Jump into the app development world with confidence! iOS Swift 24-Hour Trainer combines book and video lessons in Apple's Swift programming language to prepare you to build iPhone and iPad apps--and distribute them through the Appstore. First, this approachable text covers the fundamentals of Swift by introducing you to iOS development in this language, and presenting best practices for setting up a development environment and using variables, statements, expressions, operators, functions, and closures. Next, you explore common tasks, such as alert views, table views, and collection views. You then deepen your knowledge of Swift by considering network programming and local data storage. Finally, this engaging resource dives into slightly more advanced concepts, such as tab bars, web views, the accelerometer, camera, photo library, Google maps, and core location. Swift was designed by Apple to incorporate modern scripting features while offering simpler, cleaner syntax than Objective-C to maintain a minimal and easy to read style. This more expressive code offers numerous key features, such as closures unified with function pointers, tuples and multiple value returns, generics, and functional programming patterns. * Learn how to obtain a device UDID * Test your applications on an actual device, so you can see your work in action * Distribute your applications outside of the App store, allowing you to test your work with real users * Review common reasons why apps are rejected by Apple to strengthen your case when submitting your apps for distribution iOS Swift 24-Hour Trainer is an essential guide to Apple's Swift programming language for beginning programmers.

Abhishek Mishra has been developing software for over 18 years and has experience with a diverse set of programming languages and platforms. He is the author of "iPhone and iPad App 24-Hour Trainer" and the technical reviewer of "Professional iOS Programming." He holds a Master's degree in Computer Science from the University of London and is a freelance consultant and trainer specializing in mobile application development.

Wrox guides are crafted to make learning programming languages and technologies easier than you think. Written by programmers for programmers, they provide a structured, tutorial format that will guide you through all the techniques involved.

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Jump into the app development world with confidence!

iOS Swift 24-Hour Trainer combines book and video lessons in Apple's Swift programming language to prepare you to build iPhone and iPad apps--and distribute them through the Appstore. First, this approachable text covers the fundamentals of Swift by introducing you to iOS development in this language, and presenting best practices for setting up a development environment and using variables, statements, expressions, operators, functions, and closures. Next, you explore common tasks, such as alert views, table views, and collection views. You then deepen your knowledge of Swift by considering network programming and local data storage. Finally, this engaging resource dives into slightly more advanced concepts, such as tab bars, web views, the accelerometer, camera, photo library, Google maps, and core location.

Swift was designed by Apple to incorporate modern scripting features while offering simpler, cleaner syntax than Objective-C to maintain a minimal and easy to read style. This more expressive code offers numerous key features, such as closures unified with function pointers, tuples and multiple value returns, generics, and functional programming patterns.

* Learn how to obtain a device UDID

* Test your applications on an actual device, so you can see your work in action

* Distribute your applications outside of the App store, allowing you to test your work with real users

* Review common reasons why apps are rejected by Apple to strengthen your case when submitting your apps for distribution

iOS Swift 24-Hour Trainer is an essential guide to Apple's Swift programming language for beginning programmers.

iOS Swift 24-Hour Trainer combines book and video lessons in Apple's Swift programming language to prepare you to build iPhone and iPad appsand distribute them through the Appstore. First, this approachable text covers the fundamentals of Swift by introducing you to iOS development in this language, and presenting best practices for setting up a development environment and using variables, statements, expressions, operators, functions, and closures. Next, you explore common tasks, such as alert views, table views, and collection views. You then deepen your knowledge of Swift by considering network programming and local data storage. Finally, this engaging resource dives into slightly more advanced concepts, such as tab bars, web views, the accelerometer, camera, photo library, Google maps, and core location.

Swift was designed by Apple to incorporate modern scripting features while offering simpler, cleaner syntax than Objective-C to maintain a minimal and easy to read style. This more expressive code offers numerous key features, such as closures unified with function pointers, tuples and multiple value returns, generics, and functional programming patterns.

• Learn how to obtain a device UDID
• Test your applications on an actual device, so you can see your work in action
• Distribute your applications outside of the App store, allowing you to test your work with real users
• Review common reasons why apps are rejected by Apple to strengthen your case when submitting your apps for distribution

iOS Swift 24-Hour Trainer is an essential guide to Apple's Swift programming language for beginning programmers.

Inhalt
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 an…