Swift iOS 24-Hour Trainer

INTRODUCTION xxiii SECTION I: HELLO iOS! LESSON 1: HELLO iOS! 3 iOS Developer Essentials 3 A Suitable Mac 3 A Device for Testing 4 An iOS Developer Account 4 The Offi cial iOS SDK 6 The Typical App Development Process 6 Wireframes and Design 8 Coding 8 Testing 8 Home Screen Icon 9 Application Launch Image 10 Try It 11 Lesson Requirements 11 Hints 11 Step-by-Step 11 LESSON 2: A TOUR OF XCODE AND THE iOS SIMULATOR 19 The Welcome Screen 19 Creating a New Project 20 An Overview of the Xcode IDE 22 The Navigator Area 22 The Editor Area 26 The Utilities Area 28 The Debugger Area 30 The Toolbar 30 Features of the iOS Simulator 31 Installing and Uninstalling Applications 32 Limitations of the iOS Simulator 33 Try It 33 Lesson Requirements 33 Hints 33 Step-by-Step 33 LESSON 3: INTRODUCING SWIFT 35 Introducing Xcode Playgrounds 35 Constants and Variables 37 Data Types 38 Comments 39 Strings 39 Tuples 40 Optionals 41 Control Flow Statements 42 if-else 42 switch-case 44 Loops 45 Control Transfer Statements 49 Try It 50 Lesson Requirements 50 Hints 50 Step-by-Step 50 LESSON 4: FUNCTIONS 53 Declaring Functions 53 Parameters and Return Values 53 Try It 55 Lesson Requirements 55 Hints 55 Step-by-Step 55 LESSON 5: CLOSURES 57 Function Types 57 Closure Types 58 Global Closures 58 Nested Closures 58 Closure Expressions 59 Try It 60 Lesson Requirements 60 Hints 60 Step-by-Step 60 LESSON 6: ERROR HANDLING 63 The ErrorType Protocol 63 Throwing and Catching Errors 64 Suppressing Error Handling 65 The defer Statement 66 Try It 66 Lesson Requirements 66 Hints 67 Step by Step 67 LESSON 7: OBJECT-ORIENTED PROGRAMMING WITH SWIFT 69 Creating Classes with Swift 70 Properties 70 Methods 71 Instantiating Objects 74 Inheritance 74 Computed Properties 76 Enumerations 77 Protocols 77 Try It 81 Lesson Requirements 81 Hints 81 Step-by-Step 81 LESSON 8: SUPPORTING MULTIPLE DEVICE TYPES 85 Device Differences 86 Screen Size 86 Icon Size 87 Device Orientation 89 The Universal XCode Template 90 Try It 91 Lesson Requirements 91 Hints 91 Step-by-Step 91 LESSON 9: INTRODUCTION TO UIKIT AND ADAPTIVE LAYOUT 95 Introducing the UIKit Framework 95 The UIButton Class 97 The UILabel Class 98 Basic Constraints 99 Previewing Your Layout 106 Creating Outlets 108 Creating Actions 110 Try It 110 Lesson Requirements 110 Hints 111 Step-by-Step 111 LESSON 10: INTRODUCTION TO STORYBOARDS 117 Try It 124 Lesson Requirements 124 Hints 125 Step-by-Step 125 SECTION II: MORE iOS DEVELOPMENT LESSON 11: HANDLING USER INPUT 143 Text Fields 143 Text Views 146 Try It 147 Lesson Requirements 147 Hints 148 Step-by-Step 148 LESSON 12: ALERT VIEWS AND ACTION SHEETS 155 Alert Views 155 Action Sheets 159 Try It 161 Lesson Requirements 161 Hints 161 Step-by-Step 161 LESSON 13: ADDING IMAGES TO YOUR VIEW 167 The UIImage Class 167 The UIImageView Class 170 Try It 172 Lesson Requirements 172 Hints 172 Step-by-Step 172 LESSON 14: PICKERS 177 Date Pickers 181 Custom Pickers 184 Try It 185 Lesson Requirements 185 Hints 185 Step-by-Step 186 LESSON 15: NAVIGATION CONTROLLERS 193 Adding a Navigation Controller to a Storyboard 193 The Navigation Controller Interface 196 Try It 197 Lesson Requirements 198 Hints 198 Step-by-Step 198 LESSON 16: TABLE VIEWS 203 Table View Appearance 203 Creating a Table View with Interface Builder 205 Static Table Views 206 Dynamic Table Views 207 Try It 211 Lesson Requirements 211 Hints 211 Step-by-Step 211 LESSON 17: COLLECTION VIEWS 217 Creating a Collection View with Interface Builder 218 Collection View Cells 219 Collection View Delegate and Data Source 220 Try It 222 Lesson Requirements 222 Hints 223 Step-by-Step 223 LESSON 18: TAB BARS AND TOOLBARS 229 Creating a Tab Bar Controller 231 Toolbars 235 Try It 238 Lesson Requirements 239 Hints 239 Step-by-Step 239 LESSON 19: CREATING VIEWS THAT SCROLL 245 The UIScrollView Class 245 Scroll Views and Text Fields 248 Try It 249 Lesson Requirements 249 Hints 250 Step-by-Step 250 LESSON 20: POPOVERS AND MODAL VIEWS 257 Popovers 257 Modal Views 260 Try It 262 Lesson Requirements 262 Hints 263 Step-by-Step 263 LESSON 21: TOUCHES AND