Migrating From IonSlides to Swiper.js
We recommend Swiper.js if you need a modern touch slider component. It powers our IonSlides
component, but we now recommend that developers use Swiper for React directly.
This guide will go over how to get Swiper for React set up in your Ionic Framework application. It will also go over any migration information you may need to move from IonSlides
to the official Swiper React integration.
note
Swiper's React component is set to be removed in a future release of Swiper, with Swiper Element as the replacement. However, this guide shows how to migrate to the React component because it provides the most stable experience at the time of writing. Notably, React does not have strong support for Web Components yet.
Using Swiper's React component is not required to use Swiper.js with Ionic Framework.
Getting Started
First, update to the latest version of Ionic:
npm install @ionic/react@latest @ionic/react-router@latest
Once that is done, install the Swiper dependency in your project:
npm install swiper@latest
note
Create React App does not support pure ESM packages yet. Developers can still use Swiper, but they will need to use Swiper 7.2.0+ and use direct file imports. This guide assumes you are using Create React App and will show you how to use these direct imports.
Swiping with Style
Next, we need to import the base Swiper styles. We are also going to import the styles that Ionic provides which will let us customize the Swiper styles using the same CSS Variables that we used with IonSlides
.
We recommend importing the styles in the component in which Swiper is being used. This ensures that the styles are only loaded when needed:
import React from 'react';
import { IonContent, IonPage } from '@ionic/react';
import { Swiper, SwiperSlide } from 'swiper/react';
import 'swiper/swiper.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
...
);
};
export default Home;
note
Importing @ionic/react/css/ionic-swiper.css
is not required to use Swiper.js with Ionic. This files is used for backward-compatibility with the IonSlides
component and can be safely omitted if you prefer not to use the CSS Variables provided in the stylesheet.
note
Not using Create React App? You can import the Swiper CSS from swiper/css
instead.
Updating Selectors
Previously, we were able to target ion-slides
and ion-slide
to apply any custom styling. The contents of those style blocks remain the same, but we need to update the selectors. Below is a list of selector changes when going from ion-slides
to Swiper React:
ion-slides Selector | Swiper Selector |
---|---|
ion-slides | .swiper |
ion-slide | .swiper-slide |
Pre-processors (optional)
For developers using SCSS or Less styles, Swiper also provides imports for those files.
For Less styles, replace css
with less
in the Swiper import path:
import React from 'react';
import { IonContent, IonPage } from '@ionic/react';
import { Swiper, SwiperSlide } from 'swiper/react';
import 'swiper/swiper.less';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
...
);
};
export default Home;
For SCSS styles replace css
with scss
in the Swiper import path:
import React from 'react';
import { IonContent, IonPage } from '@ionic/react';
import { Swiper, SwiperSlide } from 'swiper/react';
import 'swiper/swiper.scss';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
...
);
};
export default Home;
Using Components
Swiper exports two components: Swiper
and SwiperSlide
. The Swiper
component is the equivalent of IonSlides
, and SwiperSlide
is the equivalent of IonSlide
.
These components are imported from swiper/react/swiper-react.js
:
import React from 'react';
import { IonContent, IonPage } from '@ionic/react';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import 'swiper/swiper.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
<IonPage>
<IonContent>
<Swiper>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
</IonContent>
</IonPage>
);
};
export default Home;
note
Not using Create React App? You can import the Swiper components from swiper/react
instead.
Using Modules
By default, Swiper for React does not import any additional modules. To use modules such as Navigation or Pagination, you need to import them first.
IonSlides
automatically included the Pagination, Scrollbar, Autoplay, Keyboard, and Zoom modules. This part of the guide will show you how to install these modules.
To begin, we need to import the modules and their corresponding CSS files from the swiper
package:
import React from 'react';
import { IonContent, IonPage } from '@ionic/react';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import { Autoplay, Keyboard, Pagination, Scrollbar, Zoom } from 'swiper';
import 'swiper/swiper.min.css';
import 'swiper/modules/autoplay/autoplay.min.css';
import 'swiper/modules/keyboard/keyboard.min.css';
import 'swiper/modules/pagination/pagination.min.css';
import 'swiper/modules/scrollbar/scrollbar.min.css';
import 'swiper/modules/zoom/zoom.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
<IonPage>
<IonContent>
<Swiper>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
</IonContent>
</IonPage>
);
};
export default Home;
note
Not using Create React App? You can import these modules from swiper/css/[MODULE NAME]
instead (i.e. swiper/css/autoplay
).
