• Image 图片
    • 基础用法
    • 占位内容
    • 加载失败
    • 懒加载
    • Attributes
    • Events
    • Slots

    Image 图片

    图片容器,在保留原生img的特性下,支持懒加载,自定义占位、加载失败等

    基础用法

    Image 图片 - 图1

    可通过fit确定图片如何适应到容器框,同原生 object-fit。

    1. <div class="demo-image">
    2. <div class="block" v-for="fit in fits" :key="fit">
    3. <span class="demonstration">{{ fit }}</span>
    4. <el-image
    5. style="width: 100px; height: 100px"
    6. :src="url"
    7. :fit="fit"></el-image>
    8. </div>
    9. </div>
    10. <script>
    11. export default {
    12. data() {
    13. return {
    14. fits: ['fill', 'contain', 'cover', 'none', 'scale-down'],
    15. url: 'https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg'
    16. }
    17. }
    18. }
    19. </script>

    占位内容

    Image 图片 - 图2

    可通过slot = placeholder可自定义占位内容

    1. <div class="demo-image__placeholder">
    2. <div class="block">
    3. <span class="demonstration">默认</span>
    4. <el-image :src="src"></el-image>
    5. </div>
    6. <div class="block">
    7. <span class="demonstration">自定义</span>
    8. <el-image :src="src">
    9. <div slot="placeholder" class="image-slot">
    10. 加载中<span class="dot">...</span>
    11. </div>
    12. </el-image>
    13. </div>
    14. </div>
    15. <script>
    16. export default {
    17. data() {
    18. return {
    19. src: 'https://cube.elemecdn.com/6/94/4d3ea53c084bad6931a56d5158a48jpeg.jpeg'
    20. }
    21. }
    22. }
    23. </script>

    加载失败

    Image 图片 - 图3

    可通过slot = error可自定义加载失败内容

    <div class="demo-image__error">
      <div class="block">
        <span class="demonstration">默认</span>
        <el-image></el-image>
      </div>
      <div class="block">
        <span class="demonstration">自定义</span>
        <el-image>
          <div slot="error" class="image-slot">
            <i class="el-icon-picture-outline"></i>
          </div>
        </el-image>
      </div>
    </div>
    

    懒加载

    Image 图片 - 图4

    可通过lazy开启懒加载功能,当图片滚动到可视范围内才会加载。可通过scroll-container来设置滚动容器,若未定义,则为最近一个overflow值为autoscroll的父元素。

    <div class="demo-image__lazy">
      <el-image v-for="url in urls" :key="url" :src="url" lazy></el-image>
    </div>
    
    <script>
      export default {
        data() {
          return {
            urls: [
              'https://fuss10.elemecdn.com/a/3f/3302e58f9a181d2509f3dc0fa68b0jpeg.jpeg',
              'https://fuss10.elemecdn.com/1/34/19aa98b1fcb2781c4fba33d850549jpeg.jpeg',
              'https://fuss10.elemecdn.com/0/6f/e35ff375812e6b0020b6b4e8f9583jpeg.jpeg',
              'https://fuss10.elemecdn.com/9/bb/e27858e973f5d7d3904835f46abbdjpeg.jpeg',
              'https://fuss10.elemecdn.com/d/e6/c4d93a3805b3ce3f323f7974e6f78jpeg.jpeg',
              'https://fuss10.elemecdn.com/3/28/bbf893f792f03a54408b3b7a7ebf0jpeg.jpeg',
              'https://fuss10.elemecdn.com/2/11/6535bcfb26e4c79b48ddde44f4b6fjpeg.jpeg'
            ]
          }
        }
      }
    </script>
    

    Attributes

    参数说明类型可选值默认值
    src图片源,同原生string-
    fit确定图片如何适应容器框,同原生 object-fitstringfill / contain / cover / none / scale-down-
    alt原生 altstring--
    referrer-policy原生 referrerPolicystring--
    lazy是否开启懒加载booleanfalse
    scroll-container开启懒加载后,监听 scroll 事件的容器string / HTMLElement最近一个 overflow 值为 auto 或 scroll 的父元素

    Events

    事件名称说明回调参数
    load图片加载成功触发(e: Event)
    error图片加载失败触发(e: Error)

    Slots

    名称说明
    placeholder图片未加载的占位内容
    error加载失败的内容