Firestore getting every field random named in document

Question

I'm trying to get every field in one document in firestore. Field's key are random numbers and values are same with keys.How can i do that with document?

DocumentReference docRef = db.collection("cities").document("SF");
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
    if (task.isSuccessful()) {
        DocumentSnapshot document = task.getResult();
        if (document.exists()) {
            Log.d(TAG, "DocumentSnapshot data: " + document.getData());
            // get every field in document.getData();
        }
    } 
}
});

score 2 · Accepted Answer · edited Dec 25 '18 at 15:16

2

document.getData() returns a Map<String, Object> with all the fields from the document, as you can see from the API documentation. You iterate all the fields in the same way that you iterate all the entries in a Map.

for (Map.Entry<String, Object> entry : map.entrySet()) {
    // entry.getKey() will contain the name of the field with each iteration.
}

edited Dec 25 '18 at 15:16

Alex Mamo

130,605
17
163
193

answered Dec 24 '18 at 18:14

Doug Stevenson

297,357
32
422
441

Firestore getting every field random named in document

1 Answers1