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firebase realtime database update child

Ranger answered on December 15, 2022 Popularity 4/10 Helpfulness 1/10

answer firebase realtime database update child

firebase realtime database update child

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private void updateUser() { 
   mDatabase.child("users").child(userId)
     .addListenerForSingleValueEvent(new ValueEventListener() {
       @Override
       public void onDataChange(DataSnapshot dataSnapshot) {
          Map<String, Object> postValues = new HashMap<String,Object>();
          for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
             postValues.put(snapshot.getKey(),snapshot.getValue());
          }
          postValues.put("email", email);
          postValues.put("firstName", firstName);
          postValues.put("lastName", lastName);
          mDatabase.child("users").child(userId).updateChildren(postValues);
       }

       @Override
       public void onCancelled(DatabaseError databaseError) {}
       }
    );
}

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Contributed on Dec 15 2022

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firebase realtime database update child

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