From here, we need to provide these modules to Swiper by using the modules
property on the Swiper
component:
import React from 'react';
import { IonContent, IonPage } from '@ionic/react';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import { Autoplay, Keyboard, Pagination, Scrollbar, Zoom } from 'swiper';
import 'swiper/swiper.min.css';
import 'swiper/modules/autoplay/autoplay.min.css';
import 'swiper/modules/keyboard/keyboard.min.css';
import 'swiper/modules/pagination/pagination.min.css';
import 'swiper/modules/scrollbar/scrollbar.min.css';
import 'swiper/modules/zoom/zoom.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
<IonPage>
<IonContent>
<Swiper modules={[Autoplay, Keyboard, Pagination, Scrollbar, Zoom]}>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
</IonContent>
</IonPage>
);
};
export default Home;
Finally, we can turn these features on by using the appropriate properties:
import React from 'react';
import { IonContent, IonPage } from '@ionic/react';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import { Autoplay, Keyboard, Pagination, Scrollbar, Zoom } from 'swiper';
import 'swiper/swiper.min.css';
import 'swiper/modules/autoplay/autoplay.min.css';
import 'swiper/modules/keyboard/keyboard.min.css';
import 'swiper/modules/pagination/pagination.min.css';
import 'swiper/modules/scrollbar/scrollbar.min.css';
import 'swiper/modules/zoom/zoom.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
<IonPage>
<IonContent>
<Swiper
modules={[Autoplay, Keyboard, Pagination, Scrollbar, Zoom]}
autoplay={true}
keyboard={true}
pagination={true}
scrollbar={true}
zoom={true}
>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
</IonContent>
</IonPage>
);
};
export default Home;
note
See https://swiperjs.com/react#usage for a full list of modules.
The IonicSlides Module
With IonSlides
, Ionic automatically customized dozens of Swiper properties. This resulted in an experience that felt smooth when swiping on mobile devices. We recommend using the IonicSlides
module to ensure that these properties are also set when using Swiper directly. However, using this module is not required to use Swiper.js in Ionic.
We can install the IonicSlides
module by importing it from @ionic/react
and passing it in as the last item in the modules
array:
import React from 'react';
import { IonContent, IonPage, IonicSlides } from '@ionic/react';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import { Autoplay, Keyboard, Pagination, Scrollbar, Zoom } from 'swiper';
import 'swiper/swiper.min.css';
import 'swiper/modules/autoplay/autoplay.min.css';
import 'swiper/modules/keyboard/keyboard.min.css';
import 'swiper/modules/pagination/pagination.min.css';
import 'swiper/modules/scrollbar/scrollbar.min.css';
import 'swiper/modules/zoom/zoom.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
<IonPage>
<IonContent>
<Swiper
modules={[Autoplay, Keyboard, Pagination, Scrollbar, Zoom, IonicSlides]}
autoplay={true}
keyboard={true}
pagination={true}
scrollbar={true}
zoom={true}
>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
</IonContent>
</IonPage>
);
};
export default Home;
note
The IonicSlides
module must be the last module in the array. This will let it automatically customize the settings of modules such as Pagination, Scrollbar, Zoom, and more.
Properties
Swiper options are provided as props directly on the <Swiper>
component rather than via the options
object in IonSlides
.
Let's say in an app with IonSlides
we had the slidesPerView
and loop
options set:
const MyComponent: React.FC = () => {
return (
<IonSlides
options={{
slidesPerView: 3,
loop: true,
}}
>
<IonSlide>Slide 1</IonSlide>
<IonSlide>Slide 2</IonSlide>
<IonSlide>Slide 3</IonSlide>
</IonSlides>
);
};
To migrate, we would move these options out of the options
object and onto the <Swiper>
component directly as properties:
const MyComponent: React.FC = () => {
return (
<Swiper slidesPerView={3} loop={true}>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
);
};
Below is a full list of property changes when going from IonSlides
to Swiper React:
Name | Notes |
---|---|
options | Set each option as a property directly on the <Swiper> component. |
mode | For different styles based upon the mode, you can target the slides with .ios .swiper or .md .swiper in your CSS. |
pager | Use the pagination property instead. Requires installation of the Pagination module. |
scrollbar | You can continue to use the scrollbar property, just be sure to install the Scrollbar module first. |
note
All properties available in Swiper React can be found at https://swiperjs.com/react#swiper-props.
Events
Since the Swiper
component is not provided by Ionic Framework, event names will not have an onIonSlide
prefix to them.
Let's say in an app with IonSlides
we used the onIonSlideDidChange
event:
const MyComponent: React.FC = () => {
return (
<IonSlides onIonSlideDidChange={() => onSlideChange()}>
<IonSlide>Slide 1</IonSlide>
<IonSlide>Slide 2</IonSlide>
<IonSlide>Slide 3</IonSlide>
</IonSlides>
);
};
To migrate, we would change the name of the event to onSlideChange
:
const MyComponent: React.FC = () => {
return (
<Swiper onSlideChange={() => onSlideChange()}>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
);
};
Below is a full list of event name changes when going from IonSlides
to Swiper React:
IonSlides Event | Swiper Event |
---|---|
onIonSlideWillChange | onSlideChangeTransitionStart |
onIonSlideDidChange | onSlideChangeTransitionEnd |
onIonSlideDoubleTap | onDoubleTap |
onIonSlideDrag | onSliderMove |
onIonSlideNextStart | onSlideNextTransitionStart |
onIonSlideNextEnd | onSlideNextTransitionEnd |
onIonSlidePrevStart | onSlidePrevTransitionStart |
onIonSlidePrevEnd | onSlidePrevTransitionEnd |
onIonSlideReachStart | onReachBeginning |
onIonSlideReachEnd | onReachEnd |
onIonSlideTap | onTap |
onIonSlideTouchStart | onTouchStart |
onIonSlideTouchEnd | onTouchEnd |
onIonSlideTransitionStart | onTransitionStart |
onIonSlideTransitionEnd | onTransitionEnd |
onIonSlidesDidLoad | onInit |
note
All events available in Swiper can be found at https://swiperjs.com/swiper-api#events.
