how do i add a horizontal scrolling section to my uicollectionview

Asked on 2024-07-30

1 search

To add a horizontal scrolling section to your UICollectionView, you can follow the approach discussed in the WWDC sessions. Here are the steps you can take:

  1. Use a Horizontally Scrolling Stack: You can create a horizontally scrolling stack using a LazyHStack embedded in a ScrollView. This will allow your content to flow horizontally and align with the safe area bounds of the screen.

  2. Disable Scroll Clipping: Make sure to disable scroll clipping on the scroll view so that your focused items can grow and cast their drop shadows outside the bounds of the scroll view itself.

  3. Aspect Ratio for Items: Instead of specifying an exact size for each item's image, you can use an aspect ratio derived from the image itself to ensure it scales properly.

Here is a code snippet to illustrate this:

ScrollView(.horizontal, showsIndicators: false) {
    LazyHStack(spacing: 16) {
        ForEach(items) { item in
            Button(action: {
                // Handle button action
            }) {
                Image(item.imageName)
                    .resizable()
                    .aspectRatio(contentMode: .fit)
                    .frame(height: 200)
                    .cornerRadius(8)
                    .shadow(radius: 4)
            }
            .buttonStyle(BorderlessButtonStyle())
        }
    }
    .padding(.horizontal)
}

This approach is discussed in the session Migrate your TVML app to SwiftUI under the "Shelves" chapter.

For more advanced techniques and examples, you can refer to the session Create custom visual effects with SwiftUI under the "Scroll effects" chapter, where custom scroll effects and transitions are explored.

Relevant Sessions

  1. Migrate your TVML app to SwiftUI
  2. Create custom visual effects with SwiftUI