Minor twaek to the focus behavior.

    void ensureInputFocusOnFirstFocusable() {

        View root = getRootView();

        if (root != null) {

            // Find the first focusble from the top.

            View next = root.focusSearch(FOCUS_FORWARD);

            if (next != null) {

                // Giving focus to the found focusable will not

                // perform a search since we found a view that is

                // guaranteed to be able to take focus.

                next.requestFocus(FOCUS_FORWARD);

            }

            root.requestFocus(FOCUS_FORWARD);

        }

    }