Methods
Most methods have been removed in favor of accessing the Swiper
props directly.
Accessing these properties can be tricky as you want to access the properties on the Swiper instance itself, not your React component. To do this, we recommend getting a reference to the Swiper
instance via onSwiper
:
import React, { useState } from 'react';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import { Swiper as SwiperInterface } from 'swiper';
...
const Home: React.FC = () => {
const [swiperInstance, setSwiperInstance] = useState<SwiperInterface>();
return (
...
<Swiper
onSwiper={(swiper) => setSwiperInstance(swiper)}
>
...
</Swiper>
)
};
export default Home;
From here, if you wanted to access a property on the Swiper instance you would access swiperInstance
. For example, if you wanted to check the isBeginning
property, you could do: swiperInstance.isBeginning
. Make sure swiperInstance
is defined first though!
Below is a full list of method changes when going from IonSlides
to Swiper React:
IonSlides Method | Notes |
---|---|
getActiveIndex() | Use the activeIndex property instead. |
getPreviousIndex() | Use the previousIndex property instead. |
getSwiper() | Get a reference to the Swiper instance using onSwiper . See example above. |
isBeginning() | Use the isBeginning property instead. |
isEnd() | Use the isEnd property instead. |
length() | Use the slides property instead. (i.e swiperRef.slides.length) |
lockSwipeToNext() | Use the allowSlidesNext property instead. |
lockSwipeToPrev() | Use the allowSlidePrev property instead. |
lockSwipes() | Use the allowSlideNext , allowSlidePrev , and allowTouchMove properties instead. |
startAutoplay() | Use the autoplay property instead. |
stopAutoplay() | Use the autoplay property instead. |
Effects
If you are using effects such as Cube or Fade, you can install them just like we did with the other modules. In this example, we will use the fade effect. To start, we will import EffectFade
from swiper
and provide it in the modules
array:
import React from 'react';
import { IonContent, IonPage, IonicSlides } from '@ionic/react';
import { EffectFade } from 'swiper';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import 'swiper/swiper.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
<IonPage>
<IonContent>
<Swiper modules={[EffectFade, IonicSlides]}>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
</IonContent>
</IonPage>
);
};
export default Home;
Next, we need to import the stylesheet associated with the effect:
import React from 'react';
import { IonContent, IonPage, IonicSlides } from '@ionic/react';
import { EffectFade } from 'swiper';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import 'swiper/swiper.min.css';
import 'swiper/modules/effect-fade/effect-fade.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
<IonPage>
<IonContent>
<Swiper modules={[EffectFade, IonicSlides]}>
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
</IonContent>
</IonPage>
);
};
export default Home;
note
Not using Create React App? You can import these effects from swiper/css/[EFFECT NAME]
instead (i.e. swiper/css/effect-fade
).
After that, we can activate it by setting the effect
property on swiper
to "fade"
:
import React from 'react';
import { IonContent, IonPage, IonicSlides } from '@ionic/react';
import { EffectFade } from 'swiper';
import { Swiper, SwiperSlide } from 'swiper/react/swiper-react.js';
import 'swiper/swiper.min.css';
import 'swiper/modules/effect-fade/effect-fade.min.css';
import '@ionic/react/css/ionic-swiper.css';
const Home: React.FC = () => {
return (
<IonPage>
<IonContent>
<Swiper modules={[EffectFade, IonicSlides]} effect="fade">
<SwiperSlide>Slide 1</SwiperSlide>
<SwiperSlide>Slide 2</SwiperSlide>
<SwiperSlide>Slide 3</SwiperSlide>
</Swiper>
</IonContent>
</IonPage>
);
};
export default Home;
note
For more information on effects in Swiper, please see https://swiperjs.com/react#effects.
Wrap Up
Now that you have Swiper installed, there is a whole set of new Swiper features for you to enjoy. We recommend starting with the Swiper React Introduction and then referencing the Swiper API docs.
FAQ
Where can I find an example of this migration?
You can find a sample app with ion-slides
and the equivalent Swiper usage at https://github.com/ionic-team/slides-migration-samples.
Where can I get help with this migration?
If you are running into issues with the migration, please create a post on the Ionic Forum.
Where do I file bug reports?
Before opening an issue, please consider creating a post on the Swiper Discussion Board or the Ionic Forum to see if your issue can be resolved by the community.
If you are running into problems with the Swiper library, new bugs should be filed on the Swiper repo: https://github.com/nolimits4web/swiper/issues
If you are running into problems with the IonicSlides
module, new bugs should be filed on the Ionic Framework repo: https://github.com/ionic-team/ionic-framework/issues