ion-content

<ion-content
  [scrollEvents]="true"
  (ionScrollStart)="logScrollStart()"
  (ionScroll)="logScrolling($event)"
  (ionScrollEnd)="logScrollEnd()">
    <h1>Main Content</h1>

    <div slot="fixed">
      <h1>Fixed Content</h1>
    </div>
</ion-content>

<ion-content>
  <h1>Main Content</h1>

  <div slot="fixed">
    <h1>Fixed Content</h1>
  </div>
</ion-content>

var content = document.querySelector('ion-content');
content.scrollEvents = true;
content.addEventListener('ionScrollStart', () => console.log('scroll start'));
content.addEventListener('ionScroll', (ev) => console.log('scroll', ev.detail));
content.addEventListener('ionScrollEnd', () => console.log('scroll end'));

import React from 'react';
import { IonContent } from '@ionic/react';

const ContentExample: React.FC = () => (
  <IonContent
    scrollEvents={true}
    onIonScrollStart={() => {}}
    onIonScroll={() => {}}
    onIonScrollEnd={() => {}}>
      <h1>Main Content</h1>

      <div slot="fixed">
        <h1>Fixed Content</h1>
      </div>
  </IonContent>
);

import { Component, h } from '@stencil/core';

@Component({
  tag: 'content-example',
  styleUrl: 'content-example.css'
})
export class ContentExample {
  logScrollStart() {
    console.log('Scroll start');
  }

  logScrolling(ev) {
    console.log('Scrolling', ev);
  }

  logScrollEnd() {
    console.log('Scroll end');
  }

  render() {
    return [
      <ion-content
        scrollEvents={true}
        onIonScrollStart={() => this.logScrollStart()}
        onIonScroll={(ev) => this.logScrolling(ev)}
        onIonScrollEnd={() => this.logScrollEnd()}>
          <h1>Main Content</h1>

          <div slot="fixed">
            <h1>Fixed Content</h1>
          </div>
      </ion-content>
    ];
  }
}

<template>
  <ion-content
    :scrollEvents="true"
    @ionScrollStart="logScrollStart()"
    @ionScroll="logScrolling($event)"
    @ionScrollEnd="logScrollEnd()">
      <h1>Main Content</h1>

      <div slot="fixed">
        <h1>Fixed Content</h1>
      </div>
  </ion-content>
</template>