Firebase for Android, How can I loop through a child (for each child = x do y)

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This is what my test looks like:

enter image description here

I won’t use the fields above, it’s just a dummy. But I would like to go through all the children on “users” and for each email return a:


The only way I found of listing an object is using firebaseAdapter, is there another way of doing it?


The easiest way is with a ValueEventListener.

            .addListenerForSingleValueEvent(new ValueEventListener() {
                public void onDataChange(DataSnapshot dataSnapshot) {
                    for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
                        User user = snapshot.getValue(User.class);
                public void onCancelled(DatabaseError databaseError) {

The User class can be defined like this:

class User {
  private String email;
  private String userId;
  private String username;
  // getters and setters...

Source: stackoverflow