内联SVG可以使用Alt标签吗? [英] Alt tag possible for inline SVG?

问题描述

有没有办法给内联 SVG 一个 alt 标签?这是我的内联 SVG 代码，但是 alt 标签没有显示(我什至不确定我对 alt 标签进行编码的方式是有效，在网上搜索澄清后):

Is there a way to give an inline SVG an alt tag? Here is the code that I have for my inline SVG, but the alt tag is not showing (and I'm not even sure the way that I coded the alt tag is valid, after searching online for clarification):

<svg version="1.1" id="svg-header-filter" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="27px" height="27px" viewBox="0 0 37 37" enable-background="new 0 0 37 37" xml:space="preserve" alt="Hello world!">
    <path class="header-filter-circle" d="M17.796,0C7.947,0,0,7.988,0,17.838s7.947,17.787,17.796,17.787c9.848,0,17.829-7.935,17.829-17.783 C35.625,7.988,27.644,0,17.796,0z"/>
    <g>
    <path class="header-filter-icon" fill="#FFFFFF" d="M15.062,30.263v-9.935l-8.607-8.703h22.343l-8.744,8.727v5.029L15.062,30.263z M8.755,12.625l7.291,7.389 v7.898l3.025-2.788v-5.086l7.426-7.413H8.755z"/>
    </g>
</svg>

这里是 JSFiddle:http://jsfiddle.net/FsCMM

And here is the JSFiddle: http://jsfiddle.net/FsCMM

推荐答案

你应该使用标题元素，而不是 alt 标签来显示工具提示:

You should use title element, not alt tag, to display tooltips:

<svg version="1.1" id="svg-header-filter" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="27px" height="27px" viewBox="0 0 37 37" enable-background="new 0 0 37 37" xml:space="preserve">
    <title>Hello world!</title>
    <path class="header-filter-circle" d="M17.796,0C7.947,0,0,7.988,0,17.838s7.947,17.787,17.796,17.787c9.848,0,17.829-7.935,17.829-17.783 C35.625,7.988,27.644,0,17.796,0z"/>
    <g>
        <path class="header-filter-icon" fill="#FFFFFF" d="M15.062,30.263v-9.935l-8.607-8.703h22.343l-8.744,8.727v5.029L15.062,30.263z M8.755,12.625l7.291,7.389 v7.898l3.025-2.788v-5.086l7.426-7.413H8.755z"/>
    </g>
</svg>

<小时>

对于 chrome34:用 g 元素包裹图形并在其中插入标题元素.

---

for chrome34: wrap graphics by g element and insert title element to this.

<svg version="1.1" id="svg-header-filter" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="27px" height="27px" viewBox="0 0 37 37" enable-background="new 0 0 37 37" xml:space="preserve">
<g>
    <title>Hello world!</title>
    <path class="header-filter-circle" d="M17.796,0C7.947,0,0,7.988,0,17.838s7.947,17.787,17.796,17.787c9.848,0,17.829-7.935,17.829-17.783 C35.625,7.988,27.644,0,17.796,0z"/>
    <g>
        <path class="header-filter-icon" fill="#FFFFFF" d="M15.062,30.263v-9.935l-8.607-8.703h22.343l-8.744,8.727v5.029L15.062,30.263z M8.755,12.625l7.291,7.389 v7.898l3.025-2.788v-5.086l7.426-7.413H8.755z"/>
    </g>
</g>
</svg>

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