onCancel property

@override ControllerCancelCallback? get onCancel

The callback which is called when the stream is canceled.

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

Implementation

@override
ControllerCancelCallback? get onCancel => _controller.onCancel;

@override set onCancel (void onCancelHandler()?)

The callback which is called when the stream is canceled.

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

Implementation

@override
set onCancel(void Function()? onCancelHandler) {
  _controller.onCancel = onCancelHandler;
}