Animation will be repeated when jump from the current App to the second App

[lilei644]

Hello! Thank you for providing the animation library, which I recently used in my project, but I found a bug. Animation usually works normally. When I jump from the current App to the second App, and then jump back to the current App, any animation will be repeated.

[jhurray]

I believe if you call stop when the app enters the background this should clear the animations. Then you can set the view to the state you want