具體操作
-
下載 echarts-for-weixin 。
-
把其 ec-canvas 目錄移動(dòng)到 mpvue 項(xiàng)目的 static 目錄下。
-
對(duì) ec-canvas/ec-canvas.js 進(jìn)行小調(diào)整，考慮提 pr 到 ec-canvas。
修改 ready 為異步獲取數(shù)據(jù)。
ready: function () {
// 異步獲取
setTimeout(() => {
if (!this.data.ec) {
console.warn('組件需綁定 ec 變量，例：<ec-canvas id="mychart-dom-bar" '
+ 'canvas-id="mychart-bar" ec="{{ ec }}"></ec-canvas>');
return;
}
if (!this.data.ec.lazyLoad) {
this.init();
}
}, 10)
}
為 init 添加接收 options 傳參
var query = wx.createSelectorQuery().in(this);
query.select('.ec-canvas').boundingClientRect(res => {
if (typeof callback === 'function') {
this.chart = callback(canvas, res.width, res.height);
}
else if (this.data.ec && this.data.ec.onInit) {
this.chart = this.data.ec.onInit(canvas, res.width, res.height);
}
else if (this.data.ec && this.data.ec.options) {
// 添加接收 options 傳參
const ec = this.data.ec
function initChart(canvas, width, height) {
const chart = echarts.init(canvas, null, {
width: width,
height: height
});
canvas.setChart(chart);
chart.setOption(ec.options);
return chart;
}
this.chart = initChart(canvas, res.width, res.height);
}
}).exec();
-
創(chuàng)建
pages/bar 頁(yè)面，目錄如下：
.
└── pages
└── bar
├── index.vue
└── main.js
-
在 main.js 中引入微信小程序的自定義組件
import Vue from 'vue'
import App from './index'
const app = new Vue(App)
app.$mount()
// 添加 config json
export default {
config: {
// 這兒添加要用的小程序組件
usingComponents: {
'ec-canvas': '../../../static/ec-canvas/ec-canvas'
}
}
}
-
在 app.vue 中添加 options、template 等相關(guān)配置
<template>
<div>
<div class="container">
<ec-canvas class="canvas" id="mychart-dom-bar" canvas-id="mychart-bar" :ec="ec"></ec-canvas>
</div>
</div>
</template>
<script>
const options = {
// more code ...
}
export default {
data () {
return {
ec: {
// 傳 options
options: options,
}
}
}
}
</script>
<style>
ec-canvas {
width: 400px;
height: 400px;
}
</style>
Build Setup
# install dependencies
npm install
# serve with hot reload at localhost:8080
npm run dev
# build for production with minification
npm run build
# build for production and view the bundle analyzer report
npm run build --report
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