element后台系统点击menu左侧菜单收缩,支持窗口大小改变echarts图自适应
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2022-06-20
09:40:50
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先安装 element-resize-detector：
npm i element-resize-detector --save
1. 在文件 uls 下新建公共方法 resize.js
import echarts from "echarts";
import Vue from "vue";
import elementResizeDetectorMaker from "element-resize-detector";
export var version = "0.0.1";
var compatible = /^2\./.test(Vue.version);
if (!compatible) {
Vue.util.warn(
"vue echarts resize directive " +
version +
" only supports Vue 2.x, and does not support Vue " +
Vue.version
);
}
let HANDLER = "_vue_echarts_resize_handler";
function bind(el) {
unbind(el);
el[HANDLER] = function() {
let chart = echarts.getInstanceByDom(el);
if (!chart) {
return;
}
chart.resize();
};
//监听 window 窗体变化，更新 echarts 大小
//window.addEventListener("resize", el[HANDLER])
//监听绑定的 div 大小变化，更新 echarts 大小
elementResizeDetectorMaker().listenTo(el, el[HANDLER]);
}
function unbind(el) {
//window.removeEventListener("resize", el[HANDLER]);
elementResizeDetectorMaker().removeListener(el, el[HANDLER]);
delete el[HANDLER];
}
var directive = {
bind: bind,
unbind: unbind
};
Vue.directive("on-echart-resize", directive);
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