Android, on finish loading data from firebase

Question

How to show the Progressbar on start of the activity that contains recycler view which should be hidden once the recycler view loads the data from firebase database?

Answer 1

Assuming you are using a FirestoreRecyclerAdapter, to solve this, create a new object of ProgressBar and start showing it in the onCreate() method, or if you want add it directly in your .XML file and finally in your adapter class, override the following method:

@Override
public void onDataChanged() {
    if (progressBar != null) {
        progressBar.setVisibility(View.GONE);
    }
}