Show Popover without click


How do you show a popover pointing at a button on page load (without having the user click anything)? Like this:

Here’s my current HTML and TS


<ion-content padding>
  <button ion-button (click)="showPopover($event)">Show Popover</button>


import { Component, ViewChild } from '@angular/core';
import { NavController, PopoverController } from 'ionic-angular';
import { RangeExtendPopoverPage } from "../range-extend-popover/range-extend-popover";

  selector: 'page-home',
  templateUrl: 'home.html'
export class HomePage {
  constructor(public navCtrl: NavController, private popoverCtrl: PopoverController) {}
  showPopover(ev) {
    let popover = this.popoverCtrl.create(RangeExtendPopoverPage);
      ev: ev