当 iframe 内容的高度改变时自动调整 iframe 高度(同域)

这真的很简单，应该能捕捉到相关的变化.如果没有，您可以将其与上面的事件侦听器解决方案结合使用，以确保更新！var $myIframe = $('#myIframe');var myIframe = $myIframe[0];var MutationObserver = window.MutationObserver ||window.WebKitMutationObserver;myIframe.addEventListener('load', function() {setIframeHeight();var target = myIframe.contentDocument.body;var 观察者 = 新的 MutationObserver(function(mutations) {setIframeHeight();});变量配置 = {属性:真实，childList: 真,字符数据:真，子树:真};观察者.观察(目标，配置)；});myIframe.src = 'iframe.html';函数 setIframeHeight() {$myIframe.height('auto');var newHeight = $('html', myIframe.contentDocument).height();$myIframe.height(newHeight);}值得一提的是:上溢/下溢事件.阅读在这里(有很多).和 在这里查看我的演示(不在 IE 11 中工作！).这个是一个很酷的解决方案，但它不再适用于 IE.可能可以调整它，但我宁愿使用上述解决方案之一，即使我不得不回退到 1 秒 setInterval 对于旧浏览器，只是因为它比这简单得多解决方案.I am loading an iframe inside a page, which the length of the content of the iframe will be changed from time to time. I have implemented the following solution. However the height is fixed as the dyniframesize only get call when iframe.onload.It is possible to have the iframe to be resized accordingly from time to time the height of the iframe changed? <iframe src ="popup.html" frameborder="0" marginheight="0" marginwidth="0" frameborder="0" scrolling="auto" id="ifm" name="ifm" onload="javascript:dyniframesize('ifm');" width="100%"></iframe>function dyniframesize(down) {var pTar = null;if (document.getElementById){pTar = document.getElementById(down);}else{eval('pTar = ' + down + ';');}if (pTar && !window.opera){//begin resizing iframepTar.style.display="block"if (pTar.contentDocument && pTar.contentDocument.body.offsetHeight){//ns6 syntaxpTar.height = pTar.contentDocument.body.offsetHeight +20;pTar.width = pTar.contentDocument.body.scrollWidth+20;}else if (pTar.Document && pTar.Document.body.scrollHeight){//ie5+ syntaxpTar.height = pTar.Document.body.scrollHeight;pTar.width = pTar.Document.body.scrollWidth;}}}</script> 解决方案 To my knowledge, there isn't a very natural way of doing this, but there are some options.setInterval()You could use setInterval() to repeatadly check the iframe's content height and adjust it if needed. This is simple, but inefficient.Event ListenersAny change of content in the iframe's content (and therefore height) is usually triggered by some event. Even if you're adding content from outside of the iframe, that "add" is probably triggered by a button click, for example. Here's something that might work for you: Live demo here (click).var myIframe = document.getElementById('myIframe');window.addEventListener('click', resizeIframe);window.addEventListener('scroll', resizeIframe);window.addEventListener('resize', resizeIframe);myIframe.contentWindow.addEventListener('click', resizeIframe);function resizeIframe() { console.log('resize!');}Mutation ObserverThis solution works in all up-to-date browsers - http://caniuse.com/mutationobserverLive demo here (click).It's really simple and should catch the relevant changes. If not, you could combine it with the event listener solution above to be sure things are updated!var $myIframe = $('#myIframe');var myIframe = $myIframe[0];var MutationObserver = window.MutationObserver || window.WebKitMutationObserver;myIframe.addEventListener('load', function() { setIframeHeight(); var target = myIframe.contentDocument.body; var observer = new MutationObserver(function(mutations) { setIframeHeight(); }); var config = { attributes: true, childList: true, characterData: true, subtree: true }; observer.observe(target, config);});myIframe.src = 'iframe.html';function setIframeHeight() { $myIframe.height('auto'); var newHeight = $('html', myIframe.contentDocument).height(); $myIframe.height(newHeight);}Honorable mention to: overflow/underflow events.Read about it here (there's A LOT to it).and see my demo here (doesn't work in IE 11!).This was a cool solution, but it's no longer working in IE. It might be possible to tweak it, but I'd rather use one of the above solutions, even if I had to fallback to a 1 second setInterval for older browsers, just because it's a lot simpler than this solution. 这篇关于当 iframe 内容的高度改变时自动调整 iframe 高度(同域)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！