onCancel property

@override (FutureOr<void> Function()?) 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
FutureOr<void> Function()? get onCancel => _streamController.onCancel;

@override void onCancel=(FutureOr<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(FutureOr<void> Function()? onCancelHandler) {
  _streamController.onCancel = onCancelHandler;
}