How does Booking.com close their app programmatically?

Question

I just saw this trick the Booking.com app does to let you change the application\'s language:

I\'m not aware of any technique to programmatically

Answer 1

You can try

// after change language dim display and follow it with this snippet
DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) {
    UIApplication.shared.perform(#selector(NSXPCConnection.suspend))
     DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
      exit(0)
     }
}

I have done it many times in similar cases and the app accepted without rejection