Player Bar Part 2

We take our player bar and install it into a custom tab bar. To do this we have to create a custom tab bar controller and tab bar subclass and mix it with just a little bit of questionable UIKit hackery to get it to layout how we want. We'll talk about the tradeoffs for different approaches as well as see some useful debugging tips when a button isn't responding to taps.

This is a companion discussion topic for the original entry at https://nsscreencast.com/episodes/408-podcast-app-player-bar-2