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Use js to operate iframe to change the interface height

php中世界最好的语言Original: 2018-04-17 16:46:402626browse

This time I will bring you how to use js to operate iframe to change the interface height, and use js to operate iframe to change the interface height. What are the precautions? Here is a practical case, let's take a look.

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<input type="button" value="页面1"/>
<input type="button" value="页面2"/>
<iframe id="iframePage" src="1.html" frameborder="0" scrolling="no"></iframe>
</body>
<script>
//  contentWindow所有浏览器支持，contentDocument IE不支持;  window.parant当前页面的父页面，window.top当前页面的最外层页面
//  iframe防钓鱼:if(window!=window.top){window.top.location.href=window.location.href} 如果最顶层页面不是当前页面，就把最顶层网址指向当前页面网址
    window.onload=function(){
        var oIframe=document.getElementById('iframePage');
        var aBtn=document.getElementsByTagName('input');
        changeHeight();
        function changeHeight(){
            setTimeout(function(){  //必须加一个延迟，不然高度改变会和页面加载冲突，事先不了高度变化
                oIframe.height=oIframe.contentWindow.document.body.offsetHeight;
            },100);
        }
        aBtn[0].onclick=function(){
            oIframe.src='1.html';
            changeHeight();
        };
        aBtn[1].onclick=function(){
            oIframe.src='2.html';
            changeHeight();
        };
    };
</script>
</html>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Use js to operate iframe to change the interface height

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