swift dark mode code example

Example 1: disable dark mode swift

if #available(iOS 13.0, *) {
          UIWindow.appearance().overrideUserInterfaceStyle = .light
      }

Example 2: make preivew in dark mode swiftui

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView().preferredColorScheme(.dark)
    }
}