on method

void on(
  1. String event,
  2. Function callback
)

Add an event listener

Implementation

void on(String event, Function callback) {
  print('Adding event listener for: $event');
  _eventHandlers.putIfAbsent(event, () => {});
  _eventHandlers[event]!.add(callback);
  print('Event handlers for $event: ${_eventHandlers[event]!.length}');
}