How do I start with SwiftUI

To get started with SwiftUI, you can follow these steps:

Launch Xcode: Begin by opening Xcode and creating a new project. You can choose a template that uses SwiftUI.
Understand the Basics: SwiftUI is a declarative framework, which means you describe what your UI should look like and SwiftUI takes care of rendering it. Views are the basic building blocks in SwiftUI. They are declarative, compositional, and state-driven.
Learn the Fundamentals: Start by understanding how views work. Views in SwiftUI are expressed declaratively. For example, you can create text, images, and controls like buttons using simple SwiftUI code. Here's a basic example:
```
VStack {
    Text("Hello, World!")
    Button(action: {
        print("Button tapped")
    }) {
        Text("Tap me")
    }
}
```
This code creates a vertical stack with a text label and a button.
Explore Built-in Capabilities: SwiftUI comes with a wide range of built-in capabilities such as navigation, split views, customizable tables, and more. You can also create custom experiences using low-level APIs for control styles, canvas drawing, and even Metal shaders.
Use Xcode Previews: Xcode previews allow you to see how your views look in different contexts without running the app repeatedly. This feature supports dark mode, dynamic type, and localization, making it easier to adapt your app for various environments.
Incremental Adoption: You don't need to rewrite your entire app in SwiftUI. You can incrementally adopt SwiftUI in your existing app, integrating it with other frameworks as needed.
Follow Tutorials and Documentation: Apple provides excellent tutorials and documentation to help you learn SwiftUI. These resources guide you through building different apps and understanding the framework's capabilities.

For a detailed introduction and to see these concepts in action, you can watch the SwiftUI essentials session from WWDC 2024.

Relevant Sessions

These sessions provide a comprehensive overview of SwiftUI and its capabilities across different Apple platforms.