Angular2仿照微信UI实现9张图片上传和预览的示例代

本来在看vue.js没多久,最近在赶一个项目用回了angular2,还是先把ng2搞定吧,毕竟还不怎么懂。这两天我做的是用户表单数据的提交,大部分很简单,双向绑定就完事了,主要还是沟通的问题哈哈哈哈,虽然沟通的时候有点暴躁想甩锅,不过出了门还是高高兴兴吃饭高高兴兴回去。

好了切入问题。这几天做得最久的是仿照微信UI做的图片上传/显示缩略图/预览/删除功能,要求图片1--9张。下面来记录下如何实现微信的图片预览/删除功能。

样式--weui.css

样式用的是微信官方ui,weui.min.css(生产环境下建议使用此压缩版)。

下载地址weui.css/weui.min.css。

样例--weui.io

微信官方自带了demo: weui.io。

主要步骤

在正式进入各个小功能的解说前,先上官方demo->weui.io查看图片上传组件的样式以及源代码。

官方ui显示如下,图片上传的ui在Uploader中。

图片上传的源码从审查元素中可获取,如下所示:

<div class="page uploader js_show">
  <div class="page__hd">
    <h1 class="page__title">Uploader</h1>
    <p class="page__desc">上传组件,一般配合<a class="link" href=" " rel="external nofollow" >组件Gallery</a >来使用。</p >
  </div>
  <div class="page__bd">
    <div class="weui-gallery" id="gallery" style="opacity: 0; display: none;">
      <span class="weui-gallery__img" id="galleryImg" style="background-image:url(./images/pic_160.png)"></span>
      <div class="weui-gallery__opr">
        <a href="javascript:" rel="external nofollow" rel="external nofollow" 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/pic_160.png)"></li>
                <li class="weui-uploader__file" style="background-image:url(./images/pic_160.png)"></li>
                <li class="weui-uploader__file" style="background-image:url(./images/pic_160.png)"></li>
                <li class="weui-uploader__file weui-uploader__file_status" style="background-image:url(./images/pic_160.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/pic_160.png)">
                  <div class="weui-uploader__file-content">50%</div>
                </li>
              </ul>
              <div class="weui-uploader__input-box">
                <input id="uploaderInput" class="weui-uploader__input" type="file" accept="image/*" multiple="">
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
  <div class="page__ft j_bottom">
    <a href="javascript:home()" rel="external nofollow" >< img src="./images/icon_footer_link.png"></a >
  </div>
</div>


      

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