How to detect if RecyclerView is empty?

Question

I have a RecyclerView getting external JSON data parsed from a server. It works fine however the Volley async task on JSON sometimes takes a while and when it does the fragm

Answer 1

How is described in https://developer.android.com/training/material/lists-cards.html

The overriden method getItemCount() is invoked by the layout manager. This is the snippet:

// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
    return mDataset.length;
}

So to detect if the recyclerView is empty you must request it to your LayoutManager. Example:

if( mLayoutManager.getItemCount() == 0 ){
    //Do something
}

I try to getItemCount() of my Adapter but this returns 0, I don't know why it is...