背景
随着公司业务的发展，现在的产品真的是越来越 体(sang)贴(xin)用(bing)户(kuang) 了，刚好前阵子准备做一个后台可以让用用户 DIY 自己的小程序，不小心看到了 某网 提供了一套图标库，用户可以自主选择，并且可以进行颜色配置的时候，我就感觉事情不妙~
当时脑子一热，桌子一拍，我们也需要提供这样的功能，而且要做的比他们还强大...
作为开发的我默默的留下了这张图~
我们知道小程序里面是不支持类似 ttf woff 这类字体的，直接引入编译都过不去~
这个就是要告诉我们，我们不能像 H5 那样直接把字体下载下来然后引入到样式中，这条道路是行不通了，只能重新找找方案了~
嗯，我也不 藏着掖着了 ， 接下来给大家 安利 2 中解决方案~
解决方案
方案一
利用小程序中不支持 ttf 字体，却支持 base64 的特点，我们可以通过将 ttf 字体转码成 base64 ，再通过 iconfont 的特点，通过设置字体大小和颜色来达到目的。
其具体实现如下：
- 1.我们可以先去阿里提供的图标库 官网 下载我们需要的图标，一般来说都够用了，这里我随便好了 3 个作为测试用 ， 点击 下载代码 将代码下载到本地~
- 2.解压我们刚才下载的包，会有以下这些文件，但对于我们来说，会用到的只有
iconfont.css和iconfont.ttf这两个文件，
- 3.我们要对
iconfont.ttf这个文件进行转码，将它转成base64格式，刚好 这个网站 就提供了这个功能（pass：这个网站可能会有点慢，可以的话代理加个速），按照下图的步骤，分别上传ttf文件，选择配置，点击转换。
- 4.转换完成如下图所示，废话不多说，直接下载下来解压，我们需要的是里面
stylesheet.css这个文件
- 5.我们在小程序里的静态资源文件夹里新建一个叫
iconfont.wxss样式文件，将 上面解压出来的stylesheet.css里面的内容全部拷贝到iconfont.wxss中，另外，还记得我们上面说的iconfont.css吗？这时候就要派上用场了，我们打开iconfont.css这个样式文件，将下面的样式，也就是我用红框标注的内容复制到iconfont.wxss文件里，注意上面的不需要复制！！
到此为止，准备工作算是已经完成了，这时候你的 iconfont.wxss 应该类似下面这样
iconfont.wxss
@font-face {
font-family: 'iconfont';
src: url(data:font/truetype;charset=utf-8;base64,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) format('truetype');
font-weight: normal;
font-style: normal;
}
.iconfont {
font-family:"iconfont" !important;
font-size:16px;
font-style:normal;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
.icon-map:before { content: "\e6a2"; }
.icon-success:before { content: "\e6b3"; }
.icon-atm:before { content: "\e6bd"; }
复制代码-
6.接着，将我们的字体文件引入到
app.wxss全局 , 这样你就可以在任何你想用到的地方进行调用了，只需要将class写对就没什么问题了，<!--index.wxml--> <view class="container"> <view class='block'> <text class='iconfont icon-map'></text> <text>地图</text> </view> <view class='block'> <text class='iconfont icon-success'></text> <text>成功</text> </view> <view class='block'> <text class='iconfont icon-atm'></text> <text>atm</text> </view> </view> 复制代码怎么样，成功了吧！
什么？ 你要换颜色，难不倒我的，只要改变对应的
color就可以了~<!--index.wxml--> <view class="container"> <view class='block'> <text class='iconfont icon-map' style='color : red'></text> <text>地图</text> </view> <view class='block'> <text class='iconfont icon-success' style='color : green'></text> <text>成功</text> </view> <view class='block'> <text class='iconfont icon-atm' style='color : blue'></text> <text>atm</text> </view> </view> 复制代码
嗯，是不是可以插会儿腰了~
且慢，刚不是说两种方案么，怎么到这里就叉起腰来了，还没完呢，等会嘚瑟哈！！
方案二
刚介绍了方案一，确实是一种选择，我们只需约定好样式，类名，后端将颜色什么的返回给我们就好了~
但是这种方案存在弊端，不够灵活，如果我们要更新我们的图标库，那么我们上面的流程又得走一遍，如果后面图标库的类型变多，那么我们转码后的文件会随之变大，这对于小程序来说是致命的，因为做小程序都知道，我们都在时刻想着如何用最少的代码发挥最大的价值！
所以，这种方案有一定的局限性，因此才出了第二套方案~
第二套方案的思路是借助 svg 矢量图具有不失真和可以自主填充颜色的特点，通过 fill 属性，用户可以自定义填充颜色，但是小程序里面不支持 svg 标签的，我们通过颜色选择器将用户选择好的颜色填充到 svg 里，在通过转码将换过颜色的 svg 转成 base64 编码发给小程序，小程序可以直接用在 image 标签中的 src 属性上~
我们一起来试试~
- 1.我们还是先去阿里提供的图标库 官网 下载我们需要的图标，这次跟第一次有些不一样，这次我们要选择下载素材，选择
svg~
- 2.将下载好的
svg源代码直接放在我们的图标库里面，选择某个图标之后，通过颜色选择器我们可以通过js设置对应的svg图标的fill属性，动态的给图标填充不同的颜色，差不多就跟下面的效果有点相似~
- 3.接下来可以将换过颜色的
svg通过svg转base64的插件将其转换成base64编码，这里为了方便，我直接偷懒，在线转换了，对应的base64编码如下：
<!--map-->
data:image/svg+xml;base64,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
<!--success-->
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复制代码- 4.接着我们只需要把对应的
base64编码发给小程序端，小程序直接放在image组件中的src属性即可，对于样式来说，可以直接修改image的样式来控制icon样式，效果如下：
ok~ 还算是比较圆满的完成了任务~
这下产品总不会刁难我了吧~
结语
到此，我们已经 get 到了两种小程序中实现 icon 自定义颜色的解决方案，对比发现，第一种方案的特点是实现起来比较简单，步骤什么的也都还ok，就是拓展性不强，每次改动都需要重新再来一遍，而且对于比较多的图标来说小程序空间占用较大，有一定的局限性，而第二种方案相比于第一种来说虽然在实现过程中稍微繁琐了一些，但是带来的效果是显而易见的，解决了第一种方案的弊端，拓展性什么的都很好，是我比较推荐的，也是我们正在采用的一种方案~
当然，这不过是我的一种实现思路，如果你有关于这方面更好的解决方案记得及时艾特我，我已经迫不及待的等待学习了~