removeChangeListener abstract method

FutureOr<void> removeChangeListener(ListenerToken token)

Removes a previously added change listener.

Pass in the token that was handed out when adding the listener.

Regardless of whether a Future is returned or not, the listener immediately stops being called.

See also:

• addChangeListener for listening for changes to this database.
• addDocumentChangeListener for listening for changes to a single Document.

Implementation

FutureOr<void> removeChangeListener(ListenerToken token);