在不适合移动设备的页面上创建适合移动设备的小部件
[英]Creating a mobile-friendly widget on a non-mobile-friendly page
问题描述
Quick background: 
快速背景：
I'm trying to make a mobile-friendly widget. 我正在尝试制作适合移动设备的小部件。 My customers have non-mobile friendly pages, and this isn't likely to change anytime soon. 我的客户有不适合移动设备浏览的页面，而且这种情况不太可能很快改变。
Attempted solution: 尝试的解决方案：
I figured this wouldn't be so bad. 我认为这不会太糟。 Just remove the widget from the page flow by using position:fixed , insert a viewport meta tag, and presto! 只需使用position:fixed从页面流中删除小部件，插入一个视口元标记，然后保存！ ...right? ...对？ See this here fiddle. 看到这里摆弄。
The Problem: 问题：
The attempted a solution breaks on some mobile devices. 尝试解决的方法在某些移动设备上中断。 When using a co-worker's phone, they were able to scroll away from the supposedly position:fixed element! 当使用同事的电话，他们能够从所谓滚动远 position:fixed元素！ (Phone in question is Android 4 or 5, so it's not the 2.1-2.3 bug.) I'm pretty sure this same behavior occurs on iPhones. （有问题的手机是Android 4或5，所以它不是2.1-2.3的错误。）我很确定在iPhone上也会发生这种现象。
Essentially, it seems to be behaving as though it were position:absolute on the top-left corner of the page. 本质上，它似乎表现得好像是position:absolute在页面的左上角。
Attempted Solution Details: 尝试的解决方案详细信息：
I start by appending the viewport meta tag with javascript: 我首先用javascript附加视口元标记：
$('head').append('<meta name="viewport" content="width=device-width,initial-scale=1"/>');
Let's just assume a very basic HTML template: 让我们假设一个非常基本的HTML模板：
<html>
...
<div class="overlay">
<div class="modal">
<div class="content">...</div>
</div>
</div>
...
</html>
and following CSS: 和以下CSS：
.hide-overflow {
overflow: hidden;
}
.overlay {
position: fixed;
-webkit-backface-visibility:hidden; /* Not that this does anything */
top: 0;
right: 0;
bottom: 0;
left: 0;
display: table;
overflow: hidden;
z-index: 1000;
}
.modal {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
display: table-cell;
text-align: center;
vertical-align: middle;
}
.content {
display: inline-block;
width: 800px;
height: 500px;
}
@media (max-width: 800px) {
.overlay * {
max-width: 100%;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.content {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
}
}
Of course, I didn't think this would be enough. 当然，我认为这还不够。 I also added the following javascript to prevent scrolling on the <body> and outer-most <div> element: 我还添加了以下javascript以防止在<body>和最外面的<div>元素上滚动：
// This only shows up when the widget is activated--it's removed on deactivation.
$('body').addClass('hide-overflow');// Just adds overflow:hidden, in case you forgot ;)
$('body > div').addClass('hide-overflow');
On my phone's (Galaxy
Tablet
Note) default browser, this works great! 在我的手机（Galaxy
Tablet
Note）的默认浏览器上，这个效果很好！ No problems! 没问题！ As mentioned before, on iPhones, questionable Android devices, etc., you can scroll away from the position:fixed element as though it were actually position: absolute . 如前所述，在iPhone，可疑的Android设备等上，您可以滚动到position:fixed元素，就好像它实际上是position: absolute 。 How do I get position:fixed to work? 我如何获得position:fixed工作？
1 个解决方案
解决方案1
0 已采纳 2015-03-19 18:10:38
The solution was a bit simpler than I'd thought. 解决方案比我想象的要简单。 Using javascript, I was already appending my hide-overflow class to the body and first div element. 使用javascript，我已经将我的hide-overflow类附加到body和第一个div元素上。 That class looked like this: 该类看起来像这样：
.hide-overflow {
overflow: hidden;
}
What fixed my problem was changing it to the following: 解决我的问题的原因是将其更改为以下内容：
.hide-overflow {
overflow: hidden;
width: 100% !important;
height: 100% !important;
-webkit-box-sizing: border-box !important;
-moz-box-sizing: border-box !important;
box-sizing: border-box !important;
}
That's it! 而已！ Just add this class to the <body> tag when the widget shows, and remove it when the widget is hidden. 只需在显示小部件时将此类添加到<body>标记中，然后在隐藏小部件时将其删除即可。
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