发表于 2016-05-18 10:22:15 阅读量(0)
发表于 2013 年 12 月 12 日 由 sisiyu an
aria-label属性
正常情况下，会在表单里给input组件指定对应的label，当用户tab到输入框时，读屏软件就会读出相应label里的文本。
如：
当没有给输入框设计对应的label文本的位置时，aria-label属性为组件指定内置的文本标签。它不在视觉上呈现。
如： aria-label=”用户名” />
此时，当焦点落到该输入框时，读屏软件就会读出aria-label里的内容，即“用户名”。
经测试，aria-label只有加在可被tab到的元素上，读屏才会读出其中的内容。
以下情况，也是可以读出的：可被tab的span标签
aria-labelledby属性
当想要的标签文本已在其他元素中存在时，可以将其值为该元素的id。
” form-title” >使用手机号码注册
表单区添加了landmark标识role=”form”，在争渡中使用字母”D“键会在lankmark标识之间跳转。
当跳转到该区域时，不仅会读出”表单区“，也会读出”使用手机号码注册“。
如果一个元素同时有aria-labelledby和aria-label，读屏软件会优先读出aria-labelledby的内容。
测试软件：争渡读屏 浏览器：IE9
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