# ion-slides

The Slides component is a multi-section container. Each section can be swiped
or dragged between. It contains any number of [Slide](../slide) components.


Adopted from Swiper.js:
The most modern mobile touch slider and framework with hardware accelerated transitions.

http://www.idangero.us/swiper/

Copyright 2016, Vladimir Kharlampidi
The iDangero.us
http://www.idangero.us/

Licensed under MIT

### Custom Animations

By default, Ionic slides use the built-in `slide` animation effect. Custom animations can be provided via the `options` property. Examples of other animations can be found below.


#### Coverflow

```typescript
const slideOpts = {
  slidesPerView: 3,
  coverflowEffect: {
    rotate: 50,
    stretch: 0,
    depth: 100,
    modifier: 1,
    slideShadows: true,
  },
  on: {
    beforeInit() {
      const swiper = this;

      swiper.classNames.push(`${swiper.params.containerModifierClass}coverflow`);
      swiper.classNames.push(`${swiper.params.containerModifierClass}3d`);

      swiper.params.watchSlidesProgress = true;
      swiper.originalParams.watchSlidesProgress = true;
    },
    setTranslate() {
      const swiper = this;
      const {
        width: swiperWidth, height: swiperHeight, slides, $wrapperEl, slidesSizesGrid, $
      } = swiper;
      const params = swiper.params.coverflowEffect;
      const isHorizontal = swiper.isHorizontal();
      const transform$$1 = swiper.translate;
      const center = isHorizontal ? -transform$$1 + (swiperWidth / 2) : -transform$$1 + (swiperHeight / 2);
      const rotate = isHorizontal ? params.rotate : -params.rotate;
      const translate = params.depth;
      // Each slide offset from center
      for (let i = 0, length = slides.length; i < length; i += 1) {
        const $slideEl = slides.eq(i);
        const slideSize = slidesSizesGrid[i];
        const slideOffset = $slideEl[0].swiperSlideOffset;
        const offsetMultiplier = ((center - slideOffset - (slideSize / 2)) / slideSize) * params.modifier;

         let rotateY = isHorizontal ? rotate * offsetMultiplier : 0;
        let rotateX = isHorizontal ? 0 : rotate * offsetMultiplier;
        // var rotateZ = 0
        let translateZ = -translate * Math.abs(offsetMultiplier);

         let translateY = isHorizontal ? 0 : params.stretch * (offsetMultiplier);
        let translateX = isHorizontal ? params.stretch * (offsetMultiplier) : 0;

         // Fix for ultra small values
        if (Math.abs(translateX) < 0.001) translateX = 0;
        if (Math.abs(translateY) < 0.001) translateY = 0;
        if (Math.abs(translateZ) < 0.001) translateZ = 0;
        if (Math.abs(rotateY) < 0.001) rotateY = 0;
        if (Math.abs(rotateX) < 0.001) rotateX = 0;

         const slideTransform = `translate3d(${translateX}px,${translateY}px,${translateZ}px)  rotateX(${rotateX}deg) rotateY(${rotateY}deg)`;

         $slideEl.transform(slideTransform);
        $slideEl[0].style.zIndex = -Math.abs(Math.round(offsetMultiplier)) + 1;
        if (params.slideShadows) {
          // Set shadows
          let $shadowBeforeEl = isHorizontal ? $slideEl.find('.swiper-slide-shadow-left') : $slideEl.find('.swiper-slide-shadow-top');
          let $shadowAfterEl = isHorizontal ? $slideEl.find('.swiper-slide-shadow-right') : $slideEl.find('.swiper-slide-shadow-bottom');
          if ($shadowBeforeEl.length === 0) {
            $shadowBeforeEl = swiper.$(`<div class="swiper-slide-shadow-${isHorizontal ? 'left' : 'top'}"></div>`);
            $slideEl.append($shadowBeforeEl);
          }
          if ($shadowAfterEl.length === 0) {
            $shadowAfterEl = swiper.$(`<div class="swiper-slide-shadow-${isHorizontal ? 'right' : 'bottom'}"></div>`);
            $slideEl.append($shadowAfterEl);
          }
          if ($shadowBeforeEl.length) $shadowBeforeEl[0].style.opacity = offsetMultiplier > 0 ? offsetMultiplier : 0;
          if ($shadowAfterEl.length) $shadowAfterEl[0].style.opacity = (-offsetMultiplier) > 0 ? -offsetMultiplier : 0;
        }
      }

       // Set correct perspective for IE10
      if (swiper.support.pointerEvents || swiper.support.prefixedPointerEvents) {
        const ws = $wrapperEl[0].style;
        ws.perspectiveOrigin = `${center}px 50%`;
      }
    },
    setTransition(duration) {
      const swiper = this;
      swiper.slides
        .transition(duration)
        .find('.swiper-slide-shadow-top, .swiper-slide-shadow-right, .swiper-slide-shadow-bottom, .swiper-slide-shadow-left')
        .transition(duration);
    }
  }
}
```

