Improve useAnimationController hook

[esDotDev]

trafficstars

useAnimationController would be more useful if it included:

• Ability to auto-play forward or back, or a callback that lets us kick off the animation
• Ability to delay the autoplay
• Ability to automatically rebuild on tick

Currently because AnimController does not have this we have to often use an "imperitive escape-hatch" of useEffect to start our animations, and add extra lines of boilerplate to tick our widgets:

final anim1 = useAnimationController(duration: 1.seconds);
useListenable(anim1);
final anim2 = useAnimationController(duration: 2.seconds);
useListenable(anim2);
useEffect(() {
  anim1.forward();
  Future.delayed(1.seconds, () => anim2.forward());
  return null;
}, []);

This could better be represented declaritively as:

final anim1 = useAnimationController(
  onStart: (c) => c.forward(), 
  useListener: true, 
  duration: 1.seconds);

final anim2 = useAnimationController(
  onStart: (c) => c.forward(), 
  startDelay: 1.seconds, 
  useListener: true, 
  duration: 2.seconds);

[rrousselGit]

I don't think that's the role of useAnimationController.

Instead we probably want a useTweenAnimation that behaves like TweenAnimationBuilder but as a hook

[esDotDev]

I worry that TAB is not imperative enough. This is a use case situation where we want to use AC for its flexibility, but also kick it off when we first load.

In other word TAB works great when you want to initially play something, but you are then forced into continuous animation, no ability to do from: 0 or whatever you need, so it's very limited in the roles it can play for dynamic animation.

The main goal to this proposal is to just more fully flesh out the declarative syntax for AC, so we're not forced into imperative and less readable useEffect hooks anytime we want to delay the start, or auto-play. It's not changing the role, it's just cleaning up syntax and making the use of imperative calls less common.

Unless you're thinking a TAB style hook, that still has forward() calls etc? That would definitely work fine.