stop method
Stops the current listen for speech if active, does nothing if not.
Stopping a listen session will cause a final result to be sent. Each
listen session should be ended with either stop or cancel, for
example in the dispose method of a Widget. cancel is automatically
invoked by a permanent error if cancelOnError
is set to true in the
listen call.
Note: Cannot be used until a successful initialize call. Should only be used after a successful listen call.
Implementation
@override
Future<void> stop() async {
if (null == _webSpeech) return;
_webSpeech!.stop();
}