removeFrom method
Removes the behavior from a chart.
Implementation
@override
void removeFrom(BaseChart<D> chart) {
if (chart is! CartesianChart) {
throw ArgumentError(
'InitialHintBehavior can only be removed from a CartesianChart<D>');
}
stopHintAnimation();
_chart = chart as CartesianChart<D>;
chart.removeGestureListener(_listener);
chart.removeLifecycleListener(_lifecycleListener);
_chart = null;
}