GESTURES 269 Touch Events 269 Gesture Recognizers 270 Try It 271 Lesson Requirements 271 Hints 272 Step-by-Step 272 SECTION III: STORING DATA AND NETWORK PROGRAMMING LESSON 22: PROPERTY LISTS 277 Creating Property Lists 277 Reading Property Lists 279 Try It 280 Lesson Requirements 280 Hints 280 Step-by-Step 280 LESSON 23: APPLICATION SETTINGS 285 Adding a Settings Bundle 285 Reading Preferences with Code 289 Try It 290 Lesson Requirements 290 Hints 290 Step-by-Step 291 LESSON 24: INTRODUCTION TO iCLOUD STORAGE 295 Basic Concepts 295 Preparing to Use the iCloud Storage APIs 297 Creating an iCloud-Enabled App ID 297 Creating an Appropriate Provisioning Profi le 302 Enabling Appropriate Entitlements in Your Xcode Project 308 Checking for Service Availability 309 Using iCloud Document Storage 310 Creating a New iCloud Document 311 Opening an Existing Document 312 Saving a Document 312 Searching for Documents on iCloud 313 Try It 315 Lesson Requirements 315 Hints 316 Step-by-Step 316 LESSON 25: INTRODUCTION TO CLOUDKIT 327 Containers, Databases, and Records 327 Development and Production Environments 330 The CloudKit Dashboard 331 Creating a Record Type 331 Deleting a Record Type 333 Creating Relationships Between Record Types 333 Adding Records 334 Modifying and Deleting Records 336 Resetting the Development Schema 337 Deploying to Production 337 Preparing to Use CloudKit 338 Create an iCloud-Enabled App ID 338 Create an Appropriate Provisioning Profi le 344 Enable Appropriate Entitlements in Your Xcode Project 350 Common Operations 350 Checking for Service Availability 351 Creating Records Programmatically 351 Retrieving Records 352 Try It 352 Lesson Requirements 353 Hints 353 Step-by-Step 353 LESSON 26: INTRODUCTION TO CORE DATA 381 Basic Concepts 381 Managed Object 381 Managed Object Context 381 Persistent Store Coordinator 382 Entity Description 383 Managed Object Model 383 Adding Core Data to a Project 384 Instantiating Core Data Objects 389 Writing Managed Objects 390 Reading Managed Objects 391 Try It 391 Lesson Requirements 391 Hints 392 Step-by-Step 392 LESSON 27: CONSUMING RESTful JSON WEB SERVICES 399 Types of Web Services 400 RESTful Web Services 400 SOAP Web Services 401 JSON and NSJSONSerialization 401 NSURLSession and Application Transport Security 403 Creating an NSURLSession 404 Creating a Data Task 405 Application Transport Security 406 Try It 408 Lesson Requirements 408 Hints 409 Step-by-Step 409 SECTION IV: BEYOND THE BASICS LESSON 28: SOCIAL MEDIA INTEGRATION 417 The Share Sheet 418 Try It 421 Lesson Requirements 421 Hints 421 Step-by-Step 422 LESSON 29: WHERE Am I? INTRODUCING CORE LOCATION 427 Permissions 428 Accuracy 430 Receiving Location Updates 431 Handling Errors and Checking Hardware Availability 433 Geocoding and Reverse Geocoding 434 Obtaining Compass Headings 435 Try It 436 Lesson Requirements 436 Hints 437 Step-by-Step 437 LESSON 30: INTRODUCTION TO MAP KIT 443 Adding Annotations 444 Accessory Views 447 Try It 447 Lesson Requirements 448 Hints 448 Step-by-Step 449 LESSON 31: USING THE CAMERA AND PHOTO LIBRARY 455 Selecting the Image Source 456 Presenting the Image Picker 456 Try It 459 Lesson Requirements 459 Hints 459 Step-by-Step 459 LESSON 32: INTRODUCTION TO USER INTERFACE TESTING 465 Adding Support for UI Testing to Your Project 465 Anatomy of a Test Case 468 New Classes for UI Testing 469 XCUIApplication 469 XCUIDevice 470 XCUIElementQuery 471 XCUIElement 472 XCUIElementAttributes 475 XCUIElementTypeQueryProvider 476 Test Assertions 477 UI Recording 478 Waiting for Elements in a UI Test 479 Try It 480 Lesson Requirements 480 Hints 480 Step-by-Step 481 LESSON 33: INTRODUCTION TO TEST DRIVEN DEVELOPMENT 485 Adding Support for Unit Testing to Your Project 486 TDD Techniques 488 Test First 488 Red-Green-Refactor 488 Don't Write Code You Do Not Yet Need 489 Anatomy of a Test Case 489 Test Assertions 491 Try It 493 Lesson Requirements 493 Hints 493 Step-by-Step 494 SECTION V: REFERENCE APPENDIX A: TESTING YOUR APP ON A DEVICE 507 APPENDIX B: BETA TESTING WITH TESTFLIGHT 527 APPENDIX C: APP STORE DISTRIBUTION 553 INDEX 569