#### Cube

```typescript
const slideOpts = {
  grabCursor: true,
  cubeEffect: {
    shadow: true,
    slideShadows: true,
    shadowOffset: 20,
    shadowScale: 0.94,
  },
  on: {
    beforeInit: function() {
      const swiper = this;
      swiper.classNames.push(`${swiper.params.containerModifierClass}cube`);
      swiper.classNames.push(`${swiper.params.containerModifierClass}3d`);

      const overwriteParams = {
        slidesPerView: 1,
        slidesPerColumn: 1,
        slidesPerGroup: 1,
        watchSlidesProgress: true,
        resistanceRatio: 0,
        spaceBetween: 0,
        centeredSlides: false,
        virtualTranslate: true,
      };

      this.params = Object.assign(this.params, overwriteParams);
      this.originalParams = Object.assign(this.originalParams, overwriteParams);
    },
    setTranslate: function() {
      const swiper = this;
      const {
        $el, $wrapperEl, slides, width: swiperWidth, height: swiperHeight, rtlTranslate: rtl, size: swiperSize,
      } = swiper;
      const params = swiper.params.cubeEffect;
      const isHorizontal = swiper.isHorizontal();
      const isVirtual = swiper.virtual && swiper.params.virtual.enabled;
      let wrapperRotate = 0;
      let $cubeShadowEl;
      if (params.shadow) {
        if (isHorizontal) {
          $cubeShadowEl = $wrapperEl.find('.swiper-cube-shadow');
          if ($cubeShadowEl.length === 0) {
            $cubeShadowEl = swiper.$('<div class="swiper-cube-shadow"></div>');
            $wrapperEl.append($cubeShadowEl);
          }
          $cubeShadowEl.css({ height: `${swiperWidth}px` });
        } else {
          $cubeShadowEl = $el.find('.swiper-cube-shadow');
          if ($cubeShadowEl.length === 0) {
            $cubeShadowEl = swiper.$('<div class="swiper-cube-shadow"></div>');
            $el.append($cubeShadowEl);
          }
        }
      }

      for (let i = 0; i < slides.length; i += 1) {
        const $slideEl = slides.eq(i);
        let slideIndex = i;
        if (isVirtual) {
          slideIndex = parseInt($slideEl.attr('data-swiper-slide-index'), 10);
        }
        let slideAngle = slideIndex * 90;
        let round = Math.floor(slideAngle / 360);
        if (rtl) {
          slideAngle = -slideAngle;
          round = Math.floor(-slideAngle / 360);
        }
        const progress = Math.max(Math.min($slideEl[0].progress, 1), -1);
        let tx = 0;
        let ty = 0;
        let tz = 0;
        if (slideIndex % 4 === 0) {
          tx = -round * 4 * swiperSize;
          tz = 0;
        } else if ((slideIndex - 1) % 4 === 0) {
          tx = 0;
          tz = -round * 4 * swiperSize;
        } else if ((slideIndex - 2) % 4 === 0) {
          tx = swiperSize + (round * 4 * swiperSize);
          tz = swiperSize;
        } else if ((slideIndex - 3) % 4 === 0) {
          tx = -swiperSize;
          tz = (3 * swiperSize) + (swiperSize * 4 * round);
        }
        if (rtl) {
          tx = -tx;
        }

         if (!isHorizontal) {
          ty = tx;
          tx = 0;
        }

         const transform$$1 = `rotateX(${isHorizontal ? 0 : -slideAngle}deg) rotateY(${isHorizontal ? slideAngle : 0}deg) translate3d(${tx}px, ${ty}px, ${tz}px)`;
        if (progress <= 1 && progress > -1) {
          wrapperRotate = (slideIndex * 90) + (progress * 90);
          if (rtl) wrapperRotate = (-slideIndex * 90) - (progress * 90);
        }
        $slideEl.transform(transform$$1);
        if (params.slideShadows) {
          // Set shadows
          let shadowBefore = isHorizontal ? $slideEl.find('.swiper-slide-shadow-left') : $slideEl.find('.swiper-slide-shadow-top');
          let shadowAfter = isHorizontal ? $slideEl.find('.swiper-slide-shadow-right') : $slideEl.find('.swiper-slide-shadow-bottom');
          if (shadowBefore.length === 0) {
            shadowBefore = swiper.$(`<div class="swiper-slide-shadow-${isHorizontal ? 'left' : 'top'}"></div>`);
            $slideEl.append(shadowBefore);
          }
          if (shadowAfter.length === 0) {
            shadowAfter = swiper.$(`<div class="swiper-slide-shadow-${isHorizontal ? 'right' : 'bottom'}"></div>`);
            $slideEl.append(shadowAfter);
          }
          if (shadowBefore.length) shadowBefore[0].style.opacity = Math.max(-progress, 0);
          if (shadowAfter.length) shadowAfter[0].style.opacity = Math.max(progress, 0);
        }
      }
      $wrapperEl.css({
        '-webkit-transform-origin': `50% 50% -${swiperSize / 2}px`,
        '-moz-transform-origin': `50% 50% -${swiperSize / 2}px`,
        '-ms-transform-origin': `50% 50% -${swiperSize / 2}px`,
        'transform-origin': `50% 50% -${swiperSize / 2}px`,
      });

       if (params.shadow) {
        if (isHorizontal) {
          $cubeShadowEl.transform(`translate3d(0px, ${(swiperWidth / 2) + params.shadowOffset}px, ${-swiperWidth / 2}px) rotateX(90deg) rotateZ(0deg) scale(${params.shadowScale})`);
        } else {
          const shadowAngle = Math.abs(wrapperRotate) - (Math.floor(Math.abs(wrapperRotate) / 90) * 90);
          const multiplier = 1.5 - (
            (Math.sin((shadowAngle * 2 * Math.PI) / 360) / 2)
            + (Math.cos((shadowAngle * 2 * Math.PI) / 360) / 2)
          );
          const scale1 = params.shadowScale;
          const scale2 = params.shadowScale / multiplier;
          const offset$$1 = params.shadowOffset;
          $cubeShadowEl.transform(`scale3d(${scale1}, 1, ${scale2}) translate3d(0px, ${(swiperHeight / 2) + offset$$1}px, ${-swiperHeight / 2 / scale2}px) rotateX(-90deg)`);
        }
      }

      const zFactor = (swiper.browser.isSafari || swiper.browser.isUiWebView) ? (-swiperSize / 2) : 0;
      $wrapperEl
        .transform(`translate3d(0px,0,${zFactor}px) rotateX(${swiper.isHorizontal() ? 0 : wrapperRotate}deg) rotateY(${swiper.isHorizontal() ? -wrapperRotate : 0}deg)`);
    },
    setTransition: function(duration) {
      const swiper = this;
      const { $el, slides } = swiper;
      slides
        .transition(duration)
        .find('.swiper-slide-shadow-top, .swiper-slide-shadow-right, .swiper-slide-shadow-bottom, .swiper-slide-shadow-left')
        .transition(duration);
      if (swiper.params.cubeEffect.shadow && !swiper.isHorizontal()) {
        $el.find('.swiper-cube-shadow').transition(duration);
      }
    },
  }
}
```

