将网站添加到iPhone的主屏幕上_html/css_WEB-ITnose
我之前有篇文章介绍过如何将网站固定到Windows的开始菜单，并可以自定义图标、颜色以及Windows推送通知，其实Apple也有类似的功能，通过在网页的head部分添加link标记，在Safari浏览器中我们可以轻易地将网站添加到iPhone的主屏幕，使它看起来就像一个普通的app一样。
要实现该功能很简单，只需要在你网站的根目录下放一张名为"apple-touch-icon.png"的图片即可，像添加favicon一样（将名为"favicon.ico"的图标放在网站的根目录下，浏览器会自动加载并显示网站的图标）。
如果需要精确控制，添加下面的代码：
1. 在网页的head部分添加以下代码，其中href属性值为图片的路径。
<link rel="apple-touch-icon" href="/custom_icon.png"/>
2. 为满足不同分辨率设备的显示效果，可以添加三个不同分辨率的图片：57 x 57像素用于前三代iPhone和iPod Touch，72 x 72像素用于iPad，114 x 114像素用于采用Retina display的iPhone4和iPod Touch等后续产品。通过sizes属性控制：
<link rel="apple-touch-icon" href="touch-icon-iphone.png" /><link rel="apple-touch-icon" sizes="72x72" href="touch-icon-ipad.png" /><link rel="apple-touch-icon" sizes="114x114" href="touch-icon-iphone4.png" />
3. 另外，通过将rel属性的值修改成"apple-touch-icon-precomposed"来避免iOS将图标添加高光效果。
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