lists or scrollview

Generated on 8/3/2024

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Lists and ScrollViews in SwiftUI

Lists

  • Session: SwiftUI essentials
    • Lists in SwiftUI are powerful tools for view composition. They can be initialized with a collection parameter, which is a convenience for creating a ForEach view. This allows for generating views for each element in a collection and providing those to its container.
    • Lists can be customized with view modifiers, such as adding swipe actions to each row.
    • Lists support sections using SwiftUI's Section view, which can include optional headers and footers.

ScrollViews

  • Session: Migrate your TVML app to SwiftUI

    • ScrollViews are used to create horizontally or vertically scrolling content. For example, a horizontally scrolling stack can be created using a LazyHStack embedded in a ScrollView.
    • New in tvOS 18 are several view modifiers specific to ScrollView, such as the onScrollVisibilityChange modifier, which can be used to change the state when a header section scrolls off-screen.
    • ScrollViews can also be customized to remove background images when content moves below the fold, and to align scroll targets for smoother transitions.
  • Session: Create custom visual effects with SwiftUI

    • Scroll transitions can be used to create dynamic visual effects, such as parallax effects, by changing the x-offset of an image while keeping the clipping shape static.
    • Scroll transitions can also be applied to other content, such as text captions, to create unique scroll experiences.

Additional Resources

  • Session: Demystify SwiftUI containers
    • Custom containers can be created to support sections and other advanced features. For example, a list can be customized to include headers and footers, and to modify the content of the container based on certain conditions.

Relevant Sessions

  1. SwiftUI essentials
  2. Migrate your TVML app to SwiftUI
  3. Create custom visual effects with SwiftUI
  4. Demystify SwiftUI containers

These sessions provide a comprehensive overview of how to use lists and scroll views in SwiftUI, along with advanced customization techniques.