Two important things happened here.
Firstly, we defined an Animator in XML. This is kind of useful, but it's not such an easy format to work with as the tween animation format. However,
FragmentTransactions do not allow us to specify a tween that was declared in Java, so we have to take this route.
Secondly, we used the Animator on a
FragmentTransaction, so that it would be applied when our new Fragment was added to the screen.
Oh yeah, and those interesting facts about the solar system? Some of them aren't true. I'm sorry.