_NumberAnimationState#3d2e7(ticker active) was disposed with an active Ticker.

[phillausofia]

I have a TabBar in which some tabs contain NumberAnimation. When switching quickly between them, I received this error:

_NumberAnimationState#3d2e7(ticker active) was disposed with an active Ticker.

The error is fixed by disposing the animation controller first in the NumberAnimation.dispose() method. Currently super.dispose() is called first.

[chvin]

Can you provide an error demo？

[nandosilvajr]

Its happen because in number_animation.dart, on dispose, controller.dispose() is after super.dispose().