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

You can do it using interface callback:

1. Create interface

public interface OnAdapterCountListener {
    void onAdapterCountListener(int count);
}

2. Add below variables and methods in adapter

private OnAdapterCountListener onAdapterCountListener; 
    public void setOnAdapterCountListener(OnAdapterCountListener l) { 
        onAdapterCountListener = l; 
    }

3. Add this line in onCreateViewHolder of your adapter

onAdapterCountListener.onAdapterCountListener(getItemCount());

4. Finally, call interface in your activity

listAdapter.setOnAdapterCountListener(new OnAdapterCountListener() {
    @Override 
    public void onAdapterCountListener(int count) { 
        if (count > 0) 
            adapterEmptyText.setVisibility(View.GONE); 
    }
});