让ie6对png透明图片支持起来

时间:2023-03-09 07:31:51
让ie6对png透明图片支持起来

【声明:此文仅是对低版本ie使用透明图片的一个研究,当时出于工作要求,所以花费了一番心思在兼容旧版本ie上,现在对ie8都是做降级处理了。不培养用户坏习惯、引导用户跟随潮流体验新技术应是我们前端开发者的责任。】

一个老生常谈的问题就是ie6不支持透明png图片啊。但其实ie6只是不支持png-24格式的透明背景图片,但对透明背景的png-8图片还是支持的,只是png-8图片只有256色,放到任意浏览器都会呈现白色的锯齿。

当代码这样时:

<style type="text/css">
.gif{
width: 400px;
height:200px;
background:#f00 url(png8.png) no-repeat;
}
</style> <div class="gif"></div>

div中的背景图片是下图的透明背景png-8图片:

让ie6对png透明图片支持起来

浏览器打开的效果如下(chrome,firefox,ie6+都是这么个效果):

让ie6对png透明图片支持起来

看到这些泛白的锯齿要哭瞎了,怎么去除这恶心的锯齿呢,ps保存png-8图片时,有多个选项,经测试通过勾选“扩散透明度仿色”时锯齿的能达到最小,

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" 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如下图所示,锯齿此时没那么恶心:

让ie6对png透明图片支持起来

但是远远不够啊,这个视觉效果还是太差了。上网查询下,这是由于png-8白色杂边导致的问题,可以在保存图片前将杂边的颜色设置成和背景一致来解决。

在ie6下的效果如下,其他浏览器显示效果也一致:

aaarticlea/png;base64,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" alt="" />

此时ie6下png-8透明背景图片能正常显示了,且不只是针对ie6,对其他浏览器也是用,好像很好用,但是png-8只有256色啊,色彩不丰富,而现在广泛使用的png-24有2^24=1678万色,能展示很丰富的色彩,而且没有锯齿。所以如果原图色彩很丰富,那么只能转换为png-8图片作为降级的方法用到ie6上。还有个问题是,杂边处理的前提是图片覆盖区域的背景色是单色,如果是多种颜色,那么总会出现锯齿了。

我们需要寻找更灵活的方法,ie有专用的AlphaImageLoader过滤器,可以让ie6支持png-24的透明背景,而不是将透明色显示为灰色,这里要用到ie hack技巧,将background-image设置为none去掉背景图片,在使用滤镜加载图片。AlphaImageLoader过滤器中的参数src指向要显示的png-24图片,sizingMethod有3个可选值:crop:直接放置到容器中,图片左上角对齐容器左上角,image:让容器的边缘调整至包住整个图片,scale:让图片调整至充满整个容器。

      .gif{
width: 400px;
height:200px;
background: #f00 url(ie6.png) no-repeat;
*background-image:none;
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='png_24.png',sizingMethod=crop);
}

效果妥妥的:

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" alt="" />

不过需要注意的是浏览器会有提示,需要用户点击允许才能运行滤镜效果,否则不仅没有滤镜效果,而且由于取消了背景图片,图片压根就看不到(只看到红色,字是见不到的,图略):

让ie6对png透明图片支持起来

如果觉得一个个图片添加滤镜效果麻烦,还可以用js写个函数一次性将页面所有png图片抓出来添加ie滤镜效果。不过用户喜欢禁掉js脚本的话,就呵呵了。
还有一种方法是利用ie专有的css扩展--行为,引用.htc文件来修复png透明背景问题(也有使用.htc文件来解决圆角框的):
div{
behavior:url(iepngfix.htc);
}
这里有个介绍这种技术的网站:http://www.twinhelix.com/css/iepngfix/,也可以直接下载demo文件,详细使用流程在demo页面有引导:www.twinhelix.com/css/iepngfix/iepngfix.zip
未引用htc文件,可以看到背景灰蓝色:
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" alt="" />
引用htc文件后,透明背景正常显示了(需要点击允许运行阻止的内容才能正常显示):
aaarticlea/png;base64,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" alt="" />
让ie6支持透明背景的png的方法就总结到这里。既然是兼容,就不可能百分百完美,具体用什么技术去完成网页的开发还是要思量下再做决定。虽然开发者总是吐槽兼容旧版本浏览器很恶心,但是旧版本浏览器曾经也作出过巨大贡献。

补充:

评论区有人说连ie8都不去兼容了,我不想多说,拿数据说话,下图截取自百度对浏览器市场份额统计。过去的3个月ie8用户占了21.62%,ie7用户占5.12%,ie6用户占3.85%,我想你作为开发者,不兼容ie低版本,难道是你的网站不对30%的用户开放?当然这个统计基于一般情况,如果知道访问自己网站的特定用户群都使用chrome或firxfox浏览器,那当然可以不去兼容ie低版本。js框架基本抛弃低版本,这个是事实,因为js框架大部分都是外国人写的。而外国人基本用chrome浏览器,这不符合国情,国内依然有很多人在用低版本的ie浏览器,甚至都懒得去升级。我始终觉得,不去兼容多方浏览器的不是好开发者,因为兼容各方浏览器是每个开发者的分内事,而你永远无法要求用户使用和你一样的浏览器。

让ie6对png透明图片支持起来

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