The AnimationController animateWith must allow to change the direction #60419
Description
Use case
I want to use my own spring simulation for fling animation of a widget
Proposal
Allow us to have some control over the direction of the animation.
/// From animation\animation_controller.dart
///
/// The [status] is always [AnimationStatus.forward] for the entire duration
/// of the simulation. --------- I mean - WHY is that?
TickerFuture animateWith(Simulation simulation) {
assert(
_ticker != null,
'AnimationController.animateWith() called after AnimationController.dispose()\n'
'AnimationController methods should not be used after calling dispose.'
);
stop();
_direction = _AnimationDirection.forward;
return _startSimulation(simulation);
}