Safari iPad：防止双击缩放 [英] Safari iPad : prevent zoom on double-tap

问题描述

我正在Safari for iPad上创建一个网站。我需要阻止双击事件的缩放，但我有两个问题：

I'm creating a site on Safari for iPad. I need to prevent the zoom on double-tapping event but I have two problems:

• 双击不会产生任何事件，所以我不能使用event.preventDefault（）;


• 我只有在满足某些条件时才需要这样做，所以我不能使用标签< meta name =viewportcontent =user-scalable = no> ......如果我这样做，用户就永远无法放大我的页面。

• a double tap doesn’t generate any events, so I can't use "event.preventDefault();"
• I need to do this only when some conditions are fulfilled, so I can't use the tag "<meta name = "viewport" content = "user-scalable = no">"... If I did that, users could never zoom on my page.

如何解决这些问题？

推荐答案

手机Safari不支持javascript ondblclick事件。它被Safari解释为缩放。

Mobile Safari does not support the javascript ondblclick event. It's interpreted by Safari as a "zoom".

Raul Sanchez发布了一个潜在的解决方案：
http://appcropolis.com/implementing-doubletap-on-iphones-and-ipads/

Raul Sanchez has posted a potential solution: http://appcropolis.com/implementing-doubletap-on-iphones-and-ipads/

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