SwiftUI For Dummies

Informationen zum Autor Wei-Meng Lee (Singapore) is founder of Developer Learning Solutions, a firm specializing in hands-on training for software developers. He teaches courses in mobile development, blockchain, machine learning, and AI. He is author of a number of books, including Beginning Swift Programming (Wiley). Klappentext The simplest way to create world-class appsHave a unique app idea but worried you don't quite have the coding skills to build it? Good news: You can stop fretting about someone beating you to market with the same idea and start work right now using SwiftUI. SwiftUI is a gateway app development framework that has become one of the best ways for fledgling developers to get iOS apps off the ground without having to become a coding expert overnight.SwiftUI For Dummies makes that process even faster, providing a friendly introduction to the SwiftUI and Swift programming language and helping you feel right at home creating and building with playgrounds. The book also covers the frameworks and APIs that make it so easy to create smooth, intuitive interfaces--just dive right in and have fun! Combine projects into workspaces Employ Xcode editing tools Use constants and variables Test your code on iOS SimulatorTime is of the essence, and with SwiftUI For Dummies, it's also on your side. Get going with this friendly guide today, and you'll be celebrating the successful launch of your app way before you thought possible! Zusammenfassung Create the app of your dreams with SwiftUIYou have that sweet! sweet app idea but think you don't yet have the coding skills to build it? Don't fret about someone beating you to it: get going with your idea today using SwiftUI. SwiftUI makes it fast and simple for fledgling coders to take flight and develop world class iOS apps that soar above the rest--without having to learn all the tricks of coding right away.Swift UI for Dummies has all you need to know! showing you how to quickly get a feel for coding rules! syntax! and tools! and to develop your basic knowledge in Swift 5.0 playgrounds. It also covers the frameworks and APIs that allow you to create smooth! intuitive interfaces with no trouble at all--just dive in and you'll be posting your first application in record time. Combining projects into workspaces and creating playgrounds Employing Xcode editing tools Using constants and variables and work with optional types Testing your code on iOS SimulatorThe time is ripe--pick up this friendly guide and you'll soon see your iOS app ideas join 350!000 others (and counting) built using Swift. Inhaltsverzeichnis Introduction 1 About This Book 1 Foolish Assumptions 2 Icons Used in This Book 2 Beyond the Book 3 Where to Go from Here 3 Part 1: Getting Started with Swift and SwiftUI 5 Chapter 1: Introducing SwiftUI 7 Understanding What SwiftUI Is 7 Getting the Tools 11 Hello, SwiftUI 12 Automatically previewing your user interface using the canvas 14 Working with Live Preview 18 Generating different previews 19 The Gory Details 21 Info plist 22 AppDelegate swift 22 SceneDelegate swift 23 Chapter 2: Basics of the Swift Programming Language 25 Basic Swift Syntax 26 Constants 26 Variables 27 Strings 27 Comments 27 Basic Data Types 28 Integers 28 Floating-point numbers 29 Booleans 29 Tuples 30 Arrays 30 Retrieving elements from an array 31 Inserting elements into an array 31 Modifying elements in an array 31 Appending elements to an array 31 Removing elements from an array 32 Dictionaries 32 Retrieving elements from a dictionary 32 Modifying an item in a dictionary 33 Remo...

Auteur

Wei-Meng Lee (Singapore) is founder of Developer Learning Solutions, a firm specializing in hands-on training for software developers. He teaches courses in mobile development, blockchain, machine learning, and AI. He is author of a number of books, including Beginning Swift Programming (Wiley).

Texte du rabat

The simplest way to create world-class apps Have a unique app idea but worried you don't quite have the coding skills to build it? Good news: You can stop fretting about someone beating you to market with the same idea and start work right now using SwiftUI. SwiftUI is a gateway app development framework that has become one of the best ways for fledgling developers to get iOS apps off the ground without having to become a coding expert overnight. SwiftUI For Dummies makes that process even faster, providing a friendly introduction to the SwiftUI and Swift programming language and helping you feel right at home creating and building with playgrounds. The book also covers the frameworks and APIs that make it so easy to create smooth, intuitive interfaces--just dive right in and have fun! Combine projects into workspaces Employ Xcode editing tools Use constants and variables Test your code on iOS Simulator Time is of the essence, and with SwiftUI For Dummies, it's also on your side. Get going with this friendly guide today, and you'll be celebrating the successful launch of your app way before you thought possible!

Contenu

Introduction 1

About This Book 1

Foolish Assumptions 2

Icons Used in This Book 2

Beyond the Book 3

Where to Go from Here 3

Part 1: Getting Started with Swift and SwiftUI 5

Chapter 1: Introducing SwiftUI 7

Understanding What SwiftUI Is 7

Getting the Tools 11

Hello, SwiftUI 12

Automatically previewing your user interface using the canvas 14

Working with Live Preview 18

Generating different previews 19

The Gory Details 21

Info plist 22

AppDelegate swift 22

SceneDelegate swift 23

Chapter 2: Basics of the Swift Programming Language 25

Basic Swift Syntax 26

Constants 26

Variables 27

Strings 27

Comments 27

Basic Data Types 28

Integers 28

Floating-point numbers 29

Booleans 29

Tuples 30

Arrays 30

Retrieving elements from an array 31

Inserting elements into an array 31

Modifying elements in an array 31

Appending elements to an array 31

Removing elements from an array 32

Dictionaries 32

Retrieving elements from a dictionary 32

Modifying an item in a dictionary 33

Removing an item from a dictionary 33

Optional Types 33

Working with implicitly unwrapped optionals 35

Using optional binding 36

Unwrapping optionals using "?" 36

Using the nil coalescing operator 37

Functions 38

Understanding input parameters 38

Returning a value 39

Flow Control 39

If-Else statement 40

Ternary conditional operator 40

Switch statement 40

Looping 41

For-In loop 42

While loop 42

Repeat-While loop 42

Control transfer statements 42

Range operators 43

Structures 43

Memberwise initializers 44

Structures as value types 45

Classes 47

Defining a class 47

Understanding properties 47

Using methods in classes 49

Trying out the self property 50

Closures 51

Understanding closures 51

Using functions as closures 52

Assigning closures to variables 52

Writing closures inline 53

Understanding type inference 53

Using shorthand argument names 54

Working with the operator function 54

Using trailing closures 55

Protocols 55

Defining and using a protocol 56

Conforming to a protocol 56

Using the Codable protocol 57

Using the some keyword 59

Part 2: Understanding the Basics of SwiftUI 61

Chapter 3: Getting Started with the Basics of SwiftUI 63

Taking a Look at SwiftUI Views 63

Conforming to the View protocol 64

Using modifiers 66

Stacking modifiers 66

Using the Inspector 67

Displaying an Image 70

Using modifiers on the Image view 72

Resizing images 73

Displaying a Button 75

Customizing the button 76

Adding actions 77

Stacking the Views 78

VStack 79

HStack 80

Putting on the Finishing Touches 85

Chapter 4: Handling User Inputs and Custom Views 87

Looking at Input …