import 'package:route_transitions/route_transitions.dart';

ElevatedButton(
  onPressed: () => pushWidget(
    newPage: Dashboard(),
    context: context,
  ),
  child: Text("Push page"),
),

customAnimationWidget(
  newPage: YourPage(),
  context: context,
  transitionBuilder:
      (context, animation, secondaryAnimation, child) {
    var begin = 0.0;
    var end = 1.0;
    var curve = Curves.easeIn;

    var tween = Tween(begin: begin, end: end)
        .chain(CurveTween(curve: curve));

    return ScaleTransition(
      scale: animation.drive(tween),
      child: child,
    );
  },
)