@maman/react-native-web-swiper

react-native-web-swiper

Simple swiper / slider. Works both on React-Native and React-Native-Web.

Demo

Hybrid Snack: https://snack.expo.io/@oxyii/react-native-web-swiper

Installation

$ npm i react-native-web-swiper --save

Usage

import React from 'react';
import { StyleSheet, Text, View } from 'react-native';
import Swiper from 'react-native-web-swiper';

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  slideContainer: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  slide1: {
    backgroundColor: 'rgba(20,20,200,0.3)',
  },
  slide2: {
    backgroundColor: 'rgba(20,200,20,0.3)',
  },
  slide3: {
    backgroundColor: 'rgba(200,20,20,0.3)',
  },
});

export default class Screen extends React.Component {
  render() {
    return (
      <View style={styles.container}>
        <Swiper>
          <View style={[styles.slideContainer,styles.slide1]}>
            <Text>Slide 1</Text>
          </View>
          <View style={[styles.slideContainer,styles.slide2]}>
            <Text>Slide 2</Text>
          </View>
          <View style={[styles.slideContainer,styles.slide3]}>
            <Text>Slide 3</Text>
          </View>
        </Swiper>
      </View>
    );
  }
}

With props

<Swiper
  vertical {/* slide up / down instead left / right */}
  from={1} {/* initial slide is second */}
  loop {/* back to first slide after last */}
  timeout={2} {/* autoplay duration (2 secs) */}
  springConfig={{ speed: 11 }} {/* RN Animated.spring config */}
  minDistanceForAction={0.15} {/* Swipe less that 15% keep active slide */}
  positionFixed {/* Fix mobile safari vertical bounces */}
  controlsProps={{
    DotComponent: ({ index, isActive, onPress }) => <Text onPress={onPress}>Your Custom Dot {index+1}</Text>
  }}
>
  <View style={{ flex: 1 }} /> {/* Slide 1 */}
  <View style={{ flex: 1 }} /> {/* Slide 2 */}
  {/* ... */}
</Swiper>

Dynamic content

The slide automatically gets props.activeIndex and props.index.

import React from 'react';
import { Text, View } from 'react-native';
import Swiper from 'react-native-web-swiper';

type Props = {
  index?: number,
  activeIndex?: number,
}
export const SomeSlide = (props: Props) => (
  <View>
    <Text>{props.activeIndex}/{props.index}</Text>
  </View>
)

export default () => (
  <Swiper>
    <SomeSlide />
    <SomeSlide />
  </Swiper>
)

This is possible because Swiper used cloneElement and inject internally the activeIndex and index props to each slide.

keys are automatically set for each child of Swiper (when injecting props), if activeIndex - index is 0, it will set the key to -1. This will cause the new active slide to rerender

Props

Prop	Default	Type	Description
vertical	false	boolean	Swiper vertical layout
from	0	number	Initial slide index
loop	false	boolean	Set to true to enable continuous loop mode
timeout	0	number	Delay between auto play transitions (in second). Set negative value for reverse autoplay :satisfied:. Autoplay disabled by default
gesturesEnabled	() => true	function	Function that returns boolean value. Must return false to disable swiping mechanism. Does not disable Prev / Next buttons
springConfig		Animated.spring	Tune spring animation on autoplay, touch release or slides changes via buttons
minDistanceToCapture	5	number	Initiate animation after swipe this distance. It fix gesture collisions inside ScrollView
minDistanceForAction	0.2	number	Minimal part of swiper width (or height for vertical) must be swiped for changing index. Otherwise animation restore current slide. Default value 0.2 means that 20% must be swiped for change index
positionFixed	false	boolean	Swiper inner container position fixed instead relative. Fix mobile safari vertical bounce
containerStyle		ViewPropTypes.style	Outer (root) container style
innerContainerStyle		ViewPropTypes.style	Inner container style
swipeAreaStyle		ViewPropTypes.style	Swipe area style
slideWrapperStyle		ViewPropTypes.style	Each slide wrapper style
controlsEnabled	true	boolean	Dots and control buttons visible and enabled
Controls		React.Component	Custom controls component
onAnimationStart		function	Any swiper animation start
onAnimationEnd		function	Any swiper animation end
onIndexChanged		function	Called when active index changed
controlsProps		object	see below

Controls Props

Over the swiper we need to create a controls layer. But this layer will block the possibility of swiper layer control. We created 9 controls placeholders to solve this problem: top-left, top, top-right, left, center, right, bottom-left, bottom and bottom-right. You can adjust controls position by placing into relevant placeholder:

<Swiper
  ...
  controlsProps={{
    prevTitle: 'prev button title',
    nextTitle: 'next button title',
    dotsTouchable: true, {/* touch over dot will make swiper move to rel slide */}
    dotsPos: 'top',
    prevPos: false, {/* hide prev button */}
    nextPos: 'top-right',
    cellsStyle: {
      'top': { padding: 5, backgroundColor: 'rgba(0, 0, 0, .3)' },
      'top-left': { /* any custom placeholder style */ },
    },
    cellsContent: {
      'bottom-right': <AnyComponent /> {/* Additional content in placeholder */}
    }
  }}
/>

Prop	Default	Type	Description
cellsStyle		object	Controls corners placeholders styles. Allowed keys is: top-left, top, top-right, left, center, right, bottom-left, bottom and bottom-right, allowed values is ViewPropTypes.style
cellsContent		object	Controls corners placeholders additional content. Allowed keys is: top-left, top, top-right, left, center, right, bottom-left, bottom and bottom-right, allowed values is string OR React element
dotsPos	'bottom' OR 'right' if vertical	boolean OR enum('top-left', 'top', 'top-right', 'left', 'center', 'right', 'bottom-left', 'bottom', 'bottom-right')	Dots position
prevPos	'bottom-left' OR 'top-right' if vertical	boolean OR enum('top-left', 'top', 'top-right', 'left', 'center', 'right', 'bottom-left', 'bottom', 'bottom-right')	Prev button position
nextPos	'bottom-right'	boolean OR enum('top-left', 'top', 'top-right', 'left', 'center', 'right', 'bottom-left', 'bottom', 'bottom-right')	Next button position
prevTitle	'Prev'	string	Prev button title
nextTitle	'Next'	string	Next button title
prevTitleStyle		Text.propTypes.style	Customize prev button title
nextTitleStyle		Text.propTypes.style	Customize next button title
PrevComponent		React.Component	Custom prev button component
NextComponent		React.Component	Custom next button component
firstPrevElement		element	Custom prev element on first slide (if not loop)
lastNextElement		element	Custom next element on last slide (if not loop)
dotsTouchable	false	boolean	Touches over dots will move swiper to relative slide
dotsWrapperStyle		ViewPropTypes.style	Dots wrapper View style
dotProps		object	react-native-elements Badge props
dotActiveStyle		object	Additional style to active dot. Will be added to dot badgeStyle
DotComponent		React.Component	Custom dot component

Interaction methods

Store a reference to the Swiper in your component by using the ref prop provided by React (see docs):

const swiperRef = useRef(null);

...

<Swiper
  ref={swiperRef}
  ...
/>

Then you can manually trigger swiper from anywhere:

() => {
  swiperRef.current.goTo(1);
  swiperRef.current.goToPrev();
  swiperRef.current.goToNext();
  const index = swiperRef.current.getActiveIndex();
};