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/Dart 2

onCancel property

ControllerCancelCallback onCancel

The callback which is called when the stream is canceled.

May be set to null, in which case no callback will happen.

Implementation

ControllerCancelCallback get onCancel;
void onCancel= (dynamic onCancelHandler())

Implementation

void set onCancel(onCancelHandler());

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-async/StreamController/onCancel.html