public class A {
                private OnItemClickListener mListener;

                public interface OnItemClickListener {
                    void onDeleteClick(int position);
                }

                ...
                @Override
            public void onDeleteClick(int position) {
                errase(position);
            }
}

public interface OnItemClickListener {
        void onItemClick (int position);
        void onDeleteClick (int position);
        void onButtonClick (int position);
    }

public class A {
     private OnItemClickListener mListener;

     ...
     @Override
            public void onItemClick(int position) {
                 //empty because I dont need it here
            }

            @Override
            public void onButtonClick(int position) {
                 //empty because I dont need it here
            }

            @Override
            public void onDeleteClick(int position) {
                errase(position);
            }
}