How to implement image loading component in vue-JS Tutorial-php.cn

How to implement image loading component in vue

亚连

Release： 2018-06-07 16:45:57

Original

2126 people have browsed it

Below I will share with you an article on Vue to implement the loading component before the image loading is completed. It has a good reference value and I hope it will be helpful to everyone.

is as follows:

<template>
 <img :src="url">
</template>
<script>
 export default {
  props: [&#39;src&#39;], // 父组件传过来所需的url
  data() {
   return {
    url: &#39;http://www.86y.org/images/loading.gif&#39; // 先加载loading.gif
   }
  },
  mounted() {
   var newImg = new Image()
   newImg.src = this.src
   newImg.onerror = () => { // 图片加载错误时的替换图片
    newImg.src = &#39;https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1489486509807&di=22213343ba71ad6436b561b5df999ff7&imgtype=0&src=http%3A%2F%2Fa0.att.hudong.com%2F77%2F31%2F20300542906611142174319458811.jpg&#39;
   }
   newImg.onload = () => { // 图片加载成功后把地址给原来的img
    this.url = newImg.src
   }
  }
 }
</script>

Copy after login

The following is pure js code

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>loading</title>
</head>
<body>
 <img id="img">
 <script>
  window.onload = () => {
   var img = document.querySelector(&#39;#img&#39;);
   img.src = &#39;http://www.86y.org/images/loading.gif&#39;; // 先加载loading.gif
   var newImg = new Image();
   newImg.src = &#39;https://avatars3.githubusercontent.com/u/1?v=3&#39;;
   newImg.onerror = () => { // 图片加载错误时的替换图片
    newImg.src = &#39;https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1489486509807&di=22213343ba71ad6436b561b5df999ff7&imgtype=0&src=http%3A%2F%2Fa0.att.hudong.com%2F77%2F31%2F20300542906611142174319458811.jpg&#39;;
   }
   newImg.onload = () => { // 图片加载成功后把地址给原来的img
    img.src = newImg.src
   }
  }
 </script>
</body>
</html>

Copy after login

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

How to implement ajax front-end and back-end cross-domain requests

Customize ajax to support cross-domain components (detailed tutorial)

How to implement verification code to obtain countdown effect through WeChat applet

The above is the detailed content of How to implement image loading component in vue. For more information, please follow other related articles on the PHP Chinese website!