vue3 实现全屏 loading 加载动画_v-lodaing全屏加载-优快云博客

博客包含Loading.vue和index.js代码，结合标签推测与CSS动画相关，涉及CSS3技术，在前端开发中可用于实现动画效果。

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Loading.vue

<template>
  <div class="loading-wrap">
    <div v-if="mask" class="mask"></div>
    <div class="loading" v-cloak>
      <div class="load-cont">
        <div class="line"></div>
        <div class="line"></div>
        <div class="line"></div>
        <div class="line"></div>
        <div class="line"></div>
        <div class="line"></div>
      </div>
      <div class="text">{{ title || "加载中..." }}</div>
    </div>
  </div>
</template>

<script setup>
defineProps({
  title: {
    type: String
  },
  mask: {
    type: Boolean
  }
})
</script>
<style lang="less" scoped>
.loading-wrap {
  .mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 3001;
  }

  .loading {
    width: 250px;
    height: 250px;
    position: fixed;
    left: 50%;
    top: 30%;
    background-color: rgba(0, 0, 0, 0.7);
    transform: translateX(-100px);
    border-radius: 10px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    .load-cont {
      width: 60px;
      height: 60px;
      position: relative;

      .line {
        position: absolute;
        left: 50%;
        top: 0;
        width: 4px;
        height: 100%;
      }

      .line::before {
        position: absolute;
        top: 0;
        display: block;
        content: '';
        width: 4px;
        height: 15px;
        background-color: white;
        border-radius: 5px 5px 0 0;
      }

      .line::after {
        position: absolute;
        bottom: 0;
        display: block;
        content: '';
        width: 4px;
        height: 15px;
        background-color: white;
        border-radius: 0 0 5px 5px;
      }

      .line:nth-child(2) {
        transform: rotate(30deg);
      }

      .line:nth-child(3) {
        transform: rotate(60deg);
      }

      .line:nth-child(4) {
        transform: rotate(90deg);
      }

      .line:nth-child(5) {
        transform: rotate(120deg);
      }

      .line:nth-child(6) {
        transform: rotate(150deg);
      }

      .line:nth-child(1)::before {
        animation: loading 1.2s linear 0s infinite;
      }

      .line:nth-child(2)::before {
        animation: loading 1.2s linear 0.1s infinite;
      }

      .line:nth-child(3)::before {
        animation: loading 1.2s linear 0.2s infinite;
      }

      .line:nth-child(4)::before {
        animation: loading 1.2s linear 0.3s infinite;
      }

      .line:nth-child(5)::before {
        animation: loading 1.2s linear 0.4s infinite;
      }

      .line:nth-child(6)::before {
        animation: loading 1.2s linear 0.5s infinite;
      }

      .line:nth-child(1)::after {
        animation: loading 1.2s linear 0.6s infinite;
      }

      .line:nth-child(2)::after {
        animation: loading 1.2s linear 0.7s infinite;
      }

      .line:nth-child(3)::after {
        animation: loading 1.2s linear 0.8s infinite;
      }

      .line:nth-child(4)::after {
        animation: loading 1.2s linear 0.9s infinite;
      }

      .line:nth-child(5)::after {
        animation: loading 1.2s linear 1.0s infinite;
      }

      .line:nth-child(6)::after {
        animation: loading 1.2s linear 1.1s infinite;
      }

      @keyframes loading {
        from {
          opacity: 0;
        }

        to {
          opacity: 1;
        }
      }
    }

    .text {
      margin-top: 26px;
      font-size: 30px;
      color: #fff;
    }

  }

}
</style>

index.js

import { createApp } from 'vue'
import Loading from './Loading.vue'

export default {
  instance: null,
  parent: document.createElement('div'),
  showLoading ({ title = '', mask = false }) {
    if (this.instance !== null) this.clear()
    this.instance = createApp(Loading, { title, mask })
    document.body.appendChild(this.parent)
    this.instance.mount(this.parent)
  },
  hideLoading () {
    this.clear()
  },
  clear () {
    if (this.instance !== null) {
      this.instance.unmount(this.parent)
      document.body.removeChild(this.parent)
      this.instance = null
    }
  }, 
}
//调用
import utils from './index.js'
utils.showLoading({title:"loading",mask:true})