What is new about scrollview

Apple introduced several new features and enhancements for ScrollView in SwiftUI at WWDC 2024. Here are some of the key updates:

1. New Modifiers for ScrollView:

   • onScrollVisibilityChange: This modifier allows you to detect when a view's visibility changes due to scrolling. This can be used to create dynamic experiences, such as hiding or showing elements based on their scroll position. For example, you can remove a background image when the header section scrolls off-screen (Migrate your TVML app to SwiftUI).
   • onScrollGeometryChange: This modifier lets you react to changes in the scroll view's content, such as offsets and content size, enabling more responsive and interactive designs (What’s new in SwiftUI).

2. Scroll Target Behavior:

   • You can now set the scroll target behavior to be view-aligned, which helps in making transitions more definite and smooth (Migrate your TVML app to SwiftUI).

3. Programmatic Control:

   • Enhanced programmatic control over scroll positions, including the ability to scroll to specific positions like the top edge. This provides more flexibility in managing the scroll view's behavior (What’s new in SwiftUI).

4. Scroll Transitions:

   • The scrollTransition modifier allows for creating custom scroll effects, such as parallax effects, rotation, and other visual transformations based on the scroll position. This can be used to create unique and engaging scroll experiences (Create custom visual effects with SwiftUI).

5. Visual Effects:

   • You can now apply various visual effects to elements within a scroll view, such as scaling, fading, and blurring, based on their position within the scroll view. This helps in creating more dynamic and visually appealing interfaces (Create custom visual effects with SwiftUI).

For a deeper dive into these features, you can refer to the following sessions:

• What’s new in SwiftUI
• Migrate your TVML app to SwiftUI
• Create custom visual effects with SwiftUI