registerOnChange method

  1. @override
void registerOnChange(
  1. ChangeFunction<bool> callback
)

Set the function to be called when the control receives a change event.

NOTE: This function should only be called by view (i.e. user-initiated) changes. Incorrect implementation of registerOnChange will cause issues such as the control incorrectly being marked as dirty from a model update.

Implementation

@override
void registerOnChange(callback) {
  onChecked.listen((checked) => callback(checked));
}