VUE-ElementUI 自定义Loading图操作_JavaScript

需求：

element ui loading图只能使用自己的loading图，

但很多场景下，需要替换成自己的gif图

虽然文档中有些， element-loading-spinner="el-icon-loading" 可指定自定义图

但经测试，也只是只能再elementui 图标库中的图，不是我们想的那个自定义图类的意思。

自定义图方法：

1）添加自定义elementUI loading样式

VUE-ElementUI 自定义Loading图操作

asserts下新建CSS文件夹及CSS文件比如myCss.css

再里面，写入自定义的element类CSS样式

.el-loading-spinner{
  /*这个是自己想设置的 gif 加载动图*/
  background-image:url("../img/loading.gif");
  background-repeat: no-repeat;
  background-size: 200px 120px;
  height:100px;
  width:100%;
  background-position:center;
  /*覆盖 element-ui 默认的 50% 因为此处设置了height:100%,所以不设置的话，会只显示一半，因为被top顶下去了*/
  top:40%;
 }
.el-loading-spinner .circular {
 /*隐藏 之前 element-ui 默认的 loading 动画*/
 
 display: none; 
} 
.el-loading-spinner .el-loading-text{
 /*为了使得文字在loading图下面*/
 margin:85px 0px; 
}

CSS 细调，需要在浏览器调试工具中细调

VUE-ElementUI 自定义Loading图操作

2）main.js 导入自定义样式

这里注意，要在导入elementUI之后，再导入自己的样式，要不然会被elementUI覆盖

import ElementUI from "element-ui";
import "element-ui/lib/theme-chalk/index.css";
Vue.use(ElementUI); //element 
 
//自定义的element UI loading样式
import "./assets/css/myCss.css"

3) v-loading

 <el-container
   v-loading="loading"
   element-loading-background="rgba(255, 255,255, 0.5)"
   element-loading-text="加载中..." 
 >

注意，这里不要加上element-loading-spinner="el-icon-loading" ，否则也会同时出现element图库中对应的loading图

4）对应加载逻辑

 data () {
 return { 
  loading: true 
 }
 }, 
 startLoading()
 { 
  this.loading=true; 
 },
 
 endLoading(){
   this.loading=false;
  },

axios请求接口时，开始loading,收到数据后，loading结束

  Ajx_GetClassList()
  {
   this.startLoading(); 
    this.$axios(
    {
     url: url,
     method:"POST",
    }
   ).then(res=>{
 
     this.endLoading();
 
    }) 
  },

5) 运行时，是正常显示，但编译后，看不到自定义的图片资源了

原因，VUE项目打包后，样式目录结构变为static/css

解决

build->utils.js 配置文件添加

publicPath: "../../"

 // Extract CSS when that option is specified
 // (which is the case during production build)
 if (options.extract) {
  return ExtractTextPlugin.extract({
  use: loaders,
  publicPath:"../../", // 解决element-ui中组件图标不显示问题
  fallback: "vue-style-loader"
  })

这样，编译后的element-ui资源也可以正常访问了

VUE-ElementUI 自定义Loading图操作

自定义loading图效果

VUE-ElementUI 自定义Loading图操作

补充知识：vue+elementUI自定义通用table组件

自定义通用table组件,带分页,后端排序,路由带参数跳转,多选框,字段格式化

1.tableList组件

<!-- 费用报销编辑弹框 -->
<template>
  <div class="table-temp">
    <el-table
      :data="tableData"
      border
      size="mini"
      fit
      highlight-current-row
      height="500"
      v-loading="loading"
      @selection-change="handleSelectionChange"
      @sort-change="sortChange"
    >
      <el-table-column type="selection" width="55" align="center"></el-table-column>
      <el-table-column type="index" label="序号" align="center" fixed></el-table-column>
      <!-- prop: 字段名name, label: 展示的名称, fixed: 是否需要固定(left, right), minWidth: 设置列的最小宽度(不传默认值), active: 是否有操作列
      active.name: 操作列字段名称, active.clickFun: 操作列点击事件, formatData: 格式化内容-->
      <el-table-column
        v-for="(item, key) in tableHeader"
        :key="key"
        :prop="item.prop"
        :label="item.label"
        :fixed="item.fixed"
        :min-widitem="item.minWidth"
        align="center"
        :sortable="item.sortable"
      >
        <template slot-scope="scope">
          <div v-if="item.active">
            <el-button
              v-for="(o, key) in item.active"
              :key="key"
              @click="handleActive(scope.row, o.router, o.routerId)"
              type="text"
              size="small"
            >{{o.name}}</el-button>
          </div>
          <div v-else>
            <a class="btn-a"
              v-if="item.router"
              @click="handleActive(scope.row,item.router, item.routerId)"
            >
              <span v-if="!item.formatData">{{ scope.row[item.prop] }}</span>
              <span v-else>{{ scope.row[item.prop] | formatters(item.formatData) }}</span>
            </a>
            <div v-else>
              <span v-if="!item.formatData">{{ scope.row[item.prop] }}</span>
              <span v-else>{{ scope.row[item.prop] | formatters(item.formatData) }}</span>
            </div>
          </div>
        </template>
      </el-table-column>
    </el-table>
    <div class="pagination">
      <el-pagination
        background
        layout="total, prev, pager, next"
        :current-page="pagination.pageIndex"
        :page-size="pagination.pageSize"
        :total="pagination.pageTotal"
        @current-change="handlePageChange"
      ></el-pagination>
    </div>
  </div>
</template>
<script>
var _ = require("lodash");
export default {
  props: {
    tableData: {
      type: Array,
      default: function() {
        return [];
      }
    },
    tableHeader: {
      type: Array,
      default: function() {
        return [];
      }
    },
    loading: {
      type: Boolean,
      default: false
    },
    pagination: {
      type: Object,
      default: {
        pageIndex: 0,
        pageSize: 15,
        pageTotal: 0
      }
    }
  },
  data() {
    return {
      multipleSelection: [],
      newPagination: {
        pageIndex: 0,
        pageSize: 15,
        pageTotal: 0
      }
    };
  },
  methods: {
    // 多选操作
    handleSelectionChange(val) {
      this.multipleSelection = val;
      this.$emit("selectFun", { backData: this.multipleSelection });
    },
    // 分页导航
    handlePageChange(val) {
      console.log("handlePageChange:", val);
      this.$set(this.pagination, "pageIndex", val);
      //调用父组件方法
      this.$emit("pageChange", { backData: this.pagination});
    },
    // row:本行数据，route：要跳转的路由路径，跳转要传的参数routeId
    handleActive(row, route, routeId) {
      console.log(row);
      this.$router.push({
        path: "/" + route,
        query: {
          id: row[routeId]
        }
      });
    },
    //后端排序
    sortChange(column) {
      //console.log("sortChange:", column);
      //调用父组件方法
      this.$emit("sortChange", { backData: column });
    }
  },
  watch: {
    
