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īJ Miller is an iOS developer for a consultancy in the Cleveland, Ohio, area.
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Code examples will be updated as progressions in the Swift language and Xcode environment change.
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Feel free to experiment along the way with your own apps, or use this book for reference if you are stuck in an app of your own and need some guidance.Īlso remember that this book is current as of Swift 1.0 and Xcode 6.0.1, so please understand that changes may be made after this book has gone through final edits and been printed. You also do not need to read this book from cover to cover before attempting to write apps of your own using Swift. Apps should be written with careful planning and development, and depending on how many different technologies your app includes, you may need more resources. Rather, there are more components to writing apps, particularly the Cocoa and Cocoa Touch frameworks, which deserve books in their own right (and many exist). Such a book would be thousands of pages long.
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You should not expect to be able to write award-winning iOS or Mac apps right out of the gate by just reading this book alone, as this book is not meant to be a one-stop-shop for learning everything about app creation. By the time you complete this book you should have a firm grasp on many of the concepts in Swift including the syntax to make them come to fruition. This book is a guided tour of the Swift programming language, discussing some of the ins-and-outs of Swift, best practices, do’s-and-don’ts, and more. Updates are coming from Apple rather quickly, so if something is not available that you need or if something is not working as expected, consider filing a bug or feature request at. More Mac support is coming in future releases. Swift can be written for apps running on OS X Yosemite, but as of Xcode 6.0.1, the option for adding Swift files to an Objective-C project, or even creating a Mac app using Swift are not available. Swift is already proving to be a great language and as of its release is compatible with iOS 7 and up. Also, all the code examples from this book are available and will be kept up-to-date in the GitHub repository.
If there are changes that you find in these examples that do not work as described or with screenshots, please check Apple’s release documentation and electronic versions of this book as they can get updated a lot faster than the printed book you may have in your hands. With that said, this book is current as of Swift 1.0 and Xcode 6.0.1. Swift is officially at version 1.0 but is still evolving, and even as this book is being written more changes are entering beta. Touted to be “Objective-C without the C,” Swift builds upon familiar concepts from Objective-C but includes a more modern, safer syntax and multiple paradigms such as object-oriented, functional, imperative, and block structured. Swift is not just an object-oriented language, but it introduces features gleaned from other languages, such as C#, Haskell, Ruby, and more. People were ready for change.īut a new language brings not only syntactic differences but also idiomatic differences and new conventions. Twitter lit up with tweets about Swift, domain names with Swift in the title were being bought up left and right, and within 24 hours of the announcement more than 300,000 copies of Apple’s Swift iBook had been downloaded. The excitement surrounding this language was palpable. This was a huge announcement Objective-C had been the primary language of choice for developing most Mac and iOS apps for many years. HOUR 24: Learning Swift’s Standard Library Functions IntroductionĪt Apple’s yearly World Wide Developer Conference (WWDC) in June 2014, Apple announced a new programming language called Swift that the company had been developing since 2010. HOUR 23: Asynchronous Programming in Swift HOUR 22: Interacting with User Interfaces
HOUR 21: Adding Interoperability with Objective-C HOUR 18: Using Extensions to Add Type Functionality HOUR 17: Using Protocols to Define Behavior HOUR 16: Understanding Memory Allocation and References HOUR 15: Adding Advanced Type Functionality
HOUR 13: Customizing Initializers of Classes, Structs, and Enums HOUR 10: Learning About Structs and Classes HOUR 9: Understanding Higher Order Functions and Closures HOUR 8: Using Functions to Perform Actions HOUR 6: Controlling Program Flow with Conditionals HOUR 4: Working with Collection Types (Arrays and Dictionaries) HOUR 2: Learning Swift’s Fundamental Data Types
HOUR 1: Introducing the Swift Development Environment As we learn in the previous post, the background modifier gets the size from the view that is modified.ISBN: 978-0-13-413324-9Copyright © 2015 by Pearson Education, Inc. Let's see why I said the background modifier is not the right choice for setting screen background. Sponsor and reach thousands of iOS developers.