

33. Demo
Nuno Dias // nmdias@icloud.com
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

34. Debugging with Xcode
• Stack Trace
• Breakpoints
• Instruments

35. Demo
Nuno Dias // nmdias@icloud.com
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

36. Resources
• From an idea to a prototype
• User Interface
• User Experience
• Usability
• Invision App
• Prototyping made Easy!
• Amazing Newsletter

37. Demo
Nuno Dias // nmdias@icloud.com
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

38. Resources
• Developer Library
• News & Updates
• Current & Pre-Release Software (iOS, OS X, watchOS, tvOS)
• Swift Blog
• WWDC Videos & Sample Code
• Developer Forums
• Technical Support
developer.apple.com

39. Demo
Nuno Dias // nmdias@icloud.com
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015

40. Resources
• iBooks
• iOS Human Interface Guidelines
• The Swift Programming Language
• Using Swift with Cocoa and Objective-C
Available on the iBooks Store

41. • Developing iOS 8 Apps with Swift
• Classroom Videos (With awesome picture and Clarity)
• Instructor’s notes
• Assignments
Resources
• Introduction to iOS, Xcode 6 and Swift
• More Xcode and Swift; MVC
• Using MVC in iOS
• Swift and Foundation
• Views
• Protocols and delegation; Gestures
• Multiple MVCs
• View Controller Life Cycle; Autolayout
• Scroll View; Multithreading
Available on iTunes (Paul Hegarty @ Stanford University)
• Table View
• Unwind Segues; Alerts; Timers; View Animation
• Dynamic Animation
• Application Life Cycle; Core Motion
• Core Location & MapKit
• Modal Segues; Popovers; Notifications; Visual Effects
• Camera; Persistence; Embed Segues
• Internationalisation; Settings

42. Resources
• More tools
• NSHipster nshipster.com (blog)
• Natasha the Robot natashatherobot.com (blog)
• Github github.com (Repository)
• Sketch sketchapp.com (Prototyping)
• Graphic River graphicriver.net (UI Templates)
• Invision invisionapp.com (Prototyping)
• Cocoa pods cocoapods.com (Library Dependency Manager)
• Crashlytics crashlytics.com (Crash Reports)
• Alamofire alamofire.org (Networking)

43. ?
Questions

44. Thanks!
Nuno Dias // nmdias@icloud.com
Smart Talk @ ISCTE-IUL ACM Student Chapter on October 2015