what is the best way to create new collection view layout in swift UI

To create a new collection view layout in SwiftUI, you can utilize the flexibility of SwiftUI's container views and composition techniques. Here are some steps and concepts from the WWDC sessions that can guide you:

1. Use of LazyVGrid: In the session "Migrate your TVML app to SwiftUI," a LazyVGrid is used to create a grid layout. You can define the number of columns and spacing, and let SwiftUI handle the layout sizing. This is a good starting point for creating a collection view layout.

2. Dynamic Layouts: The session "Get started with Dynamic Type" discusses using dynamic layouts that adapt to different text sizes. You can use environment keys like dynamicTypeSize to adjust your layout based on accessibility settings, which can be particularly useful for creating responsive collection views.

3. View Composition: The session "Demystify SwiftUI containers" highlights the importance of view composition. You can use ForEach to iterate over your data and create views dynamically. This allows you to build complex layouts by composing smaller views together.

4. Custom Containers: If you need more control, you can create custom container views. The session "Demystify SwiftUI containers" explains how to build custom containers using view builders, which can support advanced features like sections and custom modifiers.

For a practical example, you might start by defining a LazyVGrid with a specified number of columns and use a ForEach loop to populate it with your data. You can then apply view modifiers to customize the appearance and behavior of your collection view.

For more detailed guidance, you can refer to the session Demystify SwiftUI containers (03:07) which provides insights into building custom container views in SwiftUI.