How to set an Environment Object in preview

Question

My view needs an environment object which is set in the SceneDelegate by adding it to the window.rootViewController. How can I set an environment object to be used for the preview?

Answer 1

You add it using .environmentObject(_:) modifier:

struct ContentView_Previews: PreviewProvider {

    static var previews: some View {
        ContentView()
            .environmentObject(YourObject())
    }
}