移动端h5页面根据屏幕适配的四种方案

「爱情、让人受尽委屈。」 2021-11-27 05:30 418阅读 0赞

文章转载自 百撕可乐 [https://www.cnblogs.com/web1/p/9812669.html][https_www.cnblogs.com_web1_p_9812669.html]

**方法一：引入淘宝开源的可伸缩布局方案**

引入淘宝开源的可伸缩布局方案：[https://github.com/amfe/lib-flexible（此处可点击）][https_github.com_amfe_lib-flexible]

淘宝的其实也和viewport的有点像，但是它主要是根据设备设备像素比设置scale的值，保持视口device-width始终等于设备物理像素，屏幕大小动态计算根字体大小，具体是将屏幕划分为10等分。这块也可以直接用js实现，后面会提到

具体引入和使用方法，移步github查看，非常详细。

**方法二：viewport 的使用**

github里边，有提到  viewport 的使用。我感觉这篇文章关于viewport 的介绍特别详细，包括比例、是否缩放等的属性介绍特别的详细，虽然文章的内容一大片的字看起来很多，但是请耐心看完，都是干货能很好的让你认识viewport。如果比较着急，请继续往下看总结图吧

[http://www.cnblogs.com/2050/p/3877280.html(此处可点击)][http_www.cnblogs.com_2050_p_3877280.html]

关于 viewport 的，这块直接引用上面文章的内容，我感觉也是最干脆最直接的总结了吧

![aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvOTUwNzgwLzIwMTgxMC85NTA3ODAtMjAxODEwMTgxOTIzNTYxOTItMTI2OTY5MzU1My5wbmc][]

**方法三：使用js+viewport动态设置手动适配rem**

我的编辑器是vscode,添加了插件cssrem自动转换

index.html

![复制代码][aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg]

<!DOCTYPE html>
    <html>
      <head>
        <meta charset="utf-8">
        
        <meta name="viewport" content="width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no" />
        
        <meta name="renderer" content="webkit">
        
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        
        <meta name="HandheldFriendly" content="true">
        
        <meta name="MobileOptimized" content="320">
        
        <meta name="screen-orientation" content="portrait">
        
        <meta name="x5-orientation" content="portrait">
        
        <meta name="full-screen" content="yes">
        
        <meta name="x5-fullscreen" content="true">
        
        <meta name="browsermode" content="application">
        
        <meta name="x5-page-mode" content="app">
        
        <meta name="msapplication-tap-highlight" content="no">
        <meta content="telephone=no" name="format-detection" />
        <meta name="huaban" content="nopin" />
        <link rel="icon" type="image/x-icon" href="/favicon.ico">
        <title>新茶饮</title>
        <script src="/config.js"></script>
       <script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
      </head>
      <body>
        <div id="app"></div>
        
      <script>
        //得到手机屏幕的宽度
        let htmlWidth = document.documentElement.clientWidth || document.body.clientWidth;
        console.log('htmlWidth',htmlWidth)
        //得到html的Dom元素
        let htmlDom = document.getElementsByTagName('html')[0];
        // if(htmlWidth>640){//超过640大小的，字体根部都是16px
        //   htmlWidth=640;
        //   console.log('htmlWidth-true',htmlWidth)
        // }
        //设置根元素字体大小
        htmlDom.style.fontSize = htmlWidth / 40 + 'px';
    
      </script>
        
      </body>
    </html>

![复制代码][aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg]

**方法四：根据css的媒体查询动态设置根部html字体大小**

![复制代码][aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg]

html {font-size: 625%; /*100 ÷ 16 × 100% = 625%*/}
    
    @media screen and (min-width:360px) and (max-width:374px) and (orientation:portrait) {
        html { font-size: 703%; }
    }
    @media screen and (min-width:375px) and (max-width:383px) and (orientation:portrait) {
        html { font-size: 732.4%; }
    }
    @media screen and (min-width:384px) and (max-width:399px) and (orientation:portrait) {
        html { font-size: 750%; }
    }
    @media screen and (min-width:400px) and (max-width:413px) and (orientation:portrait) {
        html { font-size: 781.25%; }
    }
    @media screen and (min-width:414px) and (max-width:431px) and (orientation:portrait){
        html { font-size: 808.6%; }
    }
    @media screen and (min-width:432px) and (max-width:479px) and (orientation:portrait){
        html { font-size: 843.75%; }
    }

[https_www.cnblogs.com_web1_p_9812669.html]: https://www.cnblogs.com/web1/p/9812669.html
[https_github.com_amfe_lib-flexible]: https://github.com/amfe/lib-flexible
[http_www.cnblogs.com_2050_p_3877280.html]: http://www.cnblogs.com/2050/p/3877280.html
[aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvOTUwNzgwLzIwMTgxMC85NTA3ODAtMjAxODEwMTgxOTIzNTYxOTItMTI2OTY5MzU1My5wbmc]: /images/20211126/11cd26ce1d174a889b88ac802d70a494.png
[aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg]: /images/20211126/485023a7fb0c43a5b537143fa60942fb.png