Chapter challenge

- [Instructor] Right now, our onboarding screen…is looking nice and smooth, but when we select Register…and then re-select Sign In, our segmented controller…doesn't actually update our UI.…It just stays in the Register state.…For this challenge, your job is to write a function…that will animate the Continue button back…to its original position and remove the phone text field…with a transition effect.…Now remember that transitions deal…with manipulating the view hierarchy.…When you add a view, all you need to do…is add a sub view to the target container,…which we've already done.…

However, when removing a view,…you need to delete it from the entire super view…with the function remove from super view.…This challenge shouldn't take you…more than five to 10 minutes, or thereabouts,…so if you get stuck, just jump ahead to the solution.…Good luck and happy coding.…