Smooth Pop Transition in NavigationSplitView

In a compact environment (iPhone), navigating from content back to sidebar in a SwiftUI NavigationSplitView is causing a pop transition. The dismissed content view navigates out to the right.

If you experience lag during that transition it might be due to the way you select the content.

@State private var appSection: AppSectionEnum?

NavigationSplitView {
  SidebarView(selection: $appSection)
} content: {
  switch appSection {
    case .search:
      SearchView()
    case .articles:
      ArticlesView()
    case .images:
      ImageView()
    default:
      // ArticlesView() DON'T DO THIS
      EmptyView() // THIS IS BETTER
  }
}

Be sure to not create an expensive view for the content part, if nothing is selected (for example by creating a default article list view in a switch default-case like shown here).

On navigating back, the content view gets rebuilt because the appSection change invalidates the NavigationSplitView. So use something lightweight or even the SwiftUI standard EmptyView().