home_screen.dart

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
  
Animation _arrowAnimation, _heartAnimation;
AnimationController _arrowAnimationController, _heartAnimationController;  
  

  @override
  void initState() {
    super.initState();
    _arrowAnimationController =
        AnimationController(vsync: this, duration: Duration(milliseconds: 300));
    _arrowAnimation =
        Tween(begin: 0.0, end: pi).animate(_arrowAnimationController);
    
    
        _heartAnimationController = AnimationController(
        vsync: this, duration: Duration(milliseconds: 1200));
    _heartAnimation = Tween(begin: 150.0, end: 170.0).animate(CurvedAnimation(
        curve: Curves.bounceOut, parent: _heartAnimationController));

    _heartAnimationController.addStatusListener((AnimationStatus status) {
      if (status == AnimationStatus.completed) {
        _heartAnimationController.repeat();
      }
    });
    
  }  
  
@override
Widget build(BuildContext context) {
  
}
}