要求要求选项卡每切换一次，就加载对应的一个echarts 图，要有一开始的动画效果
效果如下：注意点1、echarts要想每次都能重新加载，需要移除"_echarts_instance_"属性，否则一切换选项卡，就再也加载不出来了
2、在ts 中获取html 页面元素，不能写在构造方法里，应该写在ionViewDidEnter()方法里
3、选项卡 不要搭配[ngSwitch] 的方式，因为这种情况下，只能获取当前选项卡中的元素，未选中的选项卡里的元素获取不到，在第2步骤ionViewDidEnter() 方法里自然也是获取不到。应当搭配(ionChange)使用方式
4、不能直接将chart作为全局变量，这样的话第二次加载就没有动画效果了献上代码html文件



区域











省份增速排名





市州增速排名





全省走势





市州占比

区域











省份增速排名





市州增速排名





全省走势





市州占比

ts文件
import {Component} from '@angular/core';
import * as echarts from 'echarts';

@Component({
selector: 'page-data-area',
templateUrl: 'area.html'
})
export class DataAreaPage {
choice: string = "choice1";
ec: any = echarts;
chartContainer: any;

constructor() {
}

clickChart1() {

const chart1 = this.ec.init(this.chartContainer);

chart1.setOption({

series: {

type: 'pie',

data: [{

name: 'A',

value: 10

}, {

name: 'B',

value: 20

}, {

name: 'C',

value: 30

}, {

name: 'D',

value: 40

}]

}

}, true);

this.chartContainer.removeAttribute("_echarts_instance_");
}

clickChart2() {

const chart2 = this.ec.init(this.chartContainer);

chart2.setOption({

series: {

type: 'pie',

data: [{

name: 'A',

value: 10

}, {

name: 'B',

value: 20

}, {

name: 'C',

value: 30

}]

}

}, true);

this.chartContainer.removeAttribute("_echarts_instance_");
}

clickChart3() {

const chart3 = this.ec.init(this.chartContainer);

chart3.setOption({

series: {

type: 'pie',

data: [{

name: 'A',

value: 10

}, {

name: 'B',

value: 20

}, {

name: 'C',

value: 30

}, {

name: 'D',

value: 40

}, {

name: 'E',

value: 50

}]

}

}, true);

this.chartContainer.removeAttribute("_echarts_instance_");
}

clickChart4() {

const chart4 = this.ec.init(this.chartContainer);

chart4.setOption({

series: {

type: 'pie',

data: [{

name: 'A',

value: 10

}, {

name: 'B',

value: 20

}, {

name: 'C',

value: 30

}, {

name: 'D',

value: 40

}, {

name: 'E',

value: 50

}, {

name: 'F',

value: 60

}]

}

}, true);

this.chartContainer.removeAttribute("_echarts_instance_");
}

segmentChanged(e) {

if (e.value == "choice1") {

this.clickChart1();

} else if (e.value == "choice2") {

this.clickChart2();

} else if (e.value == "choice3") {

this.clickChart3();

} else if (e.value == "choice4") {

this.clickChart4();

}
}

ionViewDidEnter() {

this.chartContainer = document.getElementById('chartContainer');

this.clickChart1();
}

}
import {Component} from '@angular/core';
import * as echarts from 'echarts';

@Component({
selector: 'page-data-area',
templateUrl: 'area.html'
})
export class DataAreaPage {
choice: string = "choice1";
ec: any = echarts;
chartContainer: any;

constructor() {
}

clickChart1() {

const chart1 = this.ec.init(this.chartContainer);

chart1.setOption({

series: {

type: 'pie',

data: [{

name: 'A',

value: 10

}, {

name: 'B',

value: 20

}, {

name: 'C',

value: 30

}, {

name: 'D',

value: 40

}]

}

}, true);

this.chartContainer.removeAttribute("_echarts_instance_");
}

clickChart2() {

const chart2 = this.ec.init(this.chartContainer);

chart2.setOption({

series: {

type: 'pie',

data: [{

name: 'A',

value: 10

}, {

name: 'B',

value: 20

}, {

name: 'C',

value: 30

}]

}

}, true);

this.chartContainer.removeAttribute("_echarts_instance_");
}

clickChart3() {

const chart3 = this.ec.init(this.chartContainer);

chart3.setOption({

series: {

type: 'pie',

data: [{

name: 'A',

value: 10

}, {

name: 'B',

value: 20

}, {

name: 'C',

value: 30

}, {

name: 'D',

value: 40

}, {

name: 'E',

value: 50

}]

}

}, true);

this.chartContainer.removeAttribute("_echarts_instance_");
}

clickChart4() {

const chart4 = this.ec.init(this.chartContainer);

chart4.setOption({

series: {

type: 'pie',

data: [{

name: 'A',

value: 10

}, {

name: 'B',

value: 20

}, {

name: 'C',

value: 30

}, {

name: 'D',

value: 40

}, {

name: 'E',

value: 50

}, {

name: 'F',

value: 60

}]

}

}, true);

this.chartContainer.removeAttribute("_echarts_instance_");
}

segmentChanged(e) {

if (e.value == "choice1") {

this.clickChart1();

} else if (e.value == "choice2") {

this.clickChart2();

} else if (e.value == "choice3") {

this.clickChart3();

} else if (e.value == "choice4") {

this.clickChart4();

}
}

ionViewDidEnter() {

this.chartContainer = document.getElementById('chartContainer');

this.clickChart1();
}

}以上就是本文的全部内容，希望对大家的学习有所帮助。