android - Cloud Firestore: retrieving cached data via direct get?

Question

Retrieving data from the server may take some seconds. Is there any way to retrieve cached data in the meantime, using a direct get?

The onComplete seems to be called only when the data is retrieved from the server:

db.collection("cities").whereEqualTo("state", "CA").get()
        .addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
            @Override
            public void onComplete(@NonNull Task<DocumentSnapshot> task) {
                if (task.isSuccessful()) {
                ...
                }
            }
        });

Is there any callback for the cached data?

Answer 1

Waitting for answers