Maxime Mezrahi is rebooting a kind of Component that we already covered before. His own implementation, though, takes advantage of the newly released Animated library. It also provides the handful "swipe down to close" gesture and a full set of properties and events.

react-native-modalbox on GitHub

A react native component, easy, fully customizable, implementing the 'swipe down to close' feature. Using the new react native Animated library.