这里是在ionic2下使用highchairs和chart.js的简单示例
chartjs部分参考http://www.jianshu.com/p/bc18132da812
1.安装hightcharts
npm install highcharts --save typings install dt~highcharts --global --save
2.编辑
html文件
在html中添加一个div来显示图表
<ion-content class="about"> <!--chart.js--> <canvas id="myChart" width="400" height="400"></canvas> <!--highchart--> <div #chart></div></ion-content>
ts文件
import {Component,ElementRef,AfterViewInit,OnDestroy,ViewChild} from '@angular/core';import {NavController} from 'ionic-angular';import * as CHartJs from 'chart.js'; //charts图表import * as Highcharts from 'highcharts' //highcharts图表@Component({ templateUrl: 'build/pages/plus/plus.html', }) export class PlusPage implements AfterViewInit, OnDestroy{ constructor(private navCtrl:NavController){} @ViewChild('chart') public chartEl: ElementRef; //highcharts private _chart: any; //highcharts //highcharts public ngAfterViewInit() { let opts: any = { title: { text: 'Monthly Average Temperature', x: -20 }, xAxis: { categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] }, series: [{ name: 'Tokyo', data: [ 7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6 ] }, { name: 'Tokyo1', data: [ 5.0, 6.9, 1.5, 14.5, 18.2, 21.5, 25.2, 26.5, 11.3, 25.3, 127.9, 10.6 ] } ] }; if (this.chartEl && this.chartEl.nativeElement) { opts.chart = { type: 'line', renderTo: this.chartEl.nativeElement }; this._chart = new Highcharts.Chart(opts); } } public ngOnDestroy() { this._chart.destroy(); } //chart.js ionViewDidEnter(){ var canvas = <HTMLCanvasElement> document.getElementById("myChart"); var ctx = canvas.getContext('2d'); CHartJs.Line(ctx,{ data:{ labels:["red","blue","yellow",'green',"purple","orange"], datasets:[{ label:"# of Vote", data:[12,19,3,5,2,3], backgroundColor:[ 'rgba(255, 99, 132, 0.2)', 'rgba(54, 162, 235, 0.2)', 'rgba(255, 206, 86, 0.2)', 'rgba(75, 192, 192, 0.2)', 'rgba(153, 102, 255, 0.2)', 'rgba(255, 159, 64, 0.2)' ], borderColor:[ 'rgba(255,99,132,1)', 'rgba(54, 162, 235, 1)', 'rgba(255, 206, 86, 1)', 'rgba(75, 192, 192, 1)', 'rgba(153, 102, 255, 1)', 'rgba(255, 159, 64, 1)' ], borderWidth:1 }] }, options:{ scales:{ yAxes:[{ ticks:{beginAtZero:true} }] } } }); } }
3.效果图
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作者:Nico_zhang
链接:https://www.jianshu.com/p/e187c27e257e
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