addChangeListener
Add a change listener to listen to change events occurring to any documents in the collection. To remove the listener, call remove() function on the returned listener token.
Return
token used to cancel the listener
Parameters
the observer
See also
Add a change listener to listen to change events occurring to any documents in the collection. To remove the listener, call remove() function on the returned listener token.
The CoroutineContext will be used to launch coroutines the listener will be called on. Coroutines will be launched in a CoroutineScope that is canceled when the listener is removed.
Return
token used to cancel the listener
Parameters
coroutine context in which the listener will run
the observer
See also
Add a change listener to listen to change events occurring to any documents in the collection.
The CoroutineScope will be used to launch coroutines the listener will be called on. The listener is removed when the scope is canceled.
Parameters
coroutine scope in which the listener will run
the observer