#### Fade

```typescript
const slideOpts = {
  on: {
    beforeInit() {
      const swiper = this;
      swiper.classNames.push(`${swiper.params.containerModifierClass}fade`);
      const overwriteParams = {
        slidesPerView: 1,
        slidesPerColumn: 1,
        slidesPerGroup: 1,
        watchSlidesProgress: true,
        spaceBetween: 0,
        virtualTranslate: true,
      };
      swiper.params = Object.assign(swiper.params, overwriteParams);
      swiper.params = Object.assign(swiper.originalParams, overwriteParams);
    },
    setTranslate() {
      const swiper = this;
      const { slides } = swiper;
      for (let i = 0; i < slides.length; i += 1) {
        const $slideEl = swiper.slides.eq(i);
        const offset$$1 = $slideEl[0].swiperSlideOffset;
        let tx = -offset$$1;
        if (!swiper.params.virtualTranslate) tx -= swiper.translate;
        let ty = 0;
        if (!swiper.isHorizontal()) {
          ty = tx;
          tx = 0;
        }
        const slideOpacity = swiper.params.fadeEffect.crossFade
          ? Math.max(1 - Math.abs($slideEl[0].progress), 0)
          : 1 + Math.min(Math.max($slideEl[0].progress, -1), 0);
        $slideEl
          .css({
            opacity: slideOpacity,
          })
          .transform(`translate3d(${tx}px, ${ty}px, 0px)`);
      }
    },
    setTransition(duration) {
      const swiper = this;
      const { slides, $wrapperEl } = swiper;
      slides.transition(duration);
      if (swiper.params.virtualTranslate && duration !== 0) {
        let eventTriggered = false;
        slides.transitionEnd(() => {
          if (eventTriggered) return;
          if (!swiper || swiper.destroyed) return;
          eventTriggered = true;
          swiper.animating = false;
          const triggerEvents = ['webkitTransitionEnd', 'transitionend'];
          for (let i = 0; i < triggerEvents.length; i += 1) {
            $wrapperEl.trigger(triggerEvents[i]);
          }
        });
      }
    },
  }
}
```

