Preface xiii
Chapter 1: Media 1
Speech 1
Other Options 3
Delegate Callbacks 3
Dictation 5
Creating Barcodes 5
Filter Parameters 5
Building Codes 6
Reading Barcodes 8
Listening for Metadata Objects 10
Responding to Metadata 11
Extracting Bounds 13
Enhancing Recognition 14
Detecting Faces 14
Building AVFoundation Movies 14
Creating a Pixel Buffer 16
Drawing into the Pixel Buffer 17
Expressive Drawing 18
Building Movies from Frames 19
Adding Images to Movies 23
Wrap-up 24
Chapter 2: Dynamic Typography 25
Type Size and User Needs 25
How Dynamic Type Works 25
Listening for Type Updates 28
Handling Dynamic Type with Attributes 31
Scanning for Text Style Ranges 32
Applying Text Style Ranges 34
Attribute-Ready Dynamic Elements 35
Custom Fonts Faces 36
Dynamic Text Views 37
Custom Sizing 38
Font Descriptors 39
Descriptor Challenges 40
Fonts with Multiple Variations 41
Using String Attributes to Modify Fonts 42
Dynamic Type Gotchas 43
Wrap-up 43
Chapter 3: Text Kit 45
Creating Complex Text Layouts 45
Glyphs 46
Text Storage 55
Layout Managers 56
Text Containers 56
Adaptive Flow 58
Insets 60
Exclusion Paths 60
Bounding Rectangles 62
Using Text Kit to Add Touch to Labels 63
Establishing Text Kit 63
Synchronizing 64
Translating Coordinates 65
Glyphs and Characters 66
Checking for Links 67
Adding Visual Feedback 67
Draggable Exclusion Zones 69
Building PDFs with Text Kit 71
Printing Text View Data 73
Printing PDF Data 74
Wrap-up 74
Chapter 4: Attributed Strings and Document Containers 75
Class Enhancements 75
String Attachments 77
Building Attributed Strings from HTML 78
Document Type Dictionaries 79
Converting HTML Source to Attributed Strings 80
Converting Attributed Strings to Document Representations 81
Generating HTML from Attributed Strings 82
Markup Initialization 83
RTF and RTFD 83
The RTFD Container 84
Initializing Attributed Strings from a File 84
Converting RTFD Text to Data 85
Writing RTFD Containers from Data 86
Inspecting Attributes 87
Establishing Document Attributes 89
Enhancing Attributed Strings 91
Returning Copies with New Attributes 92
Adjusting Attributes 93
Extending Mutable Attributed Strings 94
Text Ranges 95
Calculating Positions 95
Position Geometry 95
Updating Selection Points 97
Hardware Key Support 97
Wrap-up 99
Chapter 5: Animation 101
Keyframe Animation 101
Building Physics with Keyframes 103
Blocking Animators 105
UIKit Spring-Based Animations 106
Practical Uses for Spring Animations 108
System Animations 109
Motion Effects 109
Building Planes 110
Shadow Effects 111
Custom Transition Animations 113
Delegation 114
Building Transitioning Objects 114
Implicit Animations 116
Building an Animation-Ready Layer 116
Building a View Around a Layer 118
Timing 118
Coordinating Animations 119
Building Implicit Completion Blocks 120
Animating Custom Properties 121
Intercepting Updates 122
Drawing Properties 123
Wrap-up 124
Chapter 6: Dynamic Animators 125
Physics-Based Behaviors 125
Building Dynamics 126
Detecting Pauses 127
Creating a Frame-Watching Dynamic Behavior 131
Implementing Snap Zones 133
Leveraging Real-World Physics 135
Connecting a Gravity Behavior to Device Acceleration 137
Creating Boundaries 138
Enhancing View Dynamics 138
Custom Behaviors 139
Creating Custom Dynamic Items 139
Subverting Dynamic Behaviors 141
Better Custom Dynamic Behaviors 142
Custom Secondary Behaviors 144
Collection Views and Dynamic Animators 147
Custom Flow Layouts 147
Returning Layout Attributes 148
Updating Behaviors 149
Building a Dynamic Alert View 150
Connecting Up the Jelly 150
Drawing the View 152
Deploying Jelly 154
Wrap-up 154
Chapter 7: Presentations 155
Alerts 155
Class Deprecations 155
Building Alerts 156
Enabling and Disabling Alert Buttons 161
Adding Text Fields 162
Mask Views 164
Shape Layer Masking 164
Building Mask Views 166
Building Effect Views 169
Building a Blur Effect 170
Adding Vibrancy Effects 171
Animating Effect Views 172
Building Popovers 175
Supporting Bubbles 176
Presenting Popovers 177
Wrap-up 177
Chapter 8: Shape Magic 179
How to Shape a View 179
Expanding Beyond Circles 180
Resizing Bezier Paths 180
Building a Bezier-Based Shape Image View 184
Working with Unclosed Shapes 185
Adding Borders to Shaped Views 187
Building Shaped Buttons 190
Adding Attention-Grabbing Animations to Shaped Views 193
Wrap-up 199
Chapter 9: Adaptive Deployment 201
Traits 201
Trait Properties 202
Defining Traits 202
Combining Trait Collections 203
Designing for Traits 204
UIScreen Properties 205
Coordinate Spaces 205
Application Frame 206
Screen Bounds 206
Scale 207
Rotation 207
Size Classes and Assets 208
Basic Deployment 208
UIKit and Image Views 210
The UIImageAsset Class 210
Building Images from PDFs 211
Overriding Trait Collections 214
Building Side-by-Side iPhone Split Views 215
A Bit More About iOS 8 Split View Controllers 218
Wrap-up 219
Chapter 10: Development Helpers 221
All the Lorems 221
Placeholder Text 221
Image Ipsums 223
Generating Random User Data 225
Bulk Names 225
Generating Random Feeds 227
Random Everything 228
Directives 229
Converting Comments to Warnings 229
Warnings 231
Testing for the Simulator 232
Errors 232
Testing for Inclusion 233
Messages 234
Wrapping Pragmas 234
Overriding Diagnostics 235
Unused Variable Warnings 235
Marking Non-null and Nullable Items 236
Developer Tweaks 236
Saving Files from the Simulator 237
Tighter Logging 238
Wrap-up 238
Chapter 11: A Taste of Swift 239
Swift Versus Objective-C 239
Building iOS Apps in Swift 240
Optionals 243
Inferred Types 244
The Optional Enumeration 245
Unwrapping Optionals 246
Assigning Values to Non-optionals 248
Cocoa Touch Patterns 248
Hybrid Language Development 251
Calling Objective-C from Swift 252
Accessing Classes 252
Calling Swift from Objective-C 253
Preparing Swift for Objective-C 254
Class Descent 255
Building the Basics 256
Watching Progress 257
Learning Swift 259
Wrap-up 260
Index 261
· · · · · · (收起)