vue目首屏添加skeleton骨架屏

1. 安装插件：npm install vue-skeleton-webpack-plugin 

2. 在src目录下创建 Skeleton.vue

    <template>
      <div class="skeleton-wrapper">
        <header class="skeleton-header"></header>
        <section class="skeleton-block">
          <img src="data:image/svg+xml;base64,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">
          <img src="data:image/svg+xml;base64,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">
        </section>
      </div>
    </template>
     
    <script>
      export default {
        name: 'skeleton'
      }
    </script>
     
    <style scoped>
      .skeleton-header {
        height: 40px;
        background: #1976d2;
        padding:0;
        margin: 0;
        width: 100%;
      }
      .skeleton-block {
        display: flex;
        flex-direction: column;
        padding-top: 8px;
      }
    </style>

3. 在src目录下创建entry-skeleton.js文件

    import Vue from 'vue'
    import Skeleton from './Skeleton'
    export default new Vue({
      components: {
        Skeleton
      },
      template: '<Skeleton />'
    })

4. 在build 目录下创建 webpack.skeleton.conf.js

    'use strict';
    const path = require('path')
    const merge = require('webpack-merge')
    const baseWebpackConfig = require('./webpack.base.conf')
    const nodeExternals = require('webpack-node-externals')
     
    function resolve(dir) {
      return path.join(__dirname, dir)
    }
     
     console.log('webpack.skeleton.conf')
    module.exports = merge(baseWebpackConfig, {
      target: 'node',
      devtool: false,
      entry: {
        app: resolve('../src/entry-skeleton.js')
      },
      output: Object.assign({}, baseWebpackConfig.output, {
        libraryTarget: 'commonjs2'
      }),
      externals: nodeExternals({
        whitelist: /\.css$/
      }),
      plugins: []
    })

5. 在webpack.dev.conf.js和webpack.prod.conf.js分别加入

    //首屏加载骨架
    const SkeletonWebpackPlugin = require('vue-skeleton-webpack-plugin')
    // inject skeleton content(DOM & CSS) into HTML
    new SkeletonWebpackPlugin({
      webpackConfig: require('./webpack.skeleton.conf'),
      quiet: true
    })

6. 在index.html文件#app标签里添加一下代码

    <style type="text/css">
        html,body{
            margin: 0;
            padding: 0;
        }
        
        /*第一种方法*/
        /*.skeleton {
                padding: 10px;
            }
             
            .skeleton .skeleton-head,
            .skeleton .skeleton-title,
            .skeleton .skeleton-content {
                background: rgb(194, 207, 214);
            }
             
            .skeleton-head {
                width: 100px;
                height: 100px;
                float: left;
            }
             
            .skeleton-body {
                margin-left: 110px;
            }
             
            .skeleton-title {
                width: 500px;
                height: 60px;
            }
             
            .skeleton-content {
                width: 260px;
                height: 30px;
                margin-top: 10px;
            } */
            
            /*第二种情况*/
            /*.skeleton .skeleton-head,
            .skeleton .skeleton-title,
            .skeleton .skeleton-content {
                background: rgb(194, 207, 214);
                background-image: linear-gradient(90deg,rgba(255, 255, 255, 0.15) 25%, transparent 25%);
                background-size: 20rem 20rem;
                animation: skeleton-stripes 1s linear infinite;
            }
             
            @keyframes skeleton-stripes {
                from {
                    background-position: 0 0 ;
                }
                to {
                    background-position: 20rem 0;
                }
            }*/
            
            
            /*第三种情况*/
            .skeleton {
              padding: 10px;
            }
             
            .skeleton .skeleton-head,
            .skeleton .skeleton-title,
            .skeleton .skeleton-content {
              background: rgb(194, 207, 214);
            }
             
            .skeleton-head {
              width: 100px;
              height: 100px;
              float: left;
            }
             
            .skeleton-body {
              margin-left: 110px;
            }
             
            .skeleton-title {
              width: 500px;
              height: 60px;
              transform-origin: left;
              animation: skeleton-stretch .5s linear infinite alternate;
            }
             
            .skeleton-content {
              width: 260px;
              height: 30px;
              margin-top: 10px;
              transform-origin: left;
              animation: skeleton-stretch .5s -.3s linear infinite alternate;
            }
             
            @keyframes skeleton-stretch {
              from {
                transform: scalex(1);
              }
              to {
                transform: scalex(.3);
              }
            }
    </style>
    
    <div id="app">
        <div class="skeleton">
            <div class="skeleton-head"></div>
            <div class="skeleton-body">
                <div class="skeleton-title"></div>
                <div class="skeleton-content"></div>
            </div>
        </div>
    </div>

启动项目即可看到效果