addController method
Add an animation controller to this artboard. Playing will be scheduled if it's already playing.
Implementation
bool addController(RiveAnimationController controller) {
if (_animationControllers.contains(controller) ||
!controller.init(context)) {
return false;
}
controller.isActiveChanged.addListener(_onControllerPlayingChanged);
_animationControllers.add(controller);
if (controller.isActive) {
context.markNeedsAdvance();
}
return true;
}