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uniapp使用v-loading并且不引入element-ui的操作方法

作者:zaijinyang

这篇文章主要介绍了uniapp使用v-loading并且不引入element-ui,首先创建loading.js,创建lloading.scss,本文结合示例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下

1、创建loading.js

import Vue from 'vue';
/**
 * 插入loading
 */
const insertDom = (el) => {
  let dom = `<div class="el-loading-mask">
        <div class="el-loading-spinner">
          <svg viewBox="25 25 50 50" class="circular">
            <circle cx="50" cy="50" r="20" fill="none" class="path"> </circle>
          </svg>
          <p class="el-loading-text">拼命加载中...</p>
        </div>
      </div>`;

  //el添加相对定位
  el.classList.add('el-loading-parent--relative');

  // 插入到被绑定的元素内部
  el.insertAdjacentHTML('afterbegin', dom);
};

/**
 * 移除loading
 */
const removeDom = (el) => {
  const ds = el.getElementsByClassName('el-loading-mask')[0];
  if (ds) {
    el.removeChild(ds);
    el.classList.remove('el-loading-parent--relative');
  }
};

// 更新是否显示
const toggleLoading = (el, binding) => {
  if (binding.value) {
    insertDom(el);
  } else {
    removeDom(el);
  }
};

Vue.directive('loading', {
  bind: function (el, binding, vnode) {
    toggleLoading(el, binding);
  },
  //所在组件的 VNode 更新时调用--比较更新前后的值
  update: function (el, binding) {
    if (binding.oldValue !== binding.value) {
      toggleLoading(el, binding);
    }
  }
});

2、创建lloading.scss

/deep/ .el-loading-parent--relative {
  position: relative !important;
}

/deep/ .el-loading-mask {
  position: absolute;
  z-index: 2000;
  background-color: rgba(0, 0, 0, 0.8);
  margin: 0;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  transition: opacity 0.3s;

  .el-loading-spinner {
    top: 50%;
    margin-top: -21px;
    width: 100%;
    text-align: center;
    position: absolute;
  }

  .el-loading-spinner .el-loading-text {
    color: #409eff;
    margin: 3px 0;
    font-size: 14px;
  }

  .el-loading-spinner .circular {
    height: 42px;
    width: 42px;
    animation: loading-rotate 2s linear infinite;
  }

  .el-loading-spinner .path {
    animation: loading-dash 1.5s ease-in-out infinite;
    stroke-dasharray: 90, 150;
    stroke-dashoffset: 0;
    stroke-width: 2;
    stroke: #409eff;
    stroke-linecap: round;
  }

  .el-loading-spinner i {
    color: #409eff;
  }

  .el-loading-fade-enter,
  .el-loading-fade-leave-active {
    opacity: 0;
  }

  @keyframes loading-rotate {
    to {
      transform: rotate(1turn);
    }
  }

  @keyframes loading-dash {
    0% {
      stroke-dasharray: 1, 200;
      stroke-dashoffset: 0;
    }

    50% {
      stroke-dasharray: 90, 150;
      stroke-dashoffset: -40px;
    }

    to {
      stroke-dasharray: 90, 150;
      stroke-dashoffset: -120px;
    }
  }
}

3、将scss引入通用样式(一般在uni.scss中引入)

@import '/static/css/loading.scss';

4、在main.js中引入loading.scss

// 使用v-loading
import Loading from '@/utils/loading.js'
Vue.use(Loading)

5、页面上使用

<view class="details-video" v-loading="loading"></view>

6、效果:

到此这篇关于uniapp使用v-loading并且不引入element-ui的文章就介绍到这了,更多相关uniapp使用v-loading内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家!

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