weui框架实现上传、预览和删除图片功能代码

2019-11-19 15:41:43

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来源：转载

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jQuery WeUI 是专为微信公众账号开发而设计的一个简洁而强大的UI库，包含全部WeUI官方的CSS组件，并且额外提供了大量的拓展组件，丰富的组件库可以极大减少前端开发时间。

jQuery WeUI 的最大特点是它只提供UI组件，并不会对项目所使用的框架和其他库有任何的限制，几乎可以在任何环境下使用。无论你的项目是基于jQuery，还是 React, Angular, Vue，你都会发现 jQuery WeUI 能非常方便的和他们结合使用。既是你的项目是一个有很悠久历史的老项目，也几乎可以做到拿来即用。

weui框架暂时只有css文件，并没有js文件实现其功能，我在其html+css后面增加了js实现其功能，为大家提供方便，也为自己保存记录。

<!doctype html><html>  <head>    <meta charset="UTF-8">    <title></title>    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />    <link href="../css/mui.min.css" rel="external nofollow" rel="stylesheet" />    <link rel="stylesheet" href="weui.min.css" rel="external nofollow" rel="external nofollow" />    <link rel="stylesheet" href="jquery-weui.css" rel="external nofollow" rel="external nofollow" />  </head>  <body>    <div class="weui-gallery" id="gallery">      <span class="weui-gallery__img" id="galleryImg"></span>      <div class="weui-gallery__opr">        <a href="javascript:" rel="external nofollow" class="weui-gallery__del">          <i class="weui-icon-delete weui-icon_gallery-delete"></i>        </a>      </div>    </div>    <div class="weui-cells weui-cells_form">      <div class="weui-cell">        <div class="weui-cell__bd">          <div class="weui-uploader">            <div class="weui-uploader__hd">              <p class="weui-uploader__title">图片上传</p>              <div class="weui-uploader__info">0/2</div>            </div>            <div class="weui-uploader__bd">              <ul class="weui-uploader__files" id="uploaderFiles">                <li class="weui-uploader__file" style="background-image:url(../images/applogo180x180.png)"></li>                <li class="weui-uploader__file" style="background-image:url(../images/applogo180x180.png)"></li>                <li class="weui-uploader__file" style="background-image:url(../images/applogo180x180.png)"></li>                <li class="weui-uploader__file weui-uploader__file_status" style="background-image:url(../images/applogo180x180.png)">                  <div class="weui-uploader__file-content">                    <i class="weui-icon-warn"></i>                  </div>                </li>                <li class="weui-uploader__file weui-uploader__file_status" style="background-image:url(../images/applogo180x180.png)">                  <div class="weui-uploader__file-content">50%</div>                </li>              </ul>              <div class="weui-uploader__input-box">                <input id="uploaderInput" class="weui-uploader__input zjxfjs_file" type="file" accept="image/*" multiple="">              </div>            </div>          </div>        </div>      </div>    </div>    <script src="../js/mui.min.js"></script>    <script type="text/javascript" src="jquery-2.1.4.js"></script>    <script type="text/javascript" src="jquery-weui.js"></script>    <script type="text/javascript">      mui.init();      $(function() {        var tmpl = '<li class="weui-uploader__file" style="background-image:url(#url#)"></li>',          $gallery = $("#gallery"),          $galleryImg = $("#galleryImg"),          $uploaderInput = $("#uploaderInput"),          $uploaderFiles = $("#uploaderFiles");        $uploaderInput.on("change", function(e) {          var src, url = window.URL || window.webkitURL || window.mozURL,            files = e.target.files;          for(var i = 0, len = files.length; i < len; ++i) {            var file = files[i];            if(url) {              src = url.createObjectURL(file);            } else {              src = e.target.result;            }            $uploaderFiles.append($(tmpl.replace('#url#', src)));          }        });        var index; //第几张图片        $uploaderFiles.on("click", "li", function() {          index = $(this).index();          $galleryImg.attr("style", this.getAttribute("style"));          $gallery.fadeIn(100);        });        $gallery.on("click", function() {          $gallery.fadeOut(100);        });        //删除图片 删除图片的代码也贴出来。        $(".weui-gallery__del").click(function() { //这部分刚才放错地方了，放到$(function(){})外面去了          console.log('删除');          $uploaderFiles.find("li").eq(index).remove();        });      });    </script>  </body></html>

补充说明上述代码中引用以下的这四个文件可以到http://jqweui.com这个weui的官网去下载

<link rel="stylesheet" href="weui.min.css" rel="external nofollow" rel="external nofollow" /> <link rel="stylesheet" href="jquery-weui.css" rel="external nofollow" rel="external nofollow" /> <script type="text/javascript" src="jquery-2.1.4.js"> </script><script type="text/javascript" src="jquery-weui.js"></script>

总结

以上所述是小编给大家介绍的weui框架实现上传、预览和删除图片功能代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对武林网网站的支持！

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