import 'package:flip_card/flip_card.dart';

FlipCard(
  direction: FlipDirection.HORIZONTAL, // default
  front: Container(
        child: Text('Front'),
    ),
    back: Container(
        child: Text('Back'),
    ),
);

GlobalKey<FlipCardState> cardKey = GlobalKey<FlipCardState>();

@override
Widget build(BuildContext context) {
  return FlipCard(
    key: cardKey,
    flipOnTouch: false,
    front: Container(
      child: RaisedButton(
        onPressed: () => cardKey.currentState.toggleCard(),
        child: Text('Toggle'),
      ),
    ),
    back: Container(
      child: Text('Back'),
    ),
  );
}