listen abstract method Null safety
override
Listen for events from Stream.
See Stream.listen.
Note that onError
and cancelOnError
are ignored since a ReceivePort
will never receive an error.
The onDone
handler will be called when the stream closes.
The stream closes when close is called.
Implementation
StreamSubscription<dynamic> listen(void onData(var message)?,
{Function? onError, void onDone()?, bool? cancelOnError});