listen static method

StreamSubscription listen(
  1. void onData(
    1. dynamic event
    )?, {
  2. String? key,
  3. Function? onError,
  4. void onDone()?,
  5. bool? cancelOnError,
})

Listen value change If provide key, only receive notify when value of key change If key is null, all value change will notify

Implementation

static StreamSubscription<dynamic> listen(
    void Function(dynamic event)? onData,
    {String? key,
    Function? onError,
    void Function()? onDone,
    bool? cancelOnError}) {
  return _eventChannel
      .receiveBroadcastStream(key)
      .map((event) => event)
      .listen(onData,
          onError: onError, cancelOnError: cancelOnError, onDone: onDone);
}