Welcome to the second part of the build a swift app: Quiz App series. If you haven’t already, make sure you check out part 1 where we go through setting up the user interface and hooking up the buttons and the labels. In this part we will start actually coding and getting some functionality for our app.
Inspired by the above animation, we are going to create a custom animated UIButton. I hope that by the end of this tutorial you'll be able to, at least, understand some of the important steps when it comes to coding animations.