addEventOnChange method

String addEventOnChange(
  1. dynamic event(
    1. T
    )
)

to add an event for On Change the current value. returns the event id.

Implementation

String addEventOnChange(Function(T) event) {
  final id = DateTime.now().microsecondsSinceEpoch.toString();
  _changeEvents[id] = event;
  return id;
}