Disable a whole activity from user action

Question

Is there a simple way to disable a user interacting with an activity. To be done when there is an action running (and a spinning progress bar in the title bar)

EDIT:

Answer 1

I have solved this using a custom method - which I did not want to do:

public static void setViewGroupEnabled(ViewGroup view, boolean enabled)
    {
        int childern = view.getChildCount();

        for (int i = 0; i< childern ; i++)
        {
            View child = view.getChildAt(i);
            if (child instanceof ViewGroup)
            {
                setViewGroupEnabled((ViewGroup) child, enabled);
            }
            child.setEnabled(enabled);
        }
        view.setEnabled(enabled);
    }

If anyone finds a better way I'd like to hear about it! Thanks.