ionic3使用ion-multi-picker插件实现省市区三级联动的城市选择

首先安装ion-multi-picker插件

输入命令：npm install ion-multi-picker --save

在app.module.ts中引入插件

[code]import { MultiPickerModule } from 'ion-multi-picker';

@NgModule({
imports: [
…………
MultiPickerModule,
…………
],
})

在某个页面使用时引入ion-multi-picker

[code]import { NgModule } from '@angular/core';
import { IonicPageModule } from 'ionic-angular';
import { EceiingPage } from './eceiing';
import {MultiPickerModule} from 'ion-multi-picker';

@NgModule({
declarations: [
EceiingPage,
],
imports: [
MultiPickerModule,
IonicPageModule.forChild(EceiingPage),
],
})
export class EceiingPageModule {}

//EceiingPage页面中引入插件

在eceiing.html页面中调用插件

[code]<ion-multi-picker item-content [multiPickerColumns]="dependentColumns" [cancelText]="'取消'" [doneText]="'完成'"></ion-multi-picker>

 eceiing.ts中定义变量dependentColumns

[code]import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams,AlertController } from 'ionic-angular';
/**
* Generated class for the EceiingPage page.
*
* See https://ionicframework.com/docs/components/#navigation for more info on
* Ionic pages and navigation.
*/

@IonicPage()
@Component({
selector: 'page-eceiing',
templateUrl: 'eceiing.html',
})
export class EceiingPage {

public dependentColumns:any;
constructor(public navCtrl: NavController,
public navParams: NavParams,
public alertCtrl: AlertController,

){
this.dependentColumns=太长了，没有复制

ionViewDidEnter(){

}

}

省市区json的下载地址：https://raw.githubusercontent.com/raychenfj/ion-multi-picker/master/example/src/assets/chinese-cities.json

这样就可以实现三级联动城市的选择了