    }
  },
  computed: {
  },
  created() {
  }
};
</script>
<style scoped>
.btn-a{
  color: #409EFF
}
</style>

2.组件使用

<template>
  <div>
<!-- 表格 -->
      <table-List
        :tableData="tableData"
        :tableHeader="tableHeader"
        :loading="loading"
        :pagination="pagination"
        @pageChange="pageChange"
        @selectFun="selectFun"
        @sortChange="sortChange"
      ></table-List>
  </div>
</template>
<script>
import appMain from "../../../utils/app_main";
export default {
  data() {
    return {
//    请求加载
      loading: false,
      // 分页信息
      pagination: {
        pageIndex: 1,
        pageSize: 10,
        pageTotal: 60
      },
      tableHeader: [
        // 表头数据
        { prop: "id", label: "离职编号", minWidth: "100px", router: "quitDetail", routerId: "id", sortable: "custom" },
        {
          prop: "resignationUserName",
          label: "姓名",
          router: "employeeDetail",
          routerId: "resignationUserId",
          sortable: "custom"
        },
        { prop: "departName", label: "部门", minWidth: "100px", sortable: "custom" },
        { prop: "jobRole", label: "所在岗位", sortable: "custom" },
        {
          prop: "onbordingTime",
          label: "入职日期",
          formatData: function(val) {
            let date = new Date(val);
            return appMain.formatDate(date, "yyyy-MM-dd");
          },
          sortable: "custom"
        },
        {
          prop: "resignationTime",
          label: "离职日期",
          formatData: function(val) {
            let date = new Date(val);
            return appMain.formatDate(date, "yyyy-MM-dd");
          },
          minWidth: "100px",
          sortable: "custom"
        },
        { prop: "resignationReason", label: "离职原因", minWidth: "100px", sortable: "custom" },
        { prop: "status", label: "流程状态", minWidth: "100px", sortable: "custom" }
      ],
      tableData: [],
      multipleSelection: [],
    };
  },
 
  methods: {
    // 组件选择完后把数据传过来
    selectFun(data) {
      this.multipleSelection = data.backData;
    },
    //表格组件返回排序对象
    sortChange(data) {
      let column = data.backData;
      //排序
      if (column.order) {
        //倒序
        if (column.order === "descending") {
          // this.query.sortColumn = column.prop + " " + "desc";
        } else {
          // this.query.sortColumn = column.prop;
        }
      } else {
        //不排序
        // this.query.sortColumn = "";
      }
      //请求接口
    },
   
    //分页导航
    pageChange(data) {
      this.pagination = data.backData;
      console.log("pageChange:", this.pagination);
      //分页变化--请求接口
    },  
  }
};
</script>

3.appMain.js

 class appMain {
 
  }
// 时间格式化
  formatDate(date, fmt) {
    var date = new Date(date)
    if (/(y+)/.test(fmt)) {
      fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
    }
    let o = {
      "M+": date.getMonth() + 1,
      "d+": date.getDate(),
      "h+": date.getHours(),
      "m+": date.getMinutes(),
      "s+": date.getSeconds()
    };
    for (let k in o) {
      if (new RegExp(`(${k})`).test(fmt)) {
        let str = o[k] + "";
        fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ? str : this.padLeftZero(str));
      }
    }
    return fmt;
  };
  padLeftZero(str) {
    return ("00" + str).substr(str.length);
  }
export default new appMain()

以上这篇VUE-ElementUI 自定义Loading图操作就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。

原文链接：https://gudianxiaoshuo.blog.csdn.net/article/details/109047719