IOS Development with Swift

571 Pages·2017·52.65 MB·English

by  Craig Grummit

Covers Swift 4, Xcode 9, and iOS 11
Craig Grummitt
M A N N I N G
Devices, orientation, and multitasking modes
for iOS size classes
Horizontal (width)
Compact Regular
iPhone 4S, 5, 6, 7, 8, iPhone 6 Plus, 7 Plus,
SE landscape 8 Plus landscape
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iPhone portrait iPad portrait/landscape
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erti iPad landscape: iPad landscape:
V split-view secondary app/ split-view primary app
slide-over
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iPad portrait: iPad landscape:
split-view/slide-over side-by-side
iOS Development with Swift
ii
iOS Development
with Swift
CRAIG GRUMMITT
MANNING
SHELTER ISLAND
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ISBN 9781617294075
Printed in the United States of America
1 2 3 4 5 6 7 8 9 10 – EBM – 22 21 20 19 18 17
brief contents
PART 1 INTRODUCING XCODE AND SWIFT ................................... 1
1 ■ Your first iOS application 3
2 ■ Introduction to Swift playgrounds 29
3 ■ Swift objects 55
PART 2 BUILDING YOUR INTERFACE .......................................... 81
4 ■ View controllers, views, and outlets 83
5 ■ User interaction 105
6 ■ Adaptive layout 133
7 ■ More adaptive layout 167
8 ■ Keyboard notifications, animation, and scrolling 199
PART 3 BUILDING YOUR APP ................................................... 225
9 ■ Tables and navigation 227
10 ■ Collections, searching, sorting, and tab bars 263
11 ■ Local data persistence 297
12 ■ Data persistence in iCloud 337
13 ■ Graphics and media 371
14 ■ Networking 409
15 ■ Debugging and testing 439
v
vi BRIEF CONTENTS
PART 4 FINALIZING YOUR APP ................................................. 479
16 ■ Distributing your app 481
17 ■ What’s next? 513
contents
preface xv
acknowledgments xviii
about this book xix
about the author xxiii
about the cover illustration xxiv
PART 1 INTRODUCING XCODE AND SWIFT .................... 1
1 Your first iOS application 3
1.1 Exploring iOS SDK 3
1.2 Creating an Xcode project 5
Templates 6 ■ Project options 9
1.3 Exploring the Xcode interface 10
Toolbar area 11 ■ Utility area 12 ■ Navigator area 12
Editor area 13 ■ Debug area 15
1.4 Editing your app’s interface 15
Storyboards and nibs 15 ■ View controllers and views 16
Interface Builder 16 ■ Object Library 17 ■ Document
Outline 18 ■ Inspectors 19
1.5 Running your app 22
Running your app on a device 22 ■ Running your app in the
simulator 22 ■ Running your app 23 ■ Simulator features 23
vii
viii CONTENTS
1.6 Peeking at a completed app 24
Checking out a repository in Xcode 24 ■ Peeking at the
completed app’s storyboard 24 ■ Tweaking the code 25
1.7 Summary 26
2 Introduction to Swift playgrounds 29
2.1 Xcode playground 30
Results sidebar 31 ■ Automatic compiling 32
Console 32
2.2 Type safety and type inference 33
Converting numeric types 35 ■ Concatenating
strings 36
2.3 Collections 36
Arrays 36 ■ Sets 37 ■ Dictionaries 38
2.4 Control Flow 38
for-in 39 ■ switch statement 40
2.5 Functions 41
Modifying external parameter names 41 ■ Omitting
external parameter names 42 ■ Default parameter names 42
2.6 Optionals 42
Declaring an optional 44 ■ Unwrapping an optional 44
Optional chaining 48 ■ Final comments on optionals 49
2.7 Tuples 49
Tuples as return values 50 ■ Tuple magic 50
2.8 Higher-order functions 51
map 51 ■ Closures 52 ■ filter 53 ■ reduce 53
sorted 54
2.9 Summary 54
3 Swift objects 55
3.1 Classes 56
Defining a class 56 ■ Properties 57 ■ Initializers 58
Methods 59 ■ Computed properties 63 ■ Class inheritance 65
Protocols 68
3.2 Structures 71
Structures vs. classes 72