React Native animations are going under a big overhaul, and big news (and official cross platform JavaScript libraries!) are coming soon.

They will bring life to your apps, Joel Arvidsson is making his point about them with his Animated collapsible Component.

react-native-collapsible on GitHub

Animated collapsible component for React Native, good for accordions, toggles etc

Pure JavaScript, supports dynamic content heights and components that is aware of its collapsed state (good for toggling arrows etc).