#### Flip

```typescript
const slideOpts = {
  on: {
    beforeInit() {
      const swiper = this;
      swiper.classNames.push(`${swiper.params.containerModifierClass}flip`);
      swiper.classNames.push(`${swiper.params.containerModifierClass}3d`);
      const overwriteParams = {
        slidesPerView: 1,
        slidesPerColumn: 1,
        slidesPerGroup: 1,
        watchSlidesProgress: true,
        spaceBetween: 0,
        virtualTranslate: true,
      };
      swiper.params = Object.assign(swiper.params, overwriteParams);
      swiper.originalParams = Object.assign(swiper.originalParams, overwriteParams);
    },
    setTranslate() {
      const swiper = this;
      const { $, slides, rtlTranslate: rtl } = swiper;
      for (let i = 0; i < slides.length; i += 1) {
        const $slideEl = slides.eq(i);
        let progress = $slideEl[0].progress;
        if (swiper.params.flipEffect.limitRotation) {
          progress = Math.max(Math.min($slideEl[0].progress, 1), -1);
        }
        const offset$$1 = $slideEl[0].swiperSlideOffset;
        const rotate = -180 * progress;
        let rotateY = rotate;
        let rotateX = 0;
        let tx = -offset$$1;
        let ty = 0;
        if (!swiper.isHorizontal()) {
          ty = tx;
          tx = 0;
          rotateX = -rotateY;
          rotateY = 0;
        } else if (rtl) {
          rotateY = -rotateY;
        }

         $slideEl[0].style.zIndex = -Math.abs(Math.round(progress)) + slides.length;

         if (swiper.params.flipEffect.slideShadows) {
          // Set shadows
          let shadowBefore = swiper.isHorizontal() ? $slideEl.find('.swiper-slide-shadow-left') : $slideEl.find('.swiper-slide-shadow-top');
          let shadowAfter = swiper.isHorizontal() ? $slideEl.find('.swiper-slide-shadow-right') : $slideEl.find('.swiper-slide-shadow-bottom');
          if (shadowBefore.length === 0) {
            shadowBefore = swiper.$(`<div class="swiper-slide-shadow-${swiper.isHorizontal() ? 'left' : 'top'}"></div>`);
            $slideEl.append(shadowBefore);
          }
          if (shadowAfter.length === 0) {
            shadowAfter = swiper.$(`<div class="swiper-slide-shadow-${swiper.isHorizontal() ? 'right' : 'bottom'}"></div>`);
            $slideEl.append(shadowAfter);
          }
          if (shadowBefore.length) shadowBefore[0].style.opacity = Math.max(-progress, 0);
          if (shadowAfter.length) shadowAfter[0].style.opacity = Math.max(progress, 0);
        }
        $slideEl
          .transform(`translate3d(${tx}px, ${ty}px, 0px) rotateX(${rotateX}deg) rotateY(${rotateY}deg)`);
      }
    },
    setTransition(duration) {
      const swiper = this;
      const { slides, activeIndex, $wrapperEl } = swiper;
      slides
        .transition(duration)
        .find('.swiper-slide-shadow-top, .swiper-slide-shadow-right, .swiper-slide-shadow-bottom, .swiper-slide-shadow-left')
        .transition(duration);
      if (swiper.params.virtualTranslate && duration !== 0) {
        let eventTriggered = false;
        // eslint-disable-next-line
        slides.eq(activeIndex).transitionEnd(function onTransitionEnd() {
          if (eventTriggered) return;
          if (!swiper || swiper.destroyed) return;

          eventTriggered = true;
          swiper.animating = false;
          const triggerEvents = ['webkitTransitionEnd', 'transitionend'];
          for (let i = 0; i < triggerEvents.length; i += 1) {
            $wrapperEl.trigger(triggerEvents[i]);
          }
        });
      }
    }
  }
};
```

