onActiveChanged method
void
onActiveChanged()
Perform tasks when the animation's active state changes
Implementation
void onActiveChanged() {
// // If the animation stops and it is at the end of the one-shot, reset the
// // animation back to the starting time
// if (!isActive) {
// reset();
// }
// // Fire any callbacks
// isActive
// ? onStart?.call()
// // onStop can fire while widgets are still drawing
// : _ambiguate(WidgetsBinding.instance)
// ?.addPostFrameCallback((_) => onStop?.call());
}