The goal of this book is to teach the skills necessary to build i OS 14 applications using Swift UI, Xcode 12 and the Swift 5.3 programming language.
Beginning with the basics, this book provides an outline of the steps necessary to set up an i OS development environment together with an introduction to the use of Swift Playgrounds to learn and experiment with Swift.
The book also includes in-depth chapters introducing the Swift 5.3 programming language including data types, control flow, functions, object-oriented programming, property wrappers and error handling.
An introduction to the key concepts of Swift UI and project architecture is followed by a guided tour of Xcode in Swift UI development mode. The book also covers the creation of custom Swift UI views and explains how these views are combined to create user interface layouts including the use of stacks, frames and forms.
Other topics covered include data handling using state properties in addition to observable, state and environment objects, as are key user interface design concepts such as modifiers, lists, tabbed views, context menus, user interface navigation, and outline groups.
The book also includes chapters covering graphics drawing, user interface animation, view transitions and gesture handling, Widget Kit, document-based apps and Siri Kit integration.
Chapters are also provided explaining how to integrate Swift UI views into existing UIKit-based projects and explains the integration of UIKit code into Swift UI.
Finally, the book explains how to package up a completed app and upload it to the App Store for publication. Along the way, the topics covered in the book are put into practice through detailed tutorials, the source code for which is also available for download.
The aim of this book, therefore, is to teach you the skills necessary to build your own apps for i OS 14 using Swift UI. Assuming you are ready to download the i OS 14 SDK and Xcode 12 and have an Apple Mac system you are ready to get started.
