isFromCache property
Whether the snapshot was created from cached data rather than guaranteed up-to-date server data.
If you called DocumentReference.snapshots
or Query.snapshots
with
includeMetadataChanges
parameter set to true
you will receive another
snapshot with isFromCache
equal to false
once the client has received
up-to-date data from the backend.
Implementation
@override
bool get isFromCache => true;