How To Force To Get Cached Documents In Firestore ? I Want To Get Cached Documents When Online

so I have this method to query documents from Firestore: FirestoreCollectionReference.event.getReference() .whereEqualTo(FIRESTORE_EVENT_FIELD_CITY,selectedCity)

Solution 1:

If you want to explicitly control where get() gets its data from, you can pass in a Source parameter that tells it what to do:

.get(Source.CACHE)

or

.get(Source.SERVER)

Also see the guide and reference documentation for get(Source).

Solution 2:

Use this for Firestore Settings (this is in Kotlin)

val firestoreSettings: FirebaseFirestoreSettings = FirebaseFirestoreSettings.Builder()
                        .setPersistenceEnabled(false/*OR True | Control it whenever you need*/)
                        .setSslEnabled(true)
                        .build()
firebaseFirestore.firestoreSettings = firestoreSettings