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weui框架實(shí)現(xiàn)上傳、預(yù)覽和刪除圖片功能代碼

 更新時(shí)間：2017年08月24日 08:49:45   作者：GengbinZ  
weui框架暫時(shí)只有css文件，并沒(méi)有js文件實(shí)現(xiàn)其功能，我在其html+css后面增加了js實(shí)現(xiàn)其功能，為大家提供方便，也為自己保存記錄。具體實(shí)例代碼大家參考下本文

jQuery WeUI 是專為微信公眾賬號(hào)開(kāi)發(fā)而設(shè)計(jì)的一個(gè)簡(jiǎn)潔而強(qiáng)大的UI庫(kù)，包含全部WeUI官方的CSS組件，并且額外提供了大量的拓展組件，豐富的組件庫(kù)可以極大減少前端開(kāi)發(fā)時(shí)間。

jQuery WeUI 的最大特點(diǎn)是它只提供UI組件，并不會(huì)對(duì)項(xiàng)目所使用的框架和其他庫(kù)有任何的限制，幾乎可以在任何環(huán)境下使用。無(wú)論你的項(xiàng)目是基于jQuery，還是 React, Angular, Vue， 你都會(huì)發(fā)現(xiàn) jQuery WeUI 能非常方便的和他們結(jié)合使用。既是你的項(xiàng)目是一個(gè)有很悠久歷史的老項(xiàng)目，也幾乎可以做到拿來(lái)即用。

weui框架暫時(shí)只有css文件，并沒(méi)有js文件實(shí)現(xiàn)其功能，我在其html+css后面增加了js實(shí)現(xiàn)其功能，為大家提供方便，也為自己保存記錄。

<!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">圖片上傳</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; //第幾張圖片
        $uploaderFiles.on("click", "li", function() {
          index = $(this).index();
          $galleryImg.attr("style", this.getAttribute("style"));
          $gallery.fadeIn(100);
        });
        $gallery.on("click", function() {
          $gallery.fadeOut(100);
        });
        //刪除圖片 刪除圖片的代碼也貼出來(lái)。
        $(".weui-gallery__del").click(function() { //這部分剛才放錯(cuò)地方了，放到$(function(){})外面去了
          console.log('刪除');
          $uploaderFiles.find("li").eq(index).remove();
        });
      });
    </script>
  </body>
</html>

補(bǔ)充說(shuō)明上述代碼中引用以下的這四個(gè)文件可以到http://jqweui.com這個(gè)weui的官網(wǎng)去下載

<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>

總結(jié)

以上所述是小編給大家介紹的weui框架實(shí)現(xiàn)上傳、預(yù)覽和刪除圖片功能代碼，希望對(duì)大家有所幫助，如果大家有任何疑問(wèn)請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持！

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