Correct the way of avoiding crash

                getAdapter().toggleSelectionOfContactId(Long.valueOf(contactId));

                // Manually send clicked event if there is a checkbox.

                // See b/24098561.  TalkBack will not read it otherwise.

                final int adjPosition = position + getListView().getHeaderViewsCount();

                if (getListView() != null && adjPosition < getListView().getChildCount()) {

                    getListView().getChildAt(adjPosition).sendAccessibilityEvent(AccessibilityEvent

                final int index = position + getListView().getHeaderViewsCount() - getListView()

                        .getFirstVisiblePosition();

                if (index >= 0 && index < getListView().getChildCount()) {

                    getListView().getChildAt(index).sendAccessibilityEvent(AccessibilityEvent

                            .TYPE_VIEW_CLICKED);

                }

            }