javascript - Mobile Safari - iframe 固定内容
<p><p>Mobile Safari 将 iframe 强制为其内容大小。</p>
<p>所以当 iframe 中有一个固定的 div 时,它不会修复。
是否有一个 CSS 属性可以强制 iframe 在移动设备中滚动并尊重固定内容?</p>
<p><strong>注意</strong>:固定内容在 iframe 内,而不是在容器内,因此 div 滚动无法解决此问题。</p>
<pre><code><iframe src="page-with-fixed-content" style="width: 100%; height: 100%;">
<!-- Fixed layer on the page loaded to iframe -->
<div style="position: fixed; top:0;">
Not Fixed on iPhone (Fixed on desktop)
</div>
</iframe>
</code></pre>
<p> <a href="https://codepen.io/avishic/pen/JzYyeo" rel="noreferrer noopener nofollow">CodePan Example</a> </p>
<p> <a href="/image/igoEz.png" rel="noreferrer noopener nofollow"><img src="/image/igoEz.png" alt="Wanted vs actual behavior"/></a> </p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>几个月前,我在开发 web 应用程序时遇到了这个挑战,在安静地研究了一下之后,以下文章中建议的“Shadow DOM”方法有所帮助。</p>
<p> <a href="https://medium.com/@dvoytenko/amp-ios-scrolling-redo-2-the-shadow-wrapper-approach-experimental-3362ed3c2fa2" rel="noreferrer noopener nofollow">https://medium.com/@dvoytenko/amp-ios-scrolling-redo-2-the-shadow-wrapper-approach-experimental-3362ed3c2fa2</a> .</p>
<pre><code> var sd = document.body.attachShadow({mode: 'open'});
// Main slot will absorb all undistributed children.
var mainSlot = document.createElement('slot');
var scroller = document.createElement('div');
scroller.style = 'background: lightblue; position: absolute; top:
0; left: 0; right: 0; bottom: 0; overflow-x: hidden; overflow-y: auto; -webkit-overflow-scrolling: touch;';
scroller.appendChild(mainSlot);
sd.appendChild(scroller);
// Selectively, it's also possible to distribute fixed elements separately,
// emulating fixed layer transfer.
var fixedLayer = document.createElement('div');
fixedLayer.style = 'height: 0; width: 0; position: fixed;
overflow:visible;';
sd.appendChild(fixedLayer);
var mainFixedSlot = document.createElement('slot');
mainFixedSlot.setAttribute('name', 'fixed');
fixedLayer.appendChild(mainFixedSlot);
function addToFixedLayer(element) {
//var slotId = String(Math.random());
//var fixedSlot = document.createElement('slot');
//fixedSlot.setAttribute('name', slotId);
//fixedLayer.appendChild(fixedSlot);
//element.setAttribute('slot', slotId);
element.setAttribute('slot', 'fixed');
}
/*Call and pass fixed elemetns to addToFixedLayer method so that they stay
fixed while scrolling */
addToFixedLayer(fixedDivId)
</code></pre>
<p>查看此演示 <a href="https://jsfiddle.net/rsva63ep/" rel="noreferrer noopener nofollow">https://jsfiddle.net/rsva63ep/</a> </p></p>
<p style="font-size: 20px;">关于javascript - Mobile Safari - iframe 固定内容,我们在Stack Overflow上找到一个类似的问题:
<a href="https://stackoverflow.com/questions/54924879/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/54924879/
</a>
</p>
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