Android Set Custom Animations

I've been trying to follow the android flip card tutorial. As instructed, I created four custom animator sets card_flip_right_in.xml: getFragmentManager() and we sensible programmers are trying to use getSupportFragmentManager().

Unfortunately, getSupportFragmentManager().setCustomAnimations() signature is different. Additionally, objectAnimator is incompatible with getSupportFragmentManager().setCustomAnimations()

In short, Google created a useless card-flip demo. If you search around, you'll see that a lot of people have encountered the same problem.

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solution: use of "Android Support Library v4 with NineOldAndroids" library https://stackoverflow.com/a/18511350/550471

of course it makes sense that Google's support library needs support with exposing functionality. LOL