目录
效果图如下，代码见下方
代码可以直接复制，图片和css也要复制
tsx代码
css代码
代码里用到的图片，可以换成自己项目的图
效果图如下，代码见下方
代码可以直接复制，图片和css也要复制
tsx代码
import React, { useEffect, useRef, useState } from "react";
import styles from "./index.module.less";
import listItemImg from "@/assets/images/biz/list-item-bg.png";
import barTopImg from "@/assets/images/biz/bar-top.png";
import * as echarts from "echarts";
const dataZoomDefaultShowNum = 5; // 默认显示的数据条数
const DataContent: React.FC<any> = (props) => {
const chartDom: any = useRef(null);
const chartResizeTimer: any = useRef(null);
const chart: any = useRef(null);
const scrollTimer: any = useRef(null);
const [echartsOptions, setEchartsOptions] = useState<any>();
const [data] = useState<any[]>([
{
name: "扬州市",
num: "100",
target: "500",
},
{
name: "常州市",
num: "200",
target: "300",
},
{
name: "南京市",
num: "150",
target: "300",
},
{
name: "苏州市",
num: "80",
target: "100",
},
{
name: "无锡市",
num: "90",
target: "150",
},
{
name: "盐城",
num: "110",
target: "150",
},
{
name: "淮安",
num: "120",
target: "150",
},
{
name: "宿迁",
num: "130",
target: "150",
},
]);
useEffect(() => {
if (!chartDom || !data || !data.length) {
return;
}
if (!chart.current) {
chart.current = echarts.init(chartDom.current as HTMLElement);
}
const fun = () => {
// 绘制图表
const barWidth = Math.floor(
(8 * document.documentElement.clientWidth) / 1920
);
const symbolHeight = Math.floor(
(14 * document.documentElement.clientWidth) / 1920
);
const axisFontSize = Math.floor(
(16 * document.documentElement.clientWidth) / 1920
);
const axisY2FontSize = Math.floor(
(20 * document.documentElement.clientWidth) / 1920
);
const axisY2UnitFontSize = Math.floor(
(12 * document.documentElement.clientWidth) / 1920
);
const axisYImageSize = Math.floor(
(16 * document.documentElement.clientWidth) / 1920
);
let yData: any[] = [];
let sData: any[] = [];
let dataDict: any = {};
data.forEach((item) => {
let currentPercent =
Number(((Number(item.num) / Number(item.target)) * 100).toFixed(0)) >
100
? 100
: Number(
((Number(item.num) / Number(item.target)) * 100).toFixed(0)
);
dataDict[item.name] = { ...item, progress: currentPercent };
yData.push(item.name);
sData.push(currentPercent);
});
const echartsOption = {
grid: {
top: 0,
left: 0,
right: 0,
bottom: 0,
containLabel: true,
},
xAxis: {
axisLabel: {
show: false,
},
splitLine: {
show: false,
},
max: 100,
},
yAxis: [
{
type: "category",
axisLabel: {
textStyle: {
rich: {
image: {
backgroundColor: {
image: listItemImg,
width: axisYImageSize,
height: axisYImageSize,
},
},
name: {
color: "#C9EEFF",
fontSize: axisFontSize,
},
},
},
formatter: function (v: any) {
return `{image|}{name|${v}}`;
},
},
axisLine: {
show: false,
},
axisTick: {
show: false,
},
data: yData,
},
{
axisTick: "none",
axisLine: "none",
show: true,
axisLabel: {
inside: false,
textStyle: {
rich: {
value: {
color: "#C9EEFF",
fontSize: axisY2FontSize,
fontFamily: "DinBold",
},
unit: {
color: "#7883A7",
fontSize: axisY2UnitFontSize,
},
},
},
formatter: function (v: any) {
return `{value|${v}}{unit|%}`;
},
},
data: sData,
},
],
series: [
{
type: "bar",
barWidth,
showBackground: true,
itemStyle: {
color: new echarts.graphic.LinearGradient(0, 0, 1, 1, [
