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Home Web Front-end H5 Tutorial 苹果官网是怎么做到完美保证多平台浏览体验的?

苹果官网是怎么做到完美保证多平台浏览体验的?

Jun 07, 2016 am 08:43 AM

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首页的宽度随着浏览器自适应,最小 1024px ,最大 1440px 。高度最小 830px ,最大 1472px 。

背景图片固定 1440px 宽, left 从 50% 开始,但是因为 margin-left 是 -720px ,这就实现了居中。背景图就那么大,居中显示,小了就把两边切掉一些,但因为浮动范围也不是很大所以切掉得也不多。

导航栏保证居中,窗口太宽了两边就空白,但是因为其他页面元素也限制在 1440px 范围内,所以不显得违和。

下面的四个图片每个是个
  • ,宽度自动 25% 。

    导航栏和页脚的文本是真的文本,其他的都是图片,所以在任何设备商显示效果都一样。

    页脚位置 absolute ,左、下、右都设成0,所以能贴在底下。但是因为 body 有最大高度限制,页脚也不是可以无限制地下降。

    上面大致说了苹果官网怎么做到多平台显示效果一样,下面讨论一下原文体中的“完美保证多平台浏览体验”。

    在 Retina 屏幕上,图片自动加载成4倍分辨率的版本。就比如说左下角那个 iPhone 5s 的广告,普通屏幕上加载的是这个图片:
    苹果官网是怎么做到完美保证多平台浏览体验的?
    但是在 Retina 屏幕上加载的是这个(知乎上可能自动把图片缩小了点,但是宽高应该是上图的2倍):
    苹果官网是怎么做到完美保证多平台浏览体验的?
    其他图片(包括大背景图)也都是有两个版本,如果是 Retina 设备就自动加载分辨率高的,但是 HTML 里面的宽高不变,所以页面布局不受影响。这背后的技术可以参考这篇文章: blog.cloudfour.com/how-

    最后我想说,苹果官网并没有保证在自家 iPhone 上的体验最佳。这个网站在 iPhone 上面看,有些文本和链接都太小,必须局部放大才能看得比较舒服,再加上有些子页面中有支持手势的页面元素(比如一个画廊左右滑动可以查看前后的图片),这又会导致跟缩放和移动当前页面区域的操作冲突。我不认为这样的体验算得上“完美”。很多网站都专门为移动设备做了一个单独的优化版本,但苹果却没有表率为自家移动设备优化体验,这点确实想不通。 右键审查元素看下不完了么,文字都是图片。不同分辨率的设备加载的图片不一样而已。 我觉得在iPhone上的字就是败笔啊。一直不理解蚂蚁一样大的字为何会出现在Apple主页上。每次都要经过放大才可以切换标签。
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