tooglee ionic 3

home.html

<ion-header>
  <ion-navbar>
    <ion-title>
      Ionic Blank
    </ion-title>
  </ion-navbar>
</ion-header>
<ion-content padding>
  <div padding style="text-align: center;">
    <h1>Ionic 2 Test</h1>
    <ion-toggle [(ngModel)]="toggleStatus" pulsado checked="false" (ionChange)="Change_Toggle(toggleStatus);"></ion-toggle>
    {{greeting}}
  </div>
</ion-content>

Ionic3Togglee.ts

import { Component, SimpleChange } from '@angular/core';
import { NavController,} from 'ionic-angular';

@Component({
  selector: 'page-home',
  templateUrl: 'home.html'
})
export class HomePage {
    greeting: string;
    toggleStatus:boolean;
  
  constructor(public navCtrl: NavController) {
    this.toggleStatus =true;
  }

	OnChanges(changes: {[propertyName: string]: SimpleChange}){
	  for (let propName in changes) {
	      if (propName ==='toggleStatus'){
          let chng = changes[propName];
          this.Change_Toggle(chng.currentValue);
        }
        
	  }
	}
	Change_Toggle(bval:any) {
       if (bval===true)
        this.greeting="toggle true"
      else
        this.greeting="toggle false"

	}

}