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Your First Swift 4 & iOS 11 App

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Your First Swift 4 & iOS 11 App

23. Variables vs. Constants

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Your First Swift 4 & iOS 11 App

47 episodes · 2 hrs, 39 mins

Basic Controls

Part 1: 10 Episodes · 35 minutes

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01. Introduction 2:36
02. Challenge: Making a Programming to-do list 3:29
03. Buttons and Actions 5:49
04. Alerts 3:17
05. Solving Problems 5:05
06. Challenge: Connecting Actions 3:09
07. How Does an App Work 2:43
08. Portrait vs. Landscape 4:11
09. Challenge: Basic Controls 4:37
10. Conclusion 0:36

Outlets

Part 2: 8 Episodes · 29 minutes

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11. Introduction 1:02
12. Objects, Data and Methods 3:58
13. Strings and Variables 7:28
14. Challenge: Your First Bug 1:41
15. Connecting Outlets 5:18
16. Writing Methods 6:15
17. Challenge: Connecting Outlets 2:46
18. Conclusion 0:35

Coding Basics

Part 3: 11 Episodes · 26 minutes

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19. Introduction 0:50
20. Challenge: How to Calculate the Difference 2:54
21. Calculating the Difference 3:30
22. Challenge: Calculating the Difference 1:57
23. Variables vs. Constants 3:05
24. Type Inference 2:19
25. Challenge: Showing the Score 2:09
26. Challenge: Tracking Rounds 2:25
27. Adding Polish 4:29
28. Challenge: Adding Polish 2:09
29. Conclusion 0:50

Coding Practice

Part 4: 7 Episodes · 23 minutes

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30. Introduction 0:55
31. Challenge: Local vs. Instance Variables 3:07
32. Closures 4:21
33. Challenge: Starting Over 2:30
34. Adding Extra Screens 6:20
35. Challenge: Adding Extra Screens 5:16
36. Conclusion 0:31

Styling the App

Part 5: 11 Episodes · 45 minutes

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37. Introduction 1:01
38. Styling with Images and Labels 5:20
39. Challenge: Styling with Labels 2:08
40. Styling with Buttons and Sliders 10:17
41. Challenge: Styling the About Screen 4:25
42. Web Views 3:42
43. Introduction to Auto Layout 5:30
44. Challenge: Introduction to Auto Layout 4:39
45. App Icon and Display Name 1:44
46. Running the app on your device 5:12
47. Conclusion 1:11

Your First Swift 4 & iOS 11 App

Sep 19 2017 · Swift 4, iOS 11, Xcode 9

Part 4: Coding Basics

23. Variables vs. Constants

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About this episode

Finalize the difference algorithm and score calculation, and learn about an important Swift concept: the difference between variables and constants.

Instructors

Ray Wenderlich

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Ray Wenderlich

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This content was released on Sep 19 2017. The official support period is 6-months from this date.

Finalize the difference algorithm and score calculation, and learn about an important Swift concept: the difference between variables and constants.

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Previous episode: 22. Challenge: Calculating the Difference Next episode: 24. Type Inference

There is an updated version of this course available, created for Swift 5.5, iOS 15, Xcode 13. View latest version

Your First Swift 4 & iOS 11 App

Part 4: Coding Basics

23. Variables vs. Constants

Episode complete

About this episode

Instructors

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