how to add accessibilityIdentifier to all view on screen

To add accessibilityIdentifier to all views on the screen in SwiftUI, you can use the accessibilityIdentifier modifier. This modifier allows you to set a unique identifier for each view, which can be useful for UI testing.

Here's a basic example of how to apply accessibilityIdentifier to different views:

import SwiftUI

struct ContentView: View {
    var body: some View {
        VStack {
            Text("Hello, World!")
                .accessibilityIdentifier("greetingText")
            
            Button(action: {
                print("Button tapped")
            }) {
                Text("Tap me")
            }
            .accessibilityIdentifier("tapButton")
            
            Image(systemName: "star")
                .accessibilityIdentifier("starImage")
        }
    }
}

In this example:

• The Text view has an accessibilityIdentifier of "greetingText".
• The Button view has an accessibilityIdentifier of "tapButton".
• The Image view has an accessibilityIdentifier of "starImage".

For more detailed information on how to customize the accessibility of your views, you can refer to the session Catch up on accessibility in SwiftUI from WWDC 2024. This session covers how to use accessibility modifiers to improve the accessibility of your SwiftUI views.