adding new value to stream

Question

I have a stream of data and I want to add new value to an existing stream. Code looks like this

Stream<List<Points>> _points;
_points.sink.add(values);

is this possible, or do I have to find a different way?

You may be looking for a StreamController -api.dart.dev/stable/2.14.3/dart-async/… — Your Friend Ken
– Your Friend Ken, Commented Sep 29, 2021 at 17:25

Your Friend Ken · Accepted Answer · 2021-09-29 17:39:18Z

3

You can send data to a stream using the sink in a StreamController as well as add existing streams to the controller

// Create controller
final streamController = StreamController<List<Point>>();

// Listen to stream
streamController.stream.listen((points) { doStuff(points); });

// Send data to stream
streamController.sink.add([const Point(0.0, 0.0), const Point(1.0, 1.0)]);

// You can also add other streams to the controller
streamController.addStream(otherStream);

edited Sep 29, 2021 at 17:39

answered Sep 29, 2021 at 17:31

Your Friend Ken

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