VUE 单页面使用 echart 窗口变化时的用法

resizeFu(){
 let div = document.getElementById('changeData');
 if(div && this.changeData.DataTime.length>0){
 this.chartsDiv.changeData.resize();
 }
}

beforeRouteLeave(to, from, next) {
 //页面走掉把事件给清除掉
 window.removeEventListener("resize", this.resizeFu,false);
 next()
},

window.onresize = function () {
    this.myChart.resize();
};

chartData: {
    title: {
     text: '3-1(2)',
     textStyle: {
      color: '#979797',
      fontSize: 14
     }
    },
    tooltip: {
     trigger: 'axis'
    },
    legend: {
     icon: 'rect',
     itemWidth: 4, // 图例标记的图形宽度
     itemHeight: 11,
     textStyle: {
      lineHeight: 65,
      fontSize: 14
     },
     data: ['邮件营销', '联盟广告', '视频广告', '直接访问', '搜索引擎']
    },
    grid: {
     left: '3%',
     right: '4%',
     bottom: '3%',
     containLabel: true
    },
    xAxis: {
     type: 'category',
     boundaryGap: false,
     data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日']
    },
    yAxis: {
     type: 'value'
    },
    series: [
     {
      name: '邮件营销',
      type: 'line',
      stack: '总量',
      data: [0, 132, 101, 134, 90, 230, 210]
     },
     {
      name: '联盟广告',
      type: 'line',
      stack: '总量',
      data: [220, 12, 191, 234, 20, 330, 10]
     },
     {
      name: '视频广告',
      type: 'line',
      stack: '总量',
      data: [15, 232, 201, 154, 190, 330, 110]
     },
     {
      name: '直接访问',
      type: 'line',
      stack: '总量',
      data: [320, 420, 301, 334, 60, 330, 320]
     },
     {
      name: '搜索引擎',
      type: 'line',
      stack: '总量',
      data: [820, 932, 901, 934, 1290, 1330, 1320]
     }
    ]
 }

<template>
 <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from 'echarts'
import resize from './mixins/resize'

export default {
 mixins: [resize],
 props: {
  className: {
   type: String,
   default: 'chart'
  },
  width: {
   type: String,
   default: '100%'
  },
  height: {
   type: String,
   default: '300px'
  },
  autoResize: {
   type: Boolean,
   default: true
  },
  chartData: {
   type: Object,
   required: true
  }
 },
 data() {
  return {
   chart: null
  }
 },
 watch: {
  chartData: {
   deep: true,
   handler(val) {
    this.setOptions(val)
   }
  }
 },
 mounted() {
  this.$nextTick(() => {
   this.initChart()
  })
 },
 beforeDestroy() {
  if (!this.chart) {
   return
  }
  this.chart.dispose()
  this.chart = null
 },
 methods: {
  initChart() {
   this.chart = echarts.init(this.$el, 'macarons')
   this.setOptions(this.chartData)
  },
  setOptions(chartData) {
   this.chart.setOption(chartData)
  }
 }
}
</script>

import { debounce } from './debounce'

export default {
 data() {
  return {
   $_sidebarElm: null
  }
 },
 mounted() {
  this.$_initResizeEvent()
  this.$_initSidebarResizeEvent()
 },
 beforeDestroy() {
  this.$_destroyResizeEvent()
  this.$_destroySidebarResizeEvent()
 },
 // to fixed bug when cached by keep-alive
 // https://github.com/PanJiaChen/vue-element-admin/issues/2116
 activated() {
  this.$_initResizeEvent()
  this.$_initSidebarResizeEvent()
 },
 deactivated() {
  this.$_destroyResizeEvent()
  this.$_destroySidebarResizeEvent()
 },
 methods: {
  // use $_ for mixins properties
  // https://vuejs.org/v2/style-guide/index.html#Private-property-names-essential
  $_resizeHandler() {
   return debounce(() => {
    if (this.chart) {
     this.chart.resize()
    }
   }, 100)()
  },
  $_initResizeEvent() {
   window.addEventListener('resize', this.$_resizeHandler)
  },
  $_destroyResizeEvent() {
   window.removeEventListener('resize', this.$_resizeHandler)
  },
  $_sidebarResizeHandler(e) {
   if (e.propertyName === 'width') {
    this.$_resizeHandler()
   }
  },
  $_initSidebarResizeEvent() {
   this.$_sidebarElm = document.getElementsByClassName('sidebar-container')[0]
   this.$_sidebarElm && this.$_sidebarElm.addEventListener('transitionend', this.$_sidebarResizeHandler)
  },
  $_destroySidebarResizeEvent() {
   this.$_sidebarElm && this.$_sidebarElm.removeEventListener('transitionend', this.$_sidebarResizeHandler)
  }
 }
}

/**
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce(func, wait, immediate) {
 let timeout, args, context, timestamp, result

 const later = function() {
  // 据上一次触发时间间隔
  const last = +new Date() - timestamp

  // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
  if (last < wait && last > 0) {
   timeout = setTimeout(later, wait - last)
  } else {
   timeout = null
   // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
   if (!immediate) {
    result = func.apply(context, args)
    if (!timeout) context = args = null
   }
  }
 }

 return function(...args) {
  context = this
  timestamp = +new Date()
  const callNow = immediate && !timeout
  // 如果延时不存在，重新设定延时
  if (!timeout) timeout = setTimeout(later, wait)
  if (callNow) {
   result = func.apply(context, args)
   context = args = null
  }

  return result
 }
}