关闭移动浏览器窗口时如何显示警报消息? [英] How do show alert message when closing a Mobile Browser window?
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问题描述
关闭移动浏览器窗口时如何显示警告消息?
How to show alert message when closing a Mobile Browser window?
推荐答案
您好,
JQuery: http://jquery.com/ [ ^ ]
Jquery检测卸载或关闭:http://api.jquery.com/unload/ [ ^ ]
Hi,
JQuery :http://jquery.com/[^]
Jquery Detect unload or close : http://api.jquery.com/unload/[^]
Quote:
unload事件的确切处理因浏览器的版本而异。例如,某些版本的Firefox会在跟踪链接时触发事件,但不会在窗口关闭时触发。在实际使用中,应该在所有支持的浏览器上测试行为,并与专有的beforeunload事件进行对比。
The exact handling of the unload event has varied from version to version of browsers. For example, some versions of Firefox trigger the event when a link is followed, but not when the window is closed. In practical usage, behavior should be tested on all supported browsers, and contrasted with the proprietary beforeunload event.
<script>
window.onbeforeunload = function (e) {
e = e || window.event;
// For IE and Firefox prior to version 4
if (e) {
e.returnValue = 'Sure?';
}
// For Safari
return 'Sure?';
};
</script>
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