Can't Disable Offline Data In Firestore

Question

After deleting data from my Firestore Database, it takes my Android app some time to realize that the data was deleted, and I assume that it's happening due the auto data cache. My app has nothing to do with offline usage and I'd like to disable this feature...

I have added this in my custom Application Class:

import android.app.Application; import com.google.firebase.firestore.FirebaseFirestore; import com.google.firebase.firestore.FirebaseFirestoreSettings;  public class ApplicationClass extends Application {      @Override     public void onCreate() {         super.onCreate();          FirebaseFirestore db=FirebaseFirestore.getInstance();         FirebaseFirestoreSettings settings = new FirebaseFirestoreSettings.Builder()                 .setPersistenceEnabled(false)                 .build();         db.setFirestoreSettings(settings);     } } 

The problem occurs after turning off the internet connection and than turning it back on (while the app is still running, in the background or not)- the Firestore module seems to lose connection to the server, and it makes the opposite operation than the intended one - instead of stop taking data from the cache, it takes data from the cache only.

For example, debugging this code will always show that isFromCache is true and documentSnapshot is empty (even though that on the server side - it's not empty):

usersRef.document(loggedEmail).collection("challenges_received").get().addOnSuccessListener(new OnSuccessListener<QuerySnapshot>() {     @Override     public void onSuccess(QuerySnapshot documentSnapshots) {         boolean isFromCache=documentSnapshots.getMetadata().isFromCache();         if (!documentSnapshots.isEmpty()) {         }     } }); 

Is this normal behavior?

Is there another way to disable the data cache in Cloud Firestore?

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EDIT:

Adding: FirebaseFirestore.setLoggingEnabled(flase); (instead of the code above) in the custom Application Class gives the same result.

Answer 1

According to Cloud Firestore 16.0.0 SDK update, there is now a solution to this problem:

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You are now able to choose if you would like to fetch your data from the server only, or from the cache only, like this (an example for server only):

DocumentReference documentReference= FirebaseFirestore.getInstance().document("example"); documentReference.get(Source.SERVER).addOnSuccessListener(new OnSuccessListener<DocumentSnapshot>() {     @Override     public void onSuccess(DocumentSnapshot documentSnapshot) {             //...     } }); 

For cache only, just change the code above to Source.CACHE.

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By default, both methods still attempt server and fall back to the cache.