Slides

We recommend Swiper.js if you need a modern touch slider component. It powers our ion-slides component, but we now recommend that developers use Swiper for Angular directly.

This guide will go over how to get Swiper for Angular set up in your Ionic Framework application. It will also go over any migration information you may need to move from ion-slides to the official Swiper Angular integration.

Getting Started#

To get started, install the Swiper dependency in your project:

npm install swiper

Swiping with Style#

Next, we need to import the base Swiper styles. We recommend importing the styles in the component in which Swiper is being used. This ensures that the styles are only loaded when needed:

// slides.component.scss
@import '~swiper/swiper';

Ionic Framework also provides some default styles, as well as the CSS Variables that were used inside of the old ion-slides. If you would like to continue to use those styles and CSS Variables, be sure to import the ionic-swiper.css file:

// slides.component.scss
@import '~swiper/swiper';
@import '~@ionic/angular/css/ionic-swiper';

You should also update any selectors to target the correct Swiper classes. If you were targeting ion-slides, you should target .swiper-container. If you were targeting ion-slide, you should target .swiper-slide.

Vanilla CSS (Optional)#

For developers not using a CSS pre-processor, Swiper also provides the styles bundled together. It is important to note that this will import styles for all modules as well.

// slides.component.css
@import '~swiper/swiper-bundle.min';
@import '~@ionic/angular/css/ionic-swiper';

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 registered by adding SwiperModule to the module of the component you wish to use Swiper in.

// app.module.ts
import { SwiperModule } from 'swiper/angular';
@NgModule({
  imports: [SwiperModule],
})
export class AppModule {}

<!-- swiper.component.html -->

<swiper>
  <swiper-slide>Slide 1</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
</swiper>

The IonicSwiper Module#

There are a few edge cases in Ionic Framework where Swiper may not be able to compute the slider dimensions properly. As a result, we have created the IonicSwiper module to resolve some of these issues.

To install it, we first need to import the core Swiper library and the IonicSwiper module:

// slides.component.ts
import SwiperCore from 'swiper';
import { IonicSwiper } from '@ionic/angular';

Then we can install the module:

// slides.component.ts
import { Component } from '@angular/core';
import SwiperCore from 'swiper';
import { IonicSwiper } from '@ionic/angular';

SwiperCore.use([IonicSwiper]);

@Component({
  selector: 'app-slides-example',
  templateUrl: 'slides.component.html',
  styleUrls: ['slides.component.scss']
})
export class SlidesExample {
  ...
}

Additional Modules#

By default, Swiper for Angular uses the core version of Swiper and does not import any additional modules. To use modules such as Navigation or Pagination, you need to import them first.

ion-slides automatically included the Pagination, Scrollbar, Autoplay, Keyboard, and Zoom modules. If you used any of these features, be sure to import them in your application.

The following example shows how to install the Navigation and Pagination plugins:

// slides.component.ts
import { Component } from '@angular/core';
import SwiperCore, { Navigation, Pagination } from 'swiper';
import { IonicSwiper } from '@ionic/angular';

SwiperCore.use([IonicSwiper, Navigation, Pagination]);

@Component({
  selector: 'app-slides-example',
  templateUrl: 'slides.component.html',
  styleUrls: ['slides.component.scss']
})
export class SlidesExample {
  ...
}

<!-- swiper.component.html -->
<swiper
  [pagination]="{ clickable: true }"
  navigation
>
  <swiper-slide>Slide 1</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
</swiper>

Importing swiper-bundle.min.css imports styles for all modules. When using the SCSS or Less styles, you will need to import the styles for each module. See https://swiperjs.com/angular#styles for a full list of stylesheets.
Properties#

Swiper options are provided as props directly on the <swiper> component rather than via the options object in ion-slides.

Let's say in an app with ion-slides we had the slidesPerView and loop options set:

<ion-slides
  [options]="{ slidesPerView: true, loop: true }"
>
  <ion-slide>Slide 1</ion-slide>
  <ion-slide>Slide 3</ion-slide>
  <ion-slide>Slide 3</ion-slide>
</ion-slides>

To migrate, we would move these options out of the options object and onto the <swiper> component directly as properties:

<swiper
  [slidesPerView]="3"
  [loop]="true"
>
  <swiper-slide>Slide 1</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
</swiper>

Below is a full list of property changes when going from ion-slides to Swiper Angular:

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-container` or `.md .swiper-container`
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.

