void |
setOutsideTouchable(boolean touchable) Controls whether the pop-up will be informed of touch events outside of its window. |
void |
setFocusable(boolean focusable) Changes the focusability of the popup window. |
void |
update() Updates the state of the popup window, if it is currently being displayed, from the currently set state. |
原文：http://www.cnblogs.com/liguangsunls/p/7106616.html