This is a list of qna in the firebase. I want to print this out. But my output list doesn't show anything. https://i.stack.imgur.com/6ctRB.png QNA Activity public class QnaActivity extends AppCompatActivity { private RecyclerView qnaRv; private ArrayList<ModelQna> qnaList; private AdapterQna adapterQna;…
I have posts for a group chat stored in an array. I'm trying to get the newest posts to be shown at the top and the oldest at the bottom. I'm not sure what to do or how I could…
I'm developping my first app with Flutter and Firebase. I built it one time, far before connecting it to Firebase. Now I have done it at 90% but I can't build the apk and not able to correct to error…
I have the following error while I try to query the members of my database: FirebaseException ([firebase_database/index-not-defined] Index not defined, add ".indexOn": "36a72WVw4weQEoXfk3T9gCtOL9n2", for path "/members", to the rules I am trying to check if there is already a chat…
func checkUsername(username: String) -> Bool { var avalible = true Database.database().reference().child("usernames").child(username).observeSingleEvent(of: .value, with: { snapshot in if snapshot.exists() { print("exists") avalible = false } }) return available } I'm trying to check if a username exists. I've already tried multiple…
I am currently trying to make a workable app using expo react native and I encounter some issues while doing it. My issue is before, I followed a youtube guide to code my login and register on the same page…
I read many posts about this but didn't find a proper suggested, official way to secure the votes count. How do we secure; FieldValue.increment(1) so that malicious users cannot increment by 5,6 etc? If we check for userID's (for ex;…
I have a problem with my app connecting to my Firestore database when trying to use setDoc. I have the database up and running for next-auth which is functioning as intended and creating records in the database. However, when I…
Not sure why I am not able to sign out. When I click a button on the app bar, see 'sign out', I click it, system then asks me to confirm to sign out, I click it. then I get…
I'm getting this error when I call verifyPhoneNumber() method..there is nothing wrong with my phone auth codes since it's working perfectly fine before I changed my bundleId and redownloaded the google-service.json file. my project got messed up since I changed…