All properties available in Swiper Angular can be found at https://swiperjs.com/angular#swiper-props.

Events#

Since the Swiper component is not provided by Ionic Framework, event names will not have an ionSlide prefix to them.

Let's say in an app with ion-slides we used the ionSlideDidChange event:

<ion-slides
  (ionSlideDidChange)="onSlideChange()"
>
  <ion-slide>Slide 1</ion-slide>
  <ion-slide>Slide 3</ion-slide>
  <ion-slide>Slide 3</ion-slide>
</ion-slides>

To migrate, we would change the name of the event to slideChange:

<swiper
  (slideChange)="onSlideChange()"
>
  <swiper-slide>Slide 1</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
</swiper>

Below is a full list of event name changes when going from ion-slides to Swiper Angular:

ion-slides Event	Swiper Event
ionSlideWillChange	slideChangeTransitionStart
ionSlideDidChange	slideChangeTransitionEnd
ionSlideDoubleTap	doubleTap
ionSlideDrag	sliderMove
ionSlideNextStart	slideNextTransitionStart
ionSlideNextEnd	slideNextTransitionEnd
ionSlidePrevStart	slidePrevTransitionStart
ionSlidePrevEnd	slidePrevTransitionEnd
ionSlideReachStart	reachBeginning
ionSlideReachEnd	reachEnd
ionSlideTap	tap
ionSlideTouchStart	touchStart
ionSlideTouchEnd	touchEnd
ionSlideTransitionStart	transitionStart
ionSlideTransitionEnd	transitionEnd
ionSlidesDidLoad	init

All events available in Swiper Angular can be found at https://swiperjs.com/angular#swiper-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 Angular component. To do this, we recommend getting a reference to the Swiper instance via (swiper):

<!-- slides.component.html -->

<swiper
  (swiper)="setSwiperInstance($event)"
>
  <swiper-slide>Slide 1</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
</swiper>

// slides.component.ts
import { Component } from '@angular/core';
import SwiperCore from 'swiper';
import { IonicSwiper } from '@ionic/angular';

SwiperCore.use([IonicSwiper]);

@Component({
  selector: 'app-slides-example',
  templateUrl: 'slides.component.html',
  styleUrls: ['slides.component.scss']
})
export class SlidesExample {
  private slides;
  constructor() {}
  setSwiperInstance(ev) {
    this.slides = ev;
  }
}

From here, if you wanted to access a property on the Swiper instance you would access this.slides. For example, if you wanted to check the isBeginning property, you could do: this.slides.isBeginning. Make sure this.slides is defined first though!

Below is a full list of method changes when going from ion-slides to Swiper Angular:

Name	Notes
getActiveIndex()	Use the `activeIndex` property instead.
getPreviousIndex()	Use the `previousIndex` property instead.
getSwiper()	Get a reference to the Swiper instance using `(swiper)`. 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 similar to how you installed the other modules:

<!-- slides.component.html -->

<swiper
  effect="fade"
>
  <swiper-slide>Slide 1</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
  <swiper-slide>Slide 3</swiper-slide>
</swiper>

// slides.component.ts
import { Component } from '@angular/core';
import SwiperCore, { EffectFade } from 'swiper';
import { IonicSwiper } from '@ionic/angular';

SwiperCore.use([IonicSwiper, EffectFade]);

@Component({
  selector: 'app-slides-example',
  templateUrl: 'slides.component.html',
  styleUrls: ['slides.component.scss']
})
export class SlidesExample {
  private slides;
  constructor() {}
  setSwiperInstance(ev) {
    this.slides = ev;
  }
}

For more information on effects in Swiper, please see https://swiperjs.com/angular#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 Angular Introduction and then referencing the Swiper API docs.

Where do I file issues?#

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 IonicSwiper module, new bugs should be filed on the Ionic Framework repo: https://github.com/ionic-team/ionic-framework/issues