<!-- Auto Generated Below -->


## Usage

### Angular

```typescript
import { Component } from '@angular/core';

@Component({
  selector: 'slides-example',
  template: `
    <ion-slides pager="true" [options]="slideOpts">
      <ion-slide>
        <h1>Slide 1</h1>
      </ion-slide>
      <ion-slide>
        <h1>Slide 2</h1>
      </ion-slide>
      <ion-slide>
        <h1>Slide 3</h1>
      </ion-slide>
    </ion-slides>
  `
})
export class SlideExample {
  // Optional parameters to pass to the swiper instance. See http://idangero.us/swiper/api/ for valid options.
  slideOpts = {
    initialSlide: 1,
    speed: 400
  };
  constructor() {}
}
```


### Javascript

```html
  <ion-slides pager="true">

    <ion-slide>
      <h1>Slide 1</h1>
    </ion-slide>

    <ion-slide>
      <h1>Slide 2</h1>
    </ion-slide>

    <ion-slide>
      <h1>Slide 3</h1>
    </ion-slide>
  </ion-slides>
```

```javascript
var slides = document.querySelector('ion-slides');

// Optional parameters to pass to the swiper instance. See http://idangero.us/swiper/api/ for valid options.
slides.options = {
  initialSlide: 1,
  speed: 400
}
```


### React

```tsx
import React from 'react';
import { IonSlides, IonSlide, IonContent } from '@ionic/react';

// Optional parameters to pass to the swiper instance. See http://idangero.us/swiper/api/ for valid options.
const slideOpts = {
  initialSlide: 1,
  speed: 400
};

export const SlidesExample: React.FC = () => (
  <IonContent>
    <IonSlides pager={true} options={slideOpts}>
      <IonSlide>
        <h1>Slide 1</h1>
      </IonSlide>
      <IonSlide>
        <h1>Slide 2</h1>
      </IonSlide>
      <IonSlide>
        <h1>Slide 3</h1>
      </IonSlide>
    </IonSlides>
  </IonContent>
);
```


### Vue

```html
<template>
  <ion-slides pager="true" :options="slideOpts">
    <ion-slide>
      <h1>Slide 1</h1>
    </ion-slide>
    <ion-slide>
      <h1>Slide 2</h1>
    </ion-slide>
    <ion-slide>
      <h1>Slide 3</h1>
    </ion-slide>
  </ion-slides>
</template>


<script lang="ts">
  import { Component, Vue } from 'vue-property-decorator';

  @Component()
  export default class Example extends Vue {
    // Optional parameters to pass to the swiper instance. See http://idangero.us/swiper/api/ for valid options.
    slideOpts = {
      initialSlide: 1,
      speed: 400
    };
  }
</script>
```



## Properties

| Property    | Attribute   | Description                                                                                  | Type            | Default     |
| ----------- | ----------- | -------------------------------------------------------------------------------------------- | --------------- | ----------- |
| `mode`      | `mode`      | The mode determines which platform styles to use.                                            | `"ios" \| "md"` | `undefined` |
| `options`   | `options`   | Options to pass to the swiper instance. See http://idangero.us/swiper/api/ for valid options | `any`           | `{}`        |
| `pager`     | `pager`     | If `true`, show the pagination.                                                              | `boolean`       | `false`     |
| `scrollbar` | `scrollbar` | If `true`, show the scrollbar.                                                               | `boolean`       | `false`     |


