Firebase Android - how to tell if node has been synced

Question

I\'m using Firebase for Android for the chat component of our app. I\'m having trouble figuring out how to reliably implement status updates on each chat message. For exampl

Answer 1

From the Firebase documentation on writing data:

If you'd like to know when your data has been committed, you can add a completion listener. Both setValue() and updateChildren() take an optional completion listener that is called when the write has been committed to the database.

With this handy code sample:

ref.setValue("I'm writing data", new Firebase.CompletionListener() {
    @Override
    public void onComplete(FirebaseError firebaseError, Firebase firebase) {
        if (firebaseError != null) {
            System.out.println("Data could not be saved. " + firebaseError.getMessage());
        } else {
            System.out.println("Data saved successfully.");
        }
    }
});