{ offset: 0, color: "#2D3A5C" },
{ offset: 0.78, color: "#2C86F0" },
{ offset: 1, color: "#DDECFD" },
]),
},
data: sData,
},
{
name: "XXX",
type: "pictorialBar",
symbol: barTopImg,
symbolSize: [2, symbolHeight],
symbolOffset: [1, 0],
itemStyle: {
normal: {
color: "#B8DAFF",
},
},
symbolPosition: "end",
data: sData,
},
],
dataZoom: [
{
yAxisIndex: 0,
show: false,
startValue: data.length - 1 - dataZoomDefaultShowNum,
endValue: data.length - 2,
},
{
yAxisIndex: 1,
show: false,
startValue: data.length - 1 - dataZoomDefaultShowNum,
endValue: data.length - 2,
},
],
};
chart && chart.current && chart.current.setOption(echartsOption);
chart && chart.current && chart.current.resize();
setEchartsOptions(echartsOption);
};
fun();
window.addEventListener("resize", () => {
if (chartResizeTimer && chartResizeTimer.current) {
clearTimeout(chartResizeTimer.current);
chartResizeTimer.current = null;
}
chartResizeTimer.current = setTimeout(() => {
fun();
clearTimeout(chartResizeTimer.current);
chartResizeTimer.current = null;
}, 100);
});
return () => {
chart && chart.current && chart.current.clear();
chart && chart.current && (chart.current = null);
};
}, [data]);
// y轴自动滚动
useEffect(() => {
if (
!echartsOptions ||
!data ||
!data.length ||
data.length < dataZoomDefaultShowNum
) {
return;
}
const setScrollTimer = () => {
scrollTimer.current = setInterval(() => {
if (echartsOptions.dataZoom[0].startValue < 1) {
echartsOptions.dataZoom[0].startValue =
data.length - 1 - dataZoomDefaultShowNum;
echartsOptions.dataZoom[0].endValue = data.length - 2;
echartsOptions.dataZoom[1].startValue =
data.length - 1 - dataZoomDefaultShowNum;
echartsOptions.dataZoom[1].endValue = data.length - 2;
} else {
echartsOptions.dataZoom[0].startValue =
echartsOptions.dataZoom[0].startValue - 1;
echartsOptions.dataZoom[0].endValue =
echartsOptions.dataZoom[0].endValue - 1;
echartsOptions.dataZoom[1].startValue =
echartsOptions.dataZoom[1].startValue - 1;
echartsOptions.dataZoom[1].endValue =
echartsOptions.dataZoom[1].endValue - 1;
}
chart && chart.current && chart.current.setOption(echartsOptions, true);
}, 1500);
};
const clearScrollTimer = () => {
if (scrollTimer && scrollTimer.current) {
clearInterval(scrollTimer.current);
scrollTimer.current = null;
}
};
setScrollTimer();
const mouseOverFun = () => {
clearScrollTimer();
};
const mouseOutFun = () => {
setScrollTimer();
};
if (chartDom && chartDom.current) {
chartDom.current.addEventListener("mouseover", mouseOverFun);
chartDom.current.addEventListener("mouseout", mouseOutFun);
}
return () => {
if (scrollTimer && scrollTimer.current) {
clearInterval(scrollTimer.current);
scrollTimer.current = null;
}
if (chartDom && chartDom.current) {
chartDom.current.removeEventListener("mouseover", mouseOverFun);
chartDom.current.removeEventListener("mouseout", mouseOutFun);
}
};
}, [data, echartsOptions]);
return (
<div className={styles.content}>
<div ref={chartDom} className={styles.chart} />
</div>
);
};
export default DataContent;css代码
.content {
width: 430px;
height: 240px;
.chart {
height: 100%;
width: 100%;
}
}代码里用到的图片，可以换成自己项目的图
listItemImg
barTopImg