## Events

| Event                     | Description                                                 | Type                |
| ------------------------- | ----------------------------------------------------------- | ------------------- |
| `ionSlideDidChange`       | Emitted after the active slide has changed.                 | `CustomEvent<void>` |
| `ionSlideDoubleTap`       | Emitted when the user double taps on the slide's container. | `CustomEvent<void>` |
| `ionSlideDrag`            | Emitted when the slider is actively being moved.            | `CustomEvent<void>` |
| `ionSlideNextEnd`         | Emitted when the next slide has ended.                      | `CustomEvent<void>` |
| `ionSlideNextStart`       | Emitted when the next slide has started.                    | `CustomEvent<void>` |
| `ionSlidePrevEnd`         | Emitted when the previous slide has ended.                  | `CustomEvent<void>` |
| `ionSlidePrevStart`       | Emitted when the previous slide has started.                | `CustomEvent<void>` |
| `ionSlideReachEnd`        | Emitted when the slider is at the last slide.               | `CustomEvent<void>` |
| `ionSlideReachStart`      | Emitted when the slider is at its initial position.         | `CustomEvent<void>` |
| `ionSlidesDidLoad`        | Emitted after Swiper initialization                         | `CustomEvent<void>` |
| `ionSlideTap`             | Emitted when the user taps/clicks on the slide's container. | `CustomEvent<void>` |
| `ionSlideTouchEnd`        | Emitted when the user releases the touch.                   | `CustomEvent<void>` |
| `ionSlideTouchStart`      | Emitted when the user first touches the slider.             | `CustomEvent<void>` |
| `ionSlideTransitionEnd`   | Emitted when the slide transition has ended.                | `CustomEvent<void>` |
| `ionSlideTransitionStart` | Emitted when the slide transition has started.              | `CustomEvent<void>` |
| `ionSlideWillChange`      | Emitted before the active slide has changed.                | `CustomEvent<void>` |


## Methods

### `getActiveIndex() => Promise<number>`

Get the index of the active slide.

#### Returns

Type: `Promise<number>`



### `getPreviousIndex() => Promise<number>`

Get the index of the previous slide.

#### Returns

Type: `Promise<number>`



### `getSwiper() => Promise<any>`

Get the Swiper instance.
Use this to access the full Swiper API.
See https://idangero.us/swiper/api/ for all API options.

#### Returns

Type: `Promise<any>`



### `isBeginning() => Promise<boolean>`

Get whether or not the current slide is the first slide.

#### Returns

Type: `Promise<boolean>`



### `isEnd() => Promise<boolean>`

Get whether or not the current slide is the last slide.

#### Returns

Type: `Promise<boolean>`



### `length() => Promise<number>`

Get the total number of slides.

#### Returns

Type: `Promise<number>`



### `lockSwipeToNext(lock: boolean) => Promise<void>`

Lock or unlock the ability to slide to the next slide.

#### Returns

Type: `Promise<void>`



### `lockSwipeToPrev(lock: boolean) => Promise<void>`

Lock or unlock the ability to slide to the previous slide.

#### Returns

Type: `Promise<void>`



### `lockSwipes(lock: boolean) => Promise<void>`

Lock or unlock the ability to slide to the next or previous slide.

#### Returns

Type: `Promise<void>`



### `slideNext(speed?: number | undefined, runCallbacks?: boolean | undefined) => Promise<void>`

Transition to the next slide.

#### Returns

Type: `Promise<void>`



### `slidePrev(speed?: number | undefined, runCallbacks?: boolean | undefined) => Promise<void>`

Transition to the previous slide.

#### Returns

Type: `Promise<void>`



### `slideTo(index: number, speed?: number | undefined, runCallbacks?: boolean | undefined) => Promise<void>`

Transition to the specified slide.

#### Returns

Type: `Promise<void>`



### `startAutoplay() => Promise<void>`

Start auto play.

#### Returns

Type: `Promise<void>`



### `stopAutoplay() => Promise<void>`

Stop auto play.

#### Returns

Type: `Promise<void>`



### `update() => Promise<void>`

Update the underlying slider implementation. Call this if you've added or removed
child slides.

#### Returns

Type: `Promise<void>`



### `updateAutoHeight(speed?: number | undefined) => Promise<void>`

Force swiper to update its height (when autoHeight is enabled) for the duration
equal to 'speed' parameter.

#### Returns

Type: `Promise<void>`




## CSS Custom Properties

| Name                               | Description                                      |
| ---------------------------------- | ------------------------------------------------ |
| `--bullet-background`              | Background of the pagination bullets             |
| `--bullet-background-active`       | Background of the active pagination bullet       |
| `--progress-bar-background`        | Background of the pagination progress-bar        |
| `--progress-bar-background-active` | Background of the active pagination progress-bar |
| `--scroll-bar-background`          | Background of the pagination scroll-bar          |
| `--scroll-bar-background-active`   | Background of the active pagination scroll-bar   |


----------------------------------------------

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