Ionic local notification not working on android

Ionic Native
1

app.module.ts

import { NgModule, ErrorHandler } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { IonicApp, IonicModule, IonicErrorHandler } from 'ionic-angular';
import { MyApp } from './app.component';

import { AboutPage } from '../pages/about/about';
import { ContactPage } from '../pages/contact/contact';
import { HomePage } from '../pages/home/home';
import { TabsPage } from '../pages/tabs/tabs';

import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';

import { LocalNotifications } from '@ionic-native/local-notifications';

@NgModule({
  declarations: [
    MyApp,
    AboutPage,
    ContactPage,
    HomePage,
    TabsPage
  ],
  imports: [
    BrowserModule,
    IonicModule.forRoot(MyApp)
  ],
  bootstrap: [IonicApp],
  entryComponents: [
    MyApp,
    AboutPage,
    ContactPage,
    HomePage,
    TabsPage
  ],
  providers: [
    StatusBar,
    SplashScreen,
    LocalNotifications,
    {provide: ErrorHandler, useClass: IonicErrorHandler}
  ]
})
export class AppModule {}

home.html

<ion-header>
  <ion-navbar>
    <ion-title>Home</ion-title>
  </ion-navbar>
</ion-header>

<ion-content padding>
  <button ion-button (click)="notify()">Test</button>
</ion-content>

home.ts

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

import { LocalNotifications } from '@ionic-native/local-notifications';

@Component({
  selector: 'page-home',
  templateUrl: 'home.html'
})
export class HomePage {

  constructor(public navCtrl: NavController, private localNotifications: LocalNotifications, private plt: Platform, public alertCtrl: AlertController) {

  	this.plt.ready().then((readySource) => {
  		
	    this.localNotifications.on('click', (notification, state) => {
	      let json = JSON.parse(notification.data);
	 
	      let alert = alertCtrl.create({
	        title: notification.title,
	        subTitle: json.mydata
	      });
	      alert.present();
	    });

	  });

  }


  notify() {
  	console.log('test');
  	this.localNotifications.schedule({
	    id: 1,
	    title: 'Attention',
	    text: 'Simons Notification',
	    data: { mydata: 'My hidden message this is' },
	    at: new Date(new Date().getTime() + 5 * 1000)
	});

  }

}