Follow the below steps to create the example app:

1. Now, create a new MyiOSPush app using the blank template, as shown, and go to the MyiOSPush folder:

$ ionic start MyiOSPush blank
$ cd MyiOSPush

2. Install the Cordova plugin and Ionic Native wrapper for OneSignal:

$ ionic cordova plugin add onesignal-cordova-plugin$ npm install --save @ionic-native/onesignal

We need to add this ionic-native plugin to app.module.ts.

3. We also need to install cocoapods. Go to Terminal, and install it as follows:

sudo gem install cocoapodspod repo update

4. Open and edit ./src/app/app.module.ts with the following content:

import { BrowserModule } from '@angular/platform-browser';import { ErrorHandler, NgModule } from '@angular/core';import { IonicApp, ...