16.2 SwiftUI Declarative Syntax
SwiftUI introduces a declarative syntax that provides an entirely different way of implementing user interface layouts and behavior from the UIKit and Interface Builder approach. Instead of manually designing the intricate details of the layout and appearance of components that make up a scene, SwiftUI allows the scenes to be described using a simple and intuitive syntax. In other words, SwiftUI allows layouts to be created by declaring how the user interface should appear without having to worry about the complexity of how the layout is actually built.
This essentially involves declaring the components to be included in the layout, stating the kind of layout manager in which they are to be contained (vertical stack, horizontal stack, form, list etc.) and using modifiers to set attributes such as the text on a button, the foreground color of a label, or the method to be called in the event of a tap gesture. Having made these declarations, all the...
