PopAndScaleTransition<T> constructor

PopAndScaleTransition<T>({ required Widget page, })

Implementation

PopAndScaleTransition({required this.page})
    : super(
        pageBuilder: (context, animation, secondaryAnimation) => page,
        transitionsBuilder: (context, animation, secondaryAnimation, child) {
          const begin = Offset(0.0, 1.0);
          const end = Offset.zero;
          const curve = Curves.easeInOut;
          final tween =
              Tween(begin: begin, end: end).chain(CurveTween(curve: curve));
          final offsetAnimation = animation.drive(tween);

          const staggerDelay = 0.1;
          final scaleValue = Tween<double>(
            begin: 0.0,
            end: 1.0,
          ).animate(CurvedAnimation(
            parent: animation,
            curve: const Interval(0.0, 1.0, curve: curve),
          ));

          final staggerScaleValue = Tween<double>(
            begin: 0.8,
            end: 1.0,
          ).animate(CurvedAnimation(
            parent: animation,
            curve: const Interval(staggerDelay, 1.0, curve: curve),
          ));

          return AnimatedBuilder(
            animation: animation,
            builder: (context, child) {
              return Transform.scale(
                scale: scaleValue.value * staggerScaleValue.value,
                child: SlideTransition(
                  position: offsetAnimation,
                  child: child,
                ),
              );
            },
            child: child,
          );
        },
      );