hi,
I use HighChart library in the Segment, my segment have 2 tab DASHBOARD and NEW, my Chart in the DASHBOARD tab. First run: My Chart run, but i click to New tab and come back DASHBOARD tab => My chart not run ?
[sorry, i’m not good english]
– My code html:
<div class="segment-chart">
<ion-segment [(ngModel)]="pet">
<ion-segment-button value="dashboard" (ionSelect)="selectedFriends()">
DASHBOARD
</ion-segment-button>
<ion-segment-button value="new">
NEW
</ion-segment-button>
</ion-segment>
</div>
<div [ngSwitch]="pet">
<div class="chart" *ngSwitchCase="'dashboard'">
<!--View Chart-->
<div #chart>
<chart type="StockChart" [options]="options"></chart>
</div>
</div>
<ul *ngSwitchCase="'new'" style="list-style-type:none" class="div-new-body">
<li class="div-new-li" *ngFor="let new of lsNews">
<div class="div-new-detail">
<div class="div-new-title">
{{new.date}}
</div>
<div class="div-new-content">
{{new.title}}
</div>
</div>
<div class="div-new-nav">></div>
</li>
</ul>
</div>
My code file ts:
export class ChartPage implements AfterViewInit, OnDestroy {
private _chart: any;
lastData: any
lstData: any = []
pet : any
lsNews : any = []
opts : any;
@ViewChild('chart') public chartEl: ElementRef;
//chartOption: any
// Destroy Chart
ngOnDestroy(): void {
// throw new Error("Method not implemented.");
console.log("OnDestroy run")
var chart = this._chart
chart.destroy();
}
// option Chart
ngAfterViewInit() {
if (this.chartEl && this.chartEl.nativeElement) {
this.opts.chart = {
// type: 'area',
renderTo: this.chartEl.nativeElement,
backgroundColor: {
linearGradient: [0, 0, 500, 500],
stops: [
[0, '#3d4d64'],
[1, '#3d4d64']
]
},
height: '90%',
spacingBottom: 15,
spacingTop: 10,
spacingLeft: 10,
spacingRight: 10,
};
console.log('chart create ss')
this._chart = new Highcharts.StockChart(this.opts);
}
}
constructor(public navCtrl: NavController, public navParams: NavParams, public service: Service) {
const me = this;
this.pet= 'dashboard';
setInterval(function () {
if (me._chart) {
me._chart['series'][0].addPoint([
(new Date()).getTime(), // gia tri truc x
//5// gia tri truc y
me.getData()
],
true,
true);
}
}, 3000);
this.opts = {
credits: {
enabled: false
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150,
labels: {
style: {
color: '#705f43' // color time
}
},
lineColor: '#705f43' // 2 line cuoi mau trang
},
yAxis: {
gridLineColor: '#705f43', //line gach ngang
labels: {
style: {
color: '#fff'
}
},
lineColor: '#ff0000',
minorGridLineColor: '#ff0000',
tickColor: '#fff',
tickWidth: 1,
title: {
style: {
color: '#ff0000'
}
}
},
navigator: {
enabled: false
},
rangeSelector: {
buttons: [{
count: 1,
type: 'minute',
text: '1M'
}, {
count: 5,
type: 'minute',
text: '5M'
}, {
type: 'all',
text: 'All'
}],
inputEnabled: false,
selected: 0,
},
series: [{
name: 'Random data',
data: (function () {
// generate an array of random data
var data = [],
time = (new Date()).getTime(),
i;
for (i = -50; i <= 0; i += 1) {
data.push([
time + i * 1000,
Math.round(Math.random() * 100)
]);
}
return data;
}()),
zones: [{
color: '#f8ad40'
}]
}]
};
//end contructor
}