Thank you son much, great tutorial Catie & Jessy… Advanced topics explained in a simple, easy to follow way… it certantly will improve the UI & Ux of my apps.
This tutorial seems little behind for Xcode 11 so it might need updating. When/if it gets updated I would like to suggest that you slow down when doing interactions with Xcode. I often have to slow the playback to .5 while you are showing things in Xcode and then speed it up when you start lecturing again.