React Native Animated, Complete Event

Half an hour of googling later and i found this, can't believe they didn't document this better.

https://github.com/facebook/react-native/issues/3212

.start(callback)

This will get fired at the start of the animation

.start(console.log("Start Animation")

Using an arrow function or function, done will get called at the END of the animation

.start(() => {console.log("Animation DONE")})

And finaly this is what it looks like in the context to of a function.

_play(){
  Animated.timing(this.state.progress, {
     toValue: 1,
     duration: 5000,
     easing: Easing.linear,
   }).start(() => {console.log("Animation DONE")});
}

Hope that helps!