RecyclerView NullPointerException Issue in getItemCount

Question

Please look into this and let me know what went wrong.

public class MyAdapter extends RecyclerView.Adapter {
    private ItemData[]         


        

Answer 1

Your itemsData parameter passed to the MyAdapter's constructor is null or you are using the second constructor which is not initializes the itemsData class member. You can check it for null and return 0 from the getItemCount method:

@Override
public int getItemCount() {
    return itemsData == null ? 0 : itemsData.length;
}