Swipe to Refresh:How do you turn it off? Code Challenge 4/4

import android.os.Bundle;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;

public class MainActivity extends ListActivity {

    public SwipeRefreshLayout mRefreshLayout;
    /*
     * Some code has been omitted for brevity
     */

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

      mRefreshLayout = (SwipeRefreshLayout)findViewById(R.id.refreshLayout);
      mRefreshLayout.setOnRefreshListener(mOnRefreshListener);
    }

    public OnRefreshListener mOnRefreshListener = new OnRefreshListener() {
        @Override
        public void onRefresh() {

        }
    }; 
}