html页面
<button ion-button color="dark" class="button-block" (click)="showToast()">Toast提示</button>
ts文件
import { Component } from '@angular/core'; import { ToastController } from 'ionic-angular'; @Component({ selector: 'page-home', templateUrl: 'home.html' }) export class HomePage { constructor(public toastCtrl: ToastController) { } showToast(){ let toast = this.toastCtrl.create({ message: '用户名不能为空', duration: 3000 }); toast.present(); } }