How to get translucent lists on macOS
Updated for Xcode 12.0
One subtle but important feature of macOS is the way sidebars are automatically made slightly transparent when a window is active, then made opaque when the window moves to the background – it’s a small hint to the user which window is active, but also lets a little of their background show through, giving them a little context of their environment.
SwiftUI allows us to create these translucent sidebars using the listStyle() modifier on List, passing in SidebarListStyle(), like this:
List(1..<51) {
Text("\($0)")
}
.listStyle(SidebarListStyle())There’s nothing stopping you from using that with any list, but the clue is in the name: it’s specifically designed for lists that are shown on the side of your main window, as you can see in Xcode’s navigators.
Note: this is available only on macOS.
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