Thinking in SwiftUI

A Transition Guide SwiftUI is radically different from UIKit. So in this short book, we will help you build a mental model of how SwiftUI works. We explain the most important concepts in detail, and we follow them up with exercises to give you hands-on experience. SwiftUI is still a young framework, and as such, we dont believe its appropriate to write a complete reference. Instead, this book focuses on transitioning your way of thinking from the object-oriented style of UIKit to the declarative style of SwiftUI. Thinking in SwiftUI is geared toward readers who are familiar with Swift and who have experience building apps in frameworks like UIKit. Overview View Construction View Layout View Updates Takeaways View Updates Updating the View Tree State Property Attributes Takeaways Exercises Environment How the Environment Works Using the Environment Dependency Injection Preferences Takeaways Exercises Layout Elementary Views Layout Modifiers Stack Views Organizing Layout Code Takeaways Exercises Custom Layout Geometry Readers Anchors Custom Layouts Takeaways Exercises Animations Implicit Animations How Animations Work Explicit Animations Custom Animations Takeaways Exercises Conclusion Exercise Solutions Chapter 2: View Updates Chapter 3: Environment Chapter 4: View Layout Chapter 5: Custom Layout Chapter 6: Animations