what is behind Swiftui

SwiftUI is Apple's declarative user interface framework designed to build apps across all of Apple's platforms. It is built on the principles of declarative, compositional, and state-driven views, allowing developers to focus on describing the UI they want rather than how to build it. This approach enables SwiftUI to handle details like dark mode, dynamic type, and tracking changes in the model.

Key Features of SwiftUI:

1. Declarative Syntax: Developers describe the UI and SwiftUI takes care of the rendering and updates.
2. Interoperability: SwiftUI can seamlessly interoperate with UIKit and AppKit, allowing for incremental adoption in existing apps.
3. Customization: A large set of modifiers and protocols allows for fine-tuning the look and feel of the UI.
4. Cross-Platform: SwiftUI enables code sharing across different Apple platforms, including iOS, macOS, watchOS, tvOS, and visionOS.
5. Advanced Features: Includes support for custom containers, mesh gradients, scrolling customizations, and more.
6. Integration with Other Frameworks: SwiftUI works well with other frameworks like Swift Data for persistent models and Swift Charts for data visualization.

Examples of SwiftUI in Use:

• New Apps: Apps like Image Playground and the new Passwords app are built entirely with SwiftUI.
• Existing Apps: SwiftUI is used for new features in existing apps, such as the redesigned elements in the Photos app.
• System Experiences: Core system experiences like Control Center, Notification Center, and Finder use SwiftUI extensively.

Sessions Mentioned:

1. Platforms State of the Union
2. SwiftUI essentials
3. Migrate your TVML app to SwiftUI

For more detailed information, you can refer to the Platforms State of the Union session starting at 35:23.