TickerFuture return for AnimationController.toggle

[saepire]

This breaks while building with latest flutter. Likely due to the toggle addition in flutter/flutter#147801

trying to fix.

[nikodembernat]

Thanks for noticing it!
I see that you are missing @override and don't return TickerFuture when calling forward - it would be better to return it because it accurately shows the current state of the animation. Do you want to fix it or should I do it?

Also, it would be a good idea to simplify this method while we are editing it.

Basically, we need something like:

@override
TickerFuture toggle({double? from}) {
  if (isCompleted) {
    reset();
  } else if (_isPlaying) {
    stop();
    return TickerFuture.complete();
  }

  return forward(from: from);
}

I can make a new release today if we merge it

[nikodembernat]

Ok, I've fixed it, I won't waste your time.
Thanks a lot nonetheless!

There should be a new release later today