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position 上的触摸事件:已修复; 元素在 iOS 上无法正常工作

[英]Touch event on position: fixed; element doesn't work correctly on iOS

This is a similar problem with IOS 5 (safari) bug with HTML touch events on "position:fixed" div这是一个与IOS 5 (safari) bug 类似的问题,在“position:fixed”div 上有 HTML 触摸事件

Somebody said that this bug has been fixed.有人说这个bug已经修复了。 But, on iOS 8, I find it is only fixed when you tap and scroll the page SLOWLY.但是,在 iOS 8 上,我发现它只有在您点击并缓慢滚动页面时才会修复。

Here is my codes:这是我的代码:

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <title>Document</title>
    <style>
    header {
        position: fixed;
        width: 100%;
        height: 600px;
        top: 0;
        color: #fff;
        background: rgba(0, 0, 0, 0.9);
        z-index:100;
    }
    .content {
        height: 10000px;
        background: url(http://placehold.it/350x150&text=Background);
    }
    </style>
</head>

<body>
    <header></header>
    <section class="content"></section>

    <script type="text/javascript" src="jquery.js"></script>
    <script>
        (function($) {
            'use strict';

            $('header').on('touchend', function(event) {
                event.stopPropagation();
                $('<p>Tap on float content.</p>').appendTo('header');

                // hack 1
                var $temp = $('<div style="height: 20000px"></div>');
                $temp.appendTo('body');
                setTimeout(function(){
                    $temp.remove();
                }, 1);
            });

            $(document).on('touchend', function() {
                $('<p>Tap on UNDER content.</p>').appendTo('header');
            });

            // hack 2
            $('body').bind('touchstart', function(e) {});

        }(jQuery));
    </script>
</body>

</html>

You can find the bug in these two different ways:您可以通过以下两种不同的方式找到错误:

  • fast swipe and scroll the page on the <head> area for several times.<head>区域快速滑动并滚动页面数次。
  • swipe on the.content area, then quickly tap on the <header> area before the page stop scrolling.在内容区域滑动,然后在页面停止滚动之前快速点击<header>区域。

In both cases, sometimes you can find that "Tap on UNDER content."在这两种情况下,有时您会发现“点击内容下方”。 is output when you tap on the <header> area.点击<header>区域时为 output。

Update:更新:

There is 3rd case:还有第三种情况:

  • swipe on the.content area, then quickly tap on the.content area again before the page stop scrolling, then tap on the <header> area.在内容区域滑动,然后在页面停止滚动之前再次快速点击内容区域,然后点击<header>区域。 In this case, the tap on the <header> area doesn't output anything.在这种情况下,点击<header>区域不会 output 任何东西。

I've tried the hacks, like "add touchstart event for <body> ", "add temporary <div> ".我试过一些技巧,比如“为<body>添加 touchstart 事件”、“添加临时<div> ”。 None of them works.它们都不起作用。

Any idea on how to fix this?关于如何解决这个问题的任何想法? Thanks.谢谢。

if you have an element with position:fixed and touch event doesn't work over it, try adding:如果你有一个带有 position:fixed 的元素并且触摸事件在它上面不起作用,请尝试添加:

